STEM

A how-to guide for adding to your PATH environment variable in the Windows 10 operating system. Python is used as an example throughout this tutorial, but it can easily be adapted to work for any application you're looking to add to your PATH variable.

This article has what you need to know about the state insect of Arkansas, the beautiful Diana fritillary butterfly (Speyeria diana), including its food plants and early forms.

The slope of a line is the direction in which the line goes. You can calculate it as the ratio between horizontal change and vertical change, or you can use the derivative.

Sexism in science has a long history and it’s often exemplified in the failure to award Nobel Prizes to some highly accomplished women.

Finding the intersection is something that comes up a lot in math. To do this you need to set the expressions equal and solve for x. Then you can determine y by filling in the x you found.

This article discusses the migration, feeding peculiarities, and lifecycle of the beautiful monarch butterfly.

Llamas produce tiny versions of antibodies known as nanobodies. These might be helpful in dealing with the SARS-CoV-2 virus that causes the COVID-19 infection.

Short answer: maybe. Long answer: well, it's complicated. . .

Flavors imply taste and satisfaction. Well, neutrinos are hardly either of those, but the mechanisms behind the different types can yield many surprising facts.

The variance of a probability distribution is a measure to quantify the spread of a distribution. If the variance is low, all outcomes are close to the mean, while distributions with a high variance have outcomes that could be far away from the mean.

This article has what you need to know about the beautiful tiger swallowtail butterfly (Pterourus glaucus), including its food plants and early forms.

The mean is the most important measure of probability distributions. It tells a lot about the likelihood that certain events will happen.

This article has what you need to know about the amazing Carolina mantis, including its predatory habits and natural history.

If you were asked to add together all of the numbers from 1 to 100, what would you do? Would you go through each number, adding to your total as you went or is there a quicker way? Find out in this article.

A CSS reset allows you set the properties for certain HTML tags to zero to override the web browser's default style. How can you implement the best CSS reset? I'll teach you here.

This article has what you need to know about the State insect of Georgia, the fascinating western (AKA European) honeybee.

This article has what you need to know about the beautiful vivid dancer damselfly, including its habits and early forms.

The Pythagorean theorem is one of the most well-known theorems in math. It describes the length of the hypothenuse of a right triangle using the lengths of the other sides.

This article has what you need to know about the beautiful California dogface butterfly, including its food plants and early forms.

This article has what you need to know about the beautiful monarch butterfly, including its food plants and early forms. This is one of Alabama's two state insects.

This article has what you need to know about the beautiful four-spotted chaser dragonfly, including its habits and early forms.

This article has what you need to know about the beautiful tiger swallowtail butterfly (Pterourus glaucus), including its food plants and early forms.

This educational article introduces young people to the biology of amphibians. It describes the differences between frogs, toads, salamanders, newts, and others and explains the amphibian life cycle in clear, easy-to-understand language.

Corals argue and smootch. They grow taller than buildings and follow fish. They even beat up bullies with bodyguards.

Organoids are small and simplified versions of organs that are made from stem cells. They may enable us to create new medical treatments and better understand how organs work.

A right triangle is a triangle in which one angle is right, meaning it is exactly 90°. For these triangles, it is possible to calculate the other angles using goniometric functions as the sine, cosine and tangent.

The inverse function of a function f(x) tells you which x you need to fill in in f to get a certain outcome. It therefore can be very useful in practice.

The limit of a function describes how the function behaves in the neighborhood of some value. Often, it is interesting to look at the limit for x to infinity. This describes what happens when you would follow the line of the graph of the function until "the end".

The tongue-eating louse is a parasitic isopod. It destroys the tongue of a fish and lives in the space that's created, where it feeds on blood and mucus from its host.

Finding the minimum or maximum of a function is very important in mathematics. It can help you finding the optimal solution to a problem. Often you want some quantity to be maximal, such as profits or capacity. Also minima can be very useful, for example, when looking at a cost function.

Such a common experience, and yet so many surprising facts about it may bring a ringing clarity to your knowledge of physics.

How can little beads of liquids lead to so many fascinating routes?

Leptin is a hormone with many effects. It can reduce appetite when necessary and help people with lipodystrophy. Exploring its behavior is important but challenging.

Finding the derivative is something that comes up a lot in maths, but what is it actually? The derivative tells you what the slope of the function is in a certain point. The derivative of a function can be calculated using the definition, but mostly it is done by using standard rules.

Zebras are living fossils that refuse the saddle and mysteriously avoid other species of zebra. Learn more about these enigmatic animals here.

The Japanese kobudai and the California sheephead are interesting fish in the wrasse family. The animals can change from a female to a male during their lifetime.

This article can help you learn how to find the derivative of constants in various forms.

In this article, you can learn how to use the power-reducing formulas in simplifying and evaluating trigonometric functions of different powers.

This article will help you learn to evaluate limits by solving various problems in Calculus that require applying the limit laws.

The theorem of Pythagoras is well known, showing the relationship between the areas of squares on the sides of right-angled triangles. However, it may not be realised that the theorem can also be used to show relationships between shapes other than squares.

Quadratic inequalities is a topic that comes up a lot in various mathematical problems. To solve them, one has to first solve the equality and then determine the solution by looking at the graph.

In this article, you can learn the concept of the Same-Side Interior Angles Theorem in Geometry through solving various examples provided. The article also includes the Converse of the Same-Side Interior Angles Theorem and its proof.

Linear equations pop up everywhere and solving them is one of the most basic tools in mathematics.

Learn to solve different kinds of related rates problems in Calculus. This article is a full guide that shows the step-by-step procedure of solving problems involving related/associated rates.

Every commercial aircraft is struck by lightning about once per year on average, but they have a number of features designed to keep passengers safe, including lightning diverters, metal bars, advanced composite films, and expanded metals.

Cusk eels belong to an interesting family of fish called the Ophidiidae. Some species have unusual features. Many live in deep water and have intriguing lives.

Learn to use Descartes' Rule of Signs in determining the number of positive and negative zeros of a polynomial equation. This article is a full guide that defines Descartes' Rule of Signs, the procedure on how to use it, and detailed examples and solutions.

Here is a list of the top 10 meteorite strikes to ever crash into Earth.

This article is a full guide in solving problems involving the use of the factor theorem. It includes the definition, proof, examples and solutions about the factor theorem.

Chirality is a fundamental property of particle physics, and yet a common enough concept. It's all about the symmetry, people.