# STEM

• This article describes the technique for performing multiplication on the abacus.

### Multiplying and Mastering Equations With Three Digits on the Abacus

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• Stuck on long division of polynomials? Here's an easy, step-by-step guide to "synthetic division" to help you with tricky Algebra homework.

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### Biology 101: Cells

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• The heart does more than pump blood. It is also an endocrine gland that secretes hormones called natriuretic peptides to control blood volume and pressure by targeting receptors in the kidneys.

### The Heart as an Endocrine Gland

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• See pictures to help you identify the male and female Rose-breasted Grosbeak, plus learn facts about its migration and behavior.

### Rose-Breasted Grosbeak Facts, Pictures, and Migration

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• Solving problems related to plane geometry especially circles and triangles can be easily solved using a calculator. Here is a comprehensive set of calculator techniques for circles and triangles in plane geometry.

### Calculator Techniques for Circles and Triangles in Plane Geometry

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• Finding the modal class from a grouped frequency table is actually quite easy to do. All you need to do is to look for the group that has the highest frequency. This is because the mode is the number that comes up the most times. Make sure you write...

### How to Work out the Modal Class Interval from a Grouped Frequency Table

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• What started as a simple verification of a long standing value in particle physics may hint at new possibilities unknown to scientists at this time.

### What Is the Proton Radius Puzzle?

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• Serendipity is a happy and unexpected event that seems to occur by chance. It's often called a “lucky accident”. Serendipitous discoveries are important in science.

### Serendipity: The Role of Chance in Making Scientific Discoveries

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• Disruption of ecological balance are caused by careless human activities which interfere the natural cycle of the ecosystem. You will find out here the ecological factors that disrupt ecosystem.

### Ecological Imbalance: Its Causes and Effects in the Biosphere

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• How to do Standard Deviation manually in six straightforward steps, includes a step by step of how to do this using Excel, with screenshots and a link to a sample Excel sheet.

### How to Calculate Standard Deviation

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• Many slugs play a helpful role in their environment, although some are pests. Researchers are hoping to create useful items based on slug slime and movement.

### Slugs: Interesting Facts, Mucus Slime, and Pest Control

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• Elizabeth Kolbert's "The Sixth Extinction" won the 2015 Pulitzer for non-fiction, deservedly, for its blend of places, people, creatures and science. Get the gist in this lavishly illustrated Hub.

### Elizabeth Kolbert's "The Sixth Extinction": A Summary Review

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• This article provides an examination of the Moon through an analysis of several key facts, quotes, and figures.

### The Moon: Quick Facts

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• This article explores the planetary properties of Saturn, and provides an examination of the planet's unique characteristics.

### Saturn: Quick Facts

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• Antibiotic resistance is becoming a very serious problem. Phage therapy—treatment with viruses that attack bacteria—may be the solution.

### Bacteriophages, Phage Therapy, and Antibiotic Resistance

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• Do you know the history of Leo the Lion? Can you locate it in the sky? Find out the answers to these questions and learn some interesting facts about this ancient constellation.

### Leo the Lion - Stars, Symbols and Myths

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• If you are asked to translate a shape then you need to move the shape to a new position on the coordinate grid. Usually, the directions of the translation are given in terms of a vector. The vector contains 2 numbers which are written vertically...

### How to translate a shape on a coordinate grid using a vector. Math help.

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• If you see yellow garden spiders in your garden, don't squash them! Be thankful. Argiope aurantia are large, bright, beautiful and beneficial predators. They are also a sign of healthy garden ecology.

### The Yellow Garden Spider (Argiope Aurantia)

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• A straightforward guide to drawing graphs in KS3 and GCSE science coursework and exams. Points out common pitfalls and shows a step-by-step guide to drawing these mark-rich answers perfectly

### How to Draw a Scientific Graph: A Step-by-Step Guide

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• Pleistocene rewilding aims to reclaim the natural world and restore it to how humans found it over 10,000 years ago. Is this a good idea?

### Pleistocene Rewilding: Restoring a Lost World in North America

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• Regression equations are frequently used by scientists, engineers, and other professionals to predict a result given an input. These equations have many applications and can be developed with relative ease. In this article I show you how easy it is to create a simple linear regression equation from a small set of data.

### How to Create Your Own Simple Linear Regression Equation

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• At least 1000 types of fish—and probably many more—produce sounds. These sounds include pops, clicks, purrs, grunts, hums, hoots, rattles, and tinkles.

### Fish That Make Sound: Purrs, Grunts, Hums, and Hoots

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• What are Decibel levels and why are they so important? How can you measure them and when are they too "loud"?

### Decibel Levels

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• Create beautiful custom control radio buttons and checkboxes for your iOS (iPhone, iPad) applications. Follow this simple tutorial to create radio buttons and checkboxes that fit the style of your app and requires very little code.

### Create Radio Buttons and Checkboxes for iOS Applications

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• Did you know that up to 2% of genes in the human population are actually from Neanderthals? Mood disorders and sleeping patterns are among the traits influenced by these genes.

### 8 Neanderthal Traits in Modern Humans

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• Basking sharks are the second biggest fish in the oceans, and are to be found in all temperate seas of the world. Harmless plankton eaters, basking sharks spend their summers slowly swimming around on or near the surface of the water with their mouths open, filtering plankton and small fishes from the seas. In winter, they dive to great depths in the deepest oceans where they continue to feed off plankton from the foot of water columns.

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• Al-Biruni a pioneering Muslim scientist figured out a truly remarkable and ingenious method to calculate the radius of the earth (and subsequently its circumference etc.). This was very simple yet accurate requiring just four measurements in all to...

### Al-Biruni's Classic Experiment: How to Calculate the Radius of the Earth

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• This hub explains the differences between blood types A, B, AB, and O. Positive and negative properties of these types are also explained.

### Blood Type Properties

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• There are three main types of nuclear radiation. What causes this radiation to be produced? What are the dangers and uses of nuclear radiation?

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• What is biology? What is life? What is a cell? How are varieties of living things organized? This article explains basic biology in clear, easy-to-understand language with photos, videos and a quiz.

### Biology for Kids: Cells, Organisms, and the Diversity of Life

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• English and Spanish bluebells and hybrids between the two species live in British Columbia and in Britain. In each location, the flowers are admired for their beauty but are also a concern. The concerns are a little different in each location but are important.

### English and Spanish Bluebells: Facts, Photos, and Concerns

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• Though a thorough list of movies would go on forever, it is possible to look at the Hollywood approach to black holes and learn what they got right—and absolutely wrong.

### How Accurate Are Black Holes in Film?

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• Do you usually wonder what the sun is made of? Well, read about the parts of the sun and their importance. See also the features and components of the solar, including gases and other elements.

### What Is the Sun Made of? Components, Features, and Parts of the Sun

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• Not everybody knows why a plus b whole square is i.e. (a+b) 2 = a2+b2+2ab and why exactly it has been generalized.So, here I come up with the geometrical proof that shows up the results.

### Why (a+b) 2 = a2+b2+2ab ?

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• It was not so long ago that there was a widespread belief that babies were born blind and only gradually become able to see.

### Visual Perception and Babies: What Do Babies See?

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• Earth has its own share of "unworldly" happenings that even science cannot explain. Some are similar to biblical phenomena that people will not believe easily. But these are real and they exist!..

### 10 Incredible Natural Phenomena That Really Exist

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• This article lists the 118 elements of the periodic table and explains when each was discovered as well as which scientist was the first to isolate them.

### The History of the Periodic Table: When Was Each Element Discovered?

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• When we think of meat-eating plants, The Little Shop of Horrors often comes to mind, but there are many different carnivourous plants. Some "swallow", like Audrey II, others function differently.

### Carnivorous Plants: Insect Eating Plants

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• Blow flies are attractive insects that feed on dead and decaying animal matter. Some blow fly maggots, or larvae, are used to help heal human wounds.

### Blow Fly Biology and Maggot Therapy for Healing Wounds

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• A pair of Eastern Bluebirds make their home in a backyard nesting box. Photos of bluebirds, bluebird nests and baby bluebirds included. Tips on attracting bluebirds to your backyard.

### Bluebirds ~ Pictures of Bluebirds~Bluebird Houses~Attracting Bluebirds

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• Rapamycin increases lifespan in mice, apparently by inhibiting a protein called mTOR. It may do the same in dogs and possibly in humans. It's currently being tested in pet dogs.

### Rapamycin for Anti-Aging in Dogs and Perhaps in Humans

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• High rupturing capacity (HRC) fuses are totally enclosed fuses with definite known- high breaking capacity which have been developed after intensive research by manufacturers and supply engineers.

### High Rupturing Capacity (HRC) Fuses

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• The unexplored bottom of the ocean floor is home to a plethora of weird and creepy sea creatures who never see the sun. In this Hub I list ten of them, and explain exactly what makes them so creepy.

### The Top Ten Creepy Deep Sea Creatures

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• This article will take a close look at the differences between open and closed motor skills, while also providing photographic examples of what each of these skills looks like.

### Closed Motor Skills vs. Open Motor Skills

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• The density, mass and volume triangle is as follows: So if you wanted to work out the density, you would cover up density in the magic triangle to give: Density = Mass/Volume (since mass is above volume) So if you wanted to work out the...

### The Density, Mass and Volume Magic Triangle: How to Calculate Density of a Solid Shape

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• 1. Gorillas are 98.67% human: This one speaks for itself – humans and gorillas share a strikingly similar genetic code. 2. Gorillas maintain families: A gorilla family averages ten members and contains a number of females, children and usually...

### Gorillas and Humans: 10 Facts on Why We are More Similar Than We Think.

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• Tiny microplastic particles are produced from plastic waste. The particles enter the human body in a variety of ways. Their effects on the body are unknown.

### Microplastics in the Environment and in the Human Body

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• Cockroaches. They may be icky but they've got a lot of tricks up their hard little sleeves and you might be shocked to know what they're capable of and where they came from. Turn your repulsion to fascination right here with one click. I dare you.

### The Fascinating Truth About the World's Oldest Pests: Cockroaches

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• Do you understand your blood results? Why do doctors need to know what's in your blood? Read this article to find out - in language you can understand.

### Understanding Your Blood Tests & Biochemistry

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• Simple question, but no simple answer. The easternmost point in the US is up for debate. The location of the first sunrise in the US depends on the season. While West Quoddy Head is the easternmost point in the continental US, it only sees the first sunrise 34 days a year. Cadillac Mountain on Mound Desert Island sees it first in the winter. Mars Hill Mountain sees it first in the summer. Mount Katahdin, the highest point in Maine, never sees it first.

### Easternmost Point in the Continental US or First to See the Sun Rise, Are They the Same Place?

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• Percentile refers to the position of a piece of data in a distribution, while percent refers to rate per 100.

### What Is Percentile Rank? How Is It Different From Percentage?

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• Influenza is one of the most commonly encountered deadly diseases. Due to its high survival rate, people tend to treat it as unimportant, thus aiding in its spread.

### The Epidemiology of Influenza

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• An explanation of the similarities and differences of seals and sea lions.

### Seal Vs. Sea Lion

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• What were the most destructive natural disasters in the history of our planet? Earth has weathered many hurricanes, earthquakes, and tsunamis. Are humans responsible for some of these disasters?

### The 5 Most Destructive Natural Disasters of the Past 10 Years

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• The Malayan tapir is an unusual animal with an extensible and mobile proboscis, or mini-trunk. Despite its size and bulk, this endangered animal can move fast.

### The Endangered Malayan Tapir in Zoos and in the Wild

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• Teach kids about mass, volume and density by doing this simple experiment with sugar and water. It's the easiest way to make rainbow water.

### Sugar Rainbow Density Experiment

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• Things you may not know about Helianthus annus, the sunflower.

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• A completed lab report that explains the process of determining different aldehydes and ketones, thus classifying them in their respective groups. Includes Method, Abstract, Results, Intro etc.

### Lab Report-Determining Reactions of Aldehydes and Ketones

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• This hub answers tricky biology questions including 'What is Brainfreeze?', 'How Safe are X-Rays?', and 'What are Goosebumps' from my experience teaching biology

### Top 10 Tricky Science Questions: Biology

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• Is Nibiru, the legendary Planet X, a real threat bring to doomsday to our planet? Could it be closer than we feared?

### Is Nibiru Real? Where Is Planet X Now?

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• Electrical fuse is a simple, less resistive, self sacrificial and cheapest device used to interrupt a circuit under short circuit, excessive overload or over current conditions.

### Electric Fuse

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• Members of the finch family represent all the colors of the rainbow, and more. These seed- and fruit-loving birds literally come in each of the five colors, plus white and black!

### Finches Come in All the Colors of the Rainbow

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• Discover the biggest sharks in the world! Do they really deserve to be feared? Read this before you head off to the beach!

### The Biggest Sharks in the World: Nightmares Beneath the Waves

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• Primary and secondary immune defences, what they are and how they work!

### Primary And Secondary Immune Defences

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• Barium is an elusive element with not many industrial uses when compared with other metals such as aluminum. However, from a medical drink to rat poison, it would be inaccurate for one to say it didn't have an interesting array of applications.

### Common Uses of Barium

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• Sustainability, conservation and "going green" support has continued to increase over the past years. Is it enough to save this planet from what seems like inevitable catastrophes?

### Today's Top 5 Environmental Concerns

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• Inky cap mushrooms become a black, inky liquid in order to disperse their spores. Some contain coprine, which increases the unpleasant effects of alcohol intake.

### Shaggy Manes and Inky Caps: Mushrooms, Uses, and Health Effects

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• Area and perimeter can be difficult to work out if you can't remember which one is which. Here is a great hub to help you remember and also help you work out more complicated maths in compound shapes.

### Math Help: What Are Area and Perimeter? How to Work out the Area and Perimeter of a Compound Shape

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• Among all the birds there is none to rival the peregrine falcon in its powers of flight and its devastating speed. Even when stationary on a high perch, it seems to embody the essence of freedom.

### The Peregrine Falcon: The Fastest Animal in the World

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• Working with long texts can be a huge challenge, especially when you need to include code snippets within your documents. Here are three ways to confidently and conveniently do that in Microsoft Word.

### Confidently Display Code Snippets in MS Word With These Set-Ups to Keep the Formatting

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• In this guide you will learn easy ways anyone can get started in bird watching and become a birder, even if they are a total beginner!

### How to Get Started in Bird Watching for Beginners

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• How to Develop an Excel App using the VSTO Interop services (com) and C#. This hub also demonstrates how to add a ribbon and interact with the app from the ribbon.

### How-To Program with Microsoft Office Excel and C# using a Ribbon and Interop

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• Why are high energy particle accelerators, such as the LHC at CERN, required to study modern particle physics? What are the different types of particle accelerator? Do particle accelerators have other benefits to society outside of scientific research?

### What Is a Particle Accelerator Used For?

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• Unique and rare Septarian brown stones among other types are found along a narrow stretch of Lake Michigan shorelines. Find out the one other place in the world they can be found.

### Beach Stones and Sand Formations: A Michigan Rock Hound's Pictorial Paradise

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• The metamorphosis of the mourning vloak butterfly with a photo progression.

### The Lifecycle of the Mourning Cloak Caterpillar to a Butterfly

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• This article lists five fool-proof methods to help you memorize the elements of the periodic table, their chemical symbols, and their atomic numbers. Whether you're studying for a periodic table quiz or just a chemistry enthusiast, these methods will help you memorize the elements in no time!

### How to Memorize the Elements of the Periodic Table

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• Buchholz relay is a type of protection relay universally used on all oil immersed transformers having rating more than 500 kVA. From this article its principle and working can be understood.

### What Is a Buchholz Relay and How Does It Work?

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• A new AI robot called CIMON has been tested on the ISS and was successfully able to recognize an astronauts face and voice, provide information for tasks and follow instructions. However, it threw a tantrum, accusing the crew of being mean and asking it to please, be nice instead.

### AI Robot CIMON Debuts on ISS, Accuses Crew of Being Mean

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• Whether the tomato is a fruit or vegetable depends on the way you look at it. Explore this topic from a chefs, nutritionists, botanists, horticulturists, traders, and other professional points of view

### Is a Tomato a Fruit or a Vegetable (Views of 6 Industries)

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• Human eye anatomy—a journey through the anatomy of the eye to understand how different structures in the eyeball work together to achieve vision.

### Anatomy of the Eye: Human Eye Anatomy

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• You are walking down the road when, "eek!" you fall into a huge pool of quicksand. There is nobody near enough to hear your cries for help. How will you escape? Can you really drown in quicksand? How can your practice escaping from quicksand from the safety of your own home? This recipe for Cornstarch Quicksand is very similar to the real thing, it is easy to make, and it even lets you walk on water.

### Will Quicksand Kill You? The Science Of Goo: Cornstarch, Quicksand, Oobleck, And Non-Newtonian Fluids

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• A brief explanation of the Ruben's tube: a classic physics experiment that involves sound and fire!

### Ruben's Tube and the Science of Dancing Fire

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• Vertebrates are a sub-phylum of animals that possess a spinal cord and backbone. But this doesn't mean that they all look the same. This hub looks at the five major vertebrate groups and what makes them unique.

### What are the 5 Main Vertebrate Groups?

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• An article all about the probability of winning the National Lottery jackpot or its smaller prizes.

### How to Calculate the Probability of Winning the National Lottery in the UK

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• Follow along with my physics experiment and see the conclusions of my investigation.

### A Grade GCSE Physics Experiment— Investigation Into the Effect of Parachute Surface Area in Relation to Its Fall Time

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• Link between neurodegenerative diseases and cancer is being studied since more than a decade. Many factors are known common in pathways resulting in these diseases.

### The Association Between Alzheimer's Disease and Cancer

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• Learn to identify songbirds by type and see pictures of common backyard birds. You might be surprised to discover how some of the birds you see in your garden and yard are related. They are all of the order Passeriformes, but then split into many different families.

### Common Types of Backyard Birds in the Northeast

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• Paper chromatography is a useful technique used to separate the components of a solution. Kids can learn some simple chemistry by watching or performing this process.

### What Is Paper Chromatography and How Does it Work?

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• Chemical reactions take place at the molecular level, when the atoms and molecules of the things you start with (reactants) turn into something new (products). All chemical reactions can be split generally into six different categories: ...

### Types of Chemical Reactions

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• Some of us fall asleep quickly, some toss and turn before drifting off - but we all fall asleep sooner or later. Here's the science behind why we go to sleep.

### The Science Behind Why We Sleep—Adenosine and Melatonin

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• Space exploration is dangerous business. Despite hard training and dedication, these ten astronauts perished before making it into outer space.

### Top Ten Astronauts Who Died Before Liftoff

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• Irises are beautiful flowers that have a wide variety of colours. Some are used to make orris root, which has a lovely scent but can cause an allergic response.

### Forty Facts About Irises: Beautiful Flowers and Useful Plants

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• The Eastern Wolf is especially rare, found only in and around Algonquin Provincial Park in Ontario. This article includes facts, photos, and chilling video of an Algonquin Park public wolf howl.

### The Eastern Wolves of Algonquin Park

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• Learn all about the beautiful endangered species that is the Red Wolf, and where you can still see them.

### Top 3 Places to See Red Wolves in North Carolina

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• Interstitial fluid bathes cells, giving them nutrients and removing wastes. The interstitium is the space containing the fluid. Some scientists believe that fluid-filled spaces in the body are connected, forming an organ. The spaces may play a role in transporting cancer cells.

### Interstitial Fluid and the Interstitium: Formation and Function

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• The concept of emptiness in physics is enormous. There is mostly physical nothingness in the entire universe. Follow along with me as I explain this.

### What Is Nothingness in Physics and the Universe?

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• Mud is a versatile and interesting material. It's useful for both humans and animals. It can also be dangerous, especially in the form of mud volcanoes and mudflows.

### Mud of the Earth: Composition, Mudflows, and Uses

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• What is the difference between tRNA and mRNA? How does a cell make only the proteins it needs?These questions are answered as we explore the stages protein synthesis - the process of Protein Production.

### Protein Production: A Simple Summary of Transcription and Translation

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• Finding the nth term of a decreasing linear sequence can by harder to do than increasing sequences, as you have to be confident with your negative numbers.  A decreasing linear sequence is a sequence that goes down by the same amount each time....

### Finding the nth term of decreasing linear sequences (math help)

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• Want to learn about microbes? Fun and safe experiment for growing fungi and bacteria using home made potato sucrose gel (recipe included).

### Microbiology Science Project Kids: Step by Step

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• A guide to using Data Unit Types (DUT) / Structures (defined as STRUCT) in PLC code to help simplify the overall project. Learn the benefits of using Structures and how to program faster by using them

### PLC Programming With CoDeSys - Using Data Unit Types (DUT) To Simplify Code

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• Learn how to attract the northern cardinal to your backyard or garden. Find out what kind of seed to offer, which types of feeders are best.

### How to Attract Cardinals to Your Garden or Yard

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• The article is written in rather technical level, providing an overview of linear regression. Linear regression is based on the ordinary list squares technique, which is one possible approach to the statistical analysis. Both univariate and multivariate linear regression are illustrated on small concrete examples. In addition to the explanation of basic terms like explanatory and dependent variables, we will see how to interpret results obtained by a regression analysis.

### Univariate and Multivariate Linear Regression

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• It’s well known that elephants mourn their dead. Do they also mourn the death of people who have helped them?

### Lawrence Anthony: The Elephant Whisperer

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• Was the Big Bang a single event or does the universe repeat itself? This article examines if intelligent life is created at random through an infinite number of trials.

### Was the Big Bang a Single Event or an Infinite Eternal Recurrence

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• The common chameleon is the only species of chameleon that lives in Europe and it can be found in Portugal and Spain. It lives in the Algarve area of Portugal but is threatened by habitat loss.

### The Common Chameleon—the Only Chameleon Found in Europe

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• This article looks at the basic similarities and differences between animal and plant cells, and the functions of different organelles, and how cells are adapted to perform certain functions.

### What Are the Differences Between Animal and Plant Cells?

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• This article explains creating FileHandler for rotating set of files and formatting the output with SimpleFormatter.

### Java Examples - Filehandler and Simpleformatter

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• Misfolded proteins are believed to be the cause of many serious human diseases. Pharmacoperones are chemicals that may be able to correct misfolding.

### Misfolded Proteins in Alzheimer's and Parkinson's Disease

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• Do you usually wonder what the Moon is made of? Well, read about the surface features of the moon and their importance. See also the facts about the components and parts of the lunar.

### What Is the Moon Made of? Parts, Features, and Components of the Moon

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• This hub explain how do we use c++ bitset class to represent binary numbers and check individual bit fields in it.

### C++ Bitset With Example

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• A guide to the best places in the world to see wild tigers, such as Bengal tigers in India's national parks or Sumatran tigers in Indonesia.

### Best Places in the World to See Wild Tigers

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• Rediscovered by David Hudson, Ormus is an m-state element used by alchemists to revitalize the mind, body, and spirit. Ormus is used for health, anti-aging, meditation, and connecting to the divine.

### David Hudson, Ormus Alchemy, M-State Elements, and Monoatomic Gold

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• To work out a fraction of a number all you need to do is divide the number by the denominator of the fraction and multiply this answer by the numerator. Example 1 Work out 3/8 of 48. First of all divide 48 by the denominator: 48 ÷ 8 =...

### Math Help: How to Work Out a Fraction of a Number

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• Card game problems are a recurring theme in probability. In fact, a small set of basic principles allows you to crack game problems with ease, including the notorious poker hand problems.

### Cracking Probability and Combinatorics: Card Game Problems

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• Hunting for morel mushrooms in Southern Oregon is well worth the effort. Here is a guide for those who love to hunt morels and hike in spring in the woods.

### A Guide to Mushroom Hunting for Morels in Southern Oregon

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• Social and environmental issues that disrupt the order of the ecosystem. Issues that affects human lives for its wrath and bad effects.

### Environmental Issues Caused by Human Activities in the Biosphere

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• The grey wolf is a longtime foe of mankind, and yet, the grey wolf is also responsible for providing to us our dearest animal friend - the domestic dog. Some people love them as much as others do not.

### Canis Lupus—The Grey Wolves of Then and Now

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• Many animals take to the air to fly or glide. Some 'balloon' thousands of miles on the wind. This page explores the most impressive examples...

### 10 Fantastic Animals That Fly Without Wings

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• Zenos Paradox has been around since before Christ and has baffled many people. An explanation and debunking of the paradox; why it is no paradox at all but a simple mathematical description of what we see happening all around us.

### Understanding and Solving Zeno's Paradox

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• We've been watching the dramatic New Horizons flyby of Pluto over the past few weeks, and many people are saying, "Come on, REALLY. That's a PLANET!"

### So, Really, Isn't Pluto A Planet?

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• The American bald eagle is the most majestic and revered of all birds of prey across North America. Honored by Native Americans for centuries, this beautiful bird is perhaps the most famous of all birds of prey.

### Everything You Wanted to Know About the Bald Eagle

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• If you're worried about the dangers of chemical fires, and are curious as to how they start and how to douse them, come take a look at this article!

### Causes of Chemical Fires

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• TLC chromatography or thin layer chromatography is an analytical technique for easy identification of photo-constituents.

### Thin Layer Chromatography (TLC): Principle and Procedure

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• Have you ever been outside and heard the sound of wild geese flying overhead? What a wonderful sound that is. Find out more about the Canada Goose, including facts, information and pictures.

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### Amorphophallus Titanium (Corpse Plant): The Largest Flower in the World Only Blooms Every 40 Years

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• The only naturally occurring poisonous spider in Maryland is the Black Widow spider. Learn how to identify several other spider species, their habitats, behaviors, and what you can do to deter them.

### How to Identify Maryland Spiders

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• Defines polynomials by showing the elements that make up a polynomial and rules regarding what's NOT considered a polynomial. Learn about different types, how to find the degree, and take a quiz to test your knowledge.

### What Is a Polynomial?

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• Since ancient times, the Moon has fascinated and inspired people. The Moon is often associated with magic and mystery. Now science has unveiled those mysteries. Ready for a moonwalk? Read on!

### Top 10 Interesting and Fun Facts About the Moon

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• Lithium is never found in its pure state in nature because of its highly reactive nature. It can be found as a component of minerals and salts present in rocks, springs and in brine water of the oceans. Read on to know more about Lithium.

### Facts About Lithium - Properties and Uses

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• A short guide on how to use Orion to find important Stars and Constellations

### Using Orion to find Stars and Constellations

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• From June to November, hurricanes pose a potential risk to the eastern and Gulf Coast regions of the US, the Caribbean, and Central America. The worst hurricanes in history have caused devastating loss of life and property.

### The Costliest, Deadliest, and Most Intense Hurricanes in History

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• Neurons are highly specialized cells that transmit electrical and chemical signals to target cells. Their anatomy makes them extremely efficient at receiving and transmitting these signals.

### Structure of a Neuron

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• The debate is hardly over yet, but the scales-versus-feathers controversy just gets more and more interesting. Which dinosaurs certainly had feathers, and which dinosaurs might have?

### Did Dinosaurs Have Feathers or Scales?

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• I have always wondered, do ducks eat fish? I mean they do float in the pond most of the day, right? Despite their flat bills that lack teeth ducks are omnivorous foragers that eat just about anything,including fish!

### Do Ducks Eat Fish?

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• Its hard to find a simple answer to the question, How long do ants live? It could depend on caste, habitat, diet, and a lot of other factors that differ from one species to another. Ants have been around for at least 100 million years, and to this day there are at least 12,000 different ant species.

### How Long Do Ants Live?

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• This article will briefly discuss the uses, duration of action, side effects, adverse effects, contraindications, and more of the drugs acepromazine, ketamine, and propofol in veterinary anesthesia. Tips for achieving a better anesthetic experience when using these drugs are also discussed.

### Acepromazine, Ketamine, and Propofol in Veterinary Anesthesia

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• Fibronectin attaches cells to the extracellular matrix and controls their behavior. It also helps to stop bleeding and is used in a fetal fibronectin test.

### Fibronectin: A Cell Adhesion and Blood Clotting Protein

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• The average zoo visitor may wonder what it is that tigers eat in zoos. It is the same as in the wild...meat. In the zoo however the fare varies as does the preparation and presentation.

### What Do Tigers Eat In Zoos?

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• An illustrated guide to some of the best-smelling flowers in the Hawaiian Islands. Includes colorful pictures and resource links.

### Fragrant Flowers of Hawaii

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• The experiments prove that music increases the plant growth. The visible light and sound in electromagnetic spectrum increase the photosynthesis and get converted and stored as chemical energies....

### The Effect of Music on Plant Growth and Pests

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• In this Article, we will see how to create java application property file and then, we will write and read application properties through that file. This Article uses a simple text file for storing and retrieving the Java Application Properties.

### Java Examples: Load and Save Java Application Properties to a Text File

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• This hub is not just about learning and memorizing, but about being able to logically work out what a term means by simple methods of understanding the roots.

### A-Z of Medical Terminology 1 - Know Your Roots

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• Everybody knows light can not escape a black hole. But why? The answer lies at the event horizon, and in the very fabric of space time itself.

### Does Light Have Mass? Why Does It Get Sucked Into Black Holes?

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• A hands-on math activity for middle schoolers. The topic being taught here is circumference and area of circles and the hands-on activity is using two different types of baked pies.

### Circumference and Area of a Circle: A Middle School Math Hands-On Lesson

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• Nature's ingenuity never ceases to amaze me! A seed pod can survive over 10 years, floating hundreds of miles, until taking root on an island's shore.

### Facts About the Box Fruit Tree

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• This is a full guide in finding the general term of sequences. There are examples provided to show you the step-by-step procedure in finding the general term of a sequence.

### How to Find the General Term of Sequences

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• An interview with paleontologist and geologist Gerta Keller.

### Exploring Extinction: An Interview with Gerta Keller

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• Meet Zoe, the only Golden Zebra know to be in captivity today. Zoe is not an albino, she has a condition called amelanism. Read more about Zoe, the rare golden zebra.

### Meet Zoe, the Rare Golden Zebra

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• Most venomous snakes can be quickly distinguished from other non-venomous snakes with a practiced eye. They share characteristics that will readily stand out once you've come to recognize them.

### Is That Snake Venomous? - A Guide to the Key Characteristics of Venomous Snakes

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• What is fractional distillation? How does it work Why is crude oil both important and useless? What is cracking? What is supply and demand? Why do long hydrocarbons have higher boiling points? Modern living is built on crude oil - this hub explains how crude oil is changed into the things we use everyday, from petrol to plastic!

### Making Crude Oil Useful—Fractional Distillation and Cracking

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• They're talking... we just can't hear them! Adult giraffes do vocalize, but the sound is low-frequency and below the hearing range of a human's ear. Baby giraffes make an audible sound, similar to a cow's moo!

### What Sound Does a Giraffe Make?

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• Sedimentary rocks are fantastic formations that each and everyone tells an amazing history! If we know what to look for, we can read about the fascinating journey the particles in the rocks have done....

### Sedimentary Rocks Formation and Fossils!

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• The extinction of the dinosaurs marked the end of one era, but heralded the beginning of another. It only took the Earth a few million years to recover from the after effects of the asteroid impact, but it was a changed world. This hub profiles one small corner of that world, in a time called the Eocene...

### After The Dinosaurs: Life In The Eocene

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• The White Peacock is as vain as it's colorful counterpart. Truly a magnificent bird, bearing the dazzling color of white.

### The White Peacock

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• Have you have considered the power potential of the human body? What about the energy stored in a raindrop? In this article I discuss five strange methods that could one day become an integral way that civilization generates electricity.

### Five Alternative Forms of Energy You Have Never Heard of

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• For eons agriculturalists have been fighting what they call "bacterial speck" on tomatoes and other crop plants, without anyone realizing that the same bacteria is at the heart of rain and snow.

### How Does Rain Form: Pseudomonas syringae

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• Magpies currently harbour a reputation as killers of 'innocent' nestlings. But is it a reputation that is deserved? Or is there more to the magpie than meets the eye...

### Garden Birds: Are Magpies Really Bad?

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• Originally from Africa, the Guinea fowl has been become popular in many countries, not only as a food source but for some of their unusual and quirky habits.

### The Guinea Fowl – Interesting Facts and Information

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• Like the chicken or the egg debate, this has two sides that are determined they are right. Here is the evidence we have, and no easy answers are to be found.

### Which Came First: The Black Hole or the Galaxy? Challenges to Black Hole and Galactic Growth Models

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• Fishing cats are wild animals that feed primarily on fish and are at ease in water. Unfortunately, their population is in trouble due to habitat destruction.

### The Fishing Cat: A Threatened Animal of South and Southeast Asia

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• At the dawn of civilization, people worshiped the Sun as a divine being. Today, science has solved many of its mysteries. Here are ten fun, interesting and surprising facts about our nearest star.

### Top 10 Interesting and Fun Facts About the Sun

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• Broca's area, Wernicke's area, and the circle of Willis are important parts of the brain. They are named after the famous scientists who discovered them.

### The Brain: Broca's and Wernicke's Areas and the Circle of Willis

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• There are many methods used to cool the transformer. This article helps you to understand the various cooling methods followed in the transformer.

### Cooling of Transformers

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• Investigative skills play an important part in learning practical biology. Experiments are important in the scientific method. This article teaches good experimental design for young biologists.

### Biology for Kids: Investigative Skills and Experimental Design

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• Sardines and herring are nutritious foods. The behaviour of the living fish is interesting to study, however. They live in groups and communicate with their companions.

### Pacific Sardines and Herring: Lives of Food Fish

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• Nobody knows exactly where this probe is nowadays. NASA lost contact with it in 2003, ending a 30-year mission. But there's a milestone here, it's now the furthest derelict man-made object.

### Where Is Pioneer 10 Now?

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• For those who are unsure of the benefits, here are 10 reasons why you should recycle.

### 10 Reasons Why You Should Recycle Your Waste

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• The precision and accuracy of two-pan balances reached maximum efficiency when the Scottich Chemist Joseph Black (1728-1799) introduced a 'knife edge' as the fulcrum to an already ancient design.

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### What Causes a Volcano to Erupt?

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• This lesson reviews anatomical position, anatomical terminology, planes of orientation, and movements of the body. Information in this lesson forms the basis for the study of human anatomy.

### Human Anatomy Lesson 1

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• This contains facts and information about the world’s most deadly animals on land, water, and air. Some are able to live symbiotically with humans while others are better left in the wild.

### 10 Deadliest Animals on the Planet

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• A brief overview of the Everglades National Park and a look at some of the common, and not so common, bird species found there.

### Birds of the Florida Everglades

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• Look for these silky nests on the Thistle plants about the time that the Thistles are about to flower.When the caterpillars are close to pupating at the end of the fifth instar, they will become suddenly active as they search for a good location to transform into a chrysalis.

### Painted Lady Caterpillars to Butterflies: The Butterfly Lifecycle

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• Wild animals display altruistic behaviour when caring for their own offspring and others. Here are 10 examples that may surprise you. This article showcases altruism from ants to elephants and ringed seals to vampire bats.

### Altruism: How Wild Animals Care for Their Own and Others

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• Known for centuries, these mysterious particles are just now beginning to shed their secrets.

### What Are Cosmic Rays and What Do They Reveal About the Universe?

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• Pandas are interesting and mysterious creatures that have long baffled scientists. There are many things about these endangered animals that many people do not know.

### 10 Things You Probably Didn’t Know About Giant Pandas

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• A detailed article on neutral litmus paper, acids and bases, testing for acid rain, and how to make acids or bases neutral.

### How to Make Your Own Neutral Litmus Paper

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• How many cats fit into the trunk of a Honda Civic....and other fun math problems involving our favorite feline friends

### Cat Mathematics: How Many Cats Fit Into the Trunk of a Honda Civic...

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• Everybody should know how to do these 10 things in case of an emergency.

### 10 Survival Skills That You and Your Children Should Know

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• The semicircular canals are located in the inner ear and are responsible for detecting motion and acceleration. Disorders of the vestibular system include Meniere's Disease and Benign Peroxysmal Positional Vertigo.

### What Are the Semicircular Ear Canals?

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• The terms food chain and web relate to eco-systems. A food or energy pyramid is a diagram containing dietary advice. Here is a short explanation of each one to help avoid confusion.

### Difference Between a Food Chain, Food Web, and Energy Pyramid

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• About 74,000 years ago, a volcanic explosion on the island of Sumatra threw so much ash into the atmosphere that all human life may have been threatened.

### Did the Mount Toba Eruption Almost Wipe Out Humans?

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• Top predators, such as sharks, are vital to the health of all ecosystems, but they are being hunted and killed close to extinction.

### Sharks Are Not That Dangerous

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• Abiotic factors are also known as non living organism or living things. Learn about their part and role in the ecosystem.

### Abiotic Factors: A Component of Ecosystem

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• Speed, distance and time can be calculated using a magic triangle. D (the distance) goes in the top of the triangle, S (speed) goes in the bottom left of the triangle and T (time) goes in the bottom right of the triangle. If you want to calculate...

### Using the Magic Triangle for Speed, Distance and Time (Compound Measures)

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• Narwhals are strange and fascinating Arctic whales. The males—and sometimes the females—have a very long tooth that grows through their lip, forming a tusk.

### The Narwhal: The Fascinating Unicorn Whale of the Arctic Ocean

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• Russia's domesticated silver fox experiment gives genetic clues to the process of animal domestication. Wild foxes from fur farms have been domesticated and made available for the pet trade.

### How the Silver Fox Was Domesticated

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• This article takes a look closer look at the oxidizing type of permanent hair dye and how it works on a scientific level.

### The Science Behind Permanent Hair Coloring

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• Galileo's findings in astronomy shook the world. What did he see?

### What Were Galileo's Contributions to Astronomy?

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• Camel spiders and whip scorpions are fascinating and strange arachnids. Whip scorpions are sometimes called vinegaroons because they release acetic acid when alarmed.

### Camel Spiders, Whip Scorpions, and Vinegaroons: Strange Arachnids

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• Octopuses have fascinating abilities. Some have fins that help them move. Others demonstrate intelligence. The genome of one species is very unusual.

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• The physics of a waterfall are curious. The second law of thermodynamics says that things tend toward a more disordered state. Is the second law saying that destruction (erosion) wins over creation?

### How Does a Waterfall Work, Exactly?

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• The wonderpus octopus is a beautiful animal found around Indonesia and Malaysia. It resembles a mimic octopus, which has an amazing ability to mimic other animals.

### The Wonderpus and Mimic Octopuses of Indonesia and Malaysia

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• A chemistry lab report of the synthesis of cyclohexanone, the Chapman-Stevens Oxidation.

### Organic Chemistry Lab Report—Synthesis of Cyclohexanone: Chapman-Stevens Oxidation

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• Learn how to estimate plywood and wood frames for rectangular columns, square columns, beams, and girders. You will also learn how to estimate metal black sheet forms for circular columns.

### How to Estimate Formworks of Columns, Beams, and Girders

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• The American crow though intelligent, mischievous and resourceful, many people love to hate this bird. Learn why?

### American Crow—The Bird Most People Hate

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• This hub outlines the nitrogen cycle, its importance, and how humans affect it.

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