In this video Paul Andersen explains how light can be absorbed, reflected, or transmitted as it moves from one medium to another. The reflection of different wavelengths creates the perceived color of an object. Absorbed light is...

In this video Paul Andersen explains how a net torque acting on an object will create rotational motion. This motion can be described by the angular displacement, angular velocity, and angular acceleration. The linear velocity can be...

In this episode of Crash Course Physics, Megneto helps Shini explain what induction is, how it works, and why magnetism is so seemingly complicated.

The useful glare-blocking properties of polarized sunglasses are well-known to just about anyone who goes outside. What isn't so well-known is how they reduce glare in the first place. That answer is deceptively complicated!

Some plants have very unique ways to disperse their seeds. Olivia introduces 5 of the most bizarre seeds in the world!

In this video Paul Andersen explains how light that is perfectly reflected creates specular reflection. The angle of the incident ray is equal to the angle of the reflected ray. Specular reflection is also known as mirror-like...

In this video Paul Andersen explains how light can be refracted, or bent, as it moves from one medium to another. The amount of refraction is determined by the angle of incidence and the index of refraction. Snell's Law can be used to...

People have been exploring the oceans since prehistoric times, way before they had GPS to help them figure out where they were. Here are 6 ingenious ways our ancestors navigated the oceans.

Take a look... A VERY special guest, LeVar Burton, explains how Double Rainbows are formed.

SciShow explains how three important ingredients -- sunlight, water, and you -- interact to create the illusion of a rainbow. The colorful details are inside!

Ever wonder why the earth has different seasons? Michael Aranda will explain in this episode of SciShow Quick Questions.

In this video Paul Andersen explains how electromagnetic induction occurs when the magnetic flux of an object changes. The magnetic flux is product of the surface area perpendicular to the magnetic field and the magnetic field strength....

A bit of the history behind how we came to use the symbol "pi" to represent what it does today, and how Euler used it to refer to several different circle constants.

After a friend of mine got a tattoo with a representation of the cosecant function, it got me thinking about how there's another sense in which this function is a tattoo on math, so to speak.

In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.

In this short video we will answer a standardized math test question using similar triangles to find a unknown angle. We will begin by reviewing the definition of similar figures. We will identify the corresponding angles and use the...

In this shorts video we will answer a standardized math test question using similarity. We will begin by identifying key information given in the problem and by defining similar figures. We will use this definition to identify the...

In this short math video will find the measure of an angle of a triangle inscribed in a circle. We will review that if a triangle is inscribed in a circle and one side of the triangle is the diameter of the circle, then the angle...

In this math video, we the area of a sector of a circle step by step — aligned with Common Core Standard G-C.B.5! 🔵✏️
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We’re given a circle with a shaded sector, the radius, and asked to find the area of the shaded...

This video explores the impact of different camera shots and angles on visual storytelling, emphasizing how they can convey perspective, story, and emotion. The narrator discusses two main ways shots can produce effects: focusing on the...

A video entitled "Similar by AA Criterion" which clarifies that if two pairs of corresponding angles are congruent, then the triangles are similar.

A video entitled "Pythagorean Theorem is Useful" which talks about right triangle situations where it's appropriate to use the Pythagorean theorem.

A video entitled "Angle Problems" which shows how to find missing measures in the case of intersecting lines.

A video entitled "Use Pythagorean Theorem" which gives real-life situations where the Pythagorean theorem can apply.