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.

- 1 hour ago

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.

- Jan 19, 2021

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.

- Jan 14, 2021

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

- Jan 8, 2021

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.

- Jan 6, 2021

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

- Jan 14, 2021

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.

- Jan 4, 2021

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

- Jan 7, 2021

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

- Jan 7, 2021

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.

- Jan 7, 2021

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

- Jan 7, 2021

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

- Jan 8, 2021

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

- Jan 2, 2021

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.

- Jan 16, 2021

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.

- Jan 9, 2021

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

- Dec 29, 2020

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

- Jan 1, 2021

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.

- Dec 31, 2020

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

- Jan 1, 2021

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.

- Jan 4, 2021

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

- Jan 1, 2021

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

- Jan 7, 2021

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.

- Jan 12, 2021

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

- Dec 15, 2020

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.

- Dec 14, 2020

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

- Jan 6, 2021

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.

- Dec 11, 2020

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".

- Dec 16, 2020

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.

- Dec 7, 2020

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.

- Dec 8, 2020

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

- Dec 4, 2020

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

- Dec 8, 2020

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.

- Dec 2, 2020

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.

- Jan 13, 2021

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

- Dec 16, 2020

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.

- Nov 21, 2020

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

- Nov 21, 2020

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

- Nov 19, 2020

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

- Nov 19, 2020

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.

- Nov 22, 2020

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.

- Nov 28, 2020

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.

- Nov 18, 2020

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

- Nov 13, 2020

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.

- Nov 12, 2020

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.

- Nov 16, 2020

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.

- Nov 11, 2020

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.

- Nov 7, 2020

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

- Nov 8, 2020

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.

- Dec 5, 2020

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

- Jan 22, 2021