Hi, what do you want to do?
Curated Video
Solving for X in Right Triangles using the Sine Ratio
In this video, we learn about solving for X in triangles using the sine ratio. By comparing the ratios of the length of the side opposite an acute angle to the length of the hypotenuse in right triangles, we can determine the value of X....
Physics Girl
Friction - Physics 101 / AP Physics 1 Review with Dianna Cowern
Lesson 6 (Friction) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem1:...
Curated Video
What is Spanish Flu and how does it spread?
The Spanish Flu was a terrible illness that spread across Europe and was brought to Britain by returning soldiers and ships bringing food to feed the starving nation. It was a pandemic that gripped the country and would end up killing...
Bozeman Science
Cooperative Interactions
Paul Andersen emphasizes the importance of cooperation in living systems. He starts with a brief description of game theory and why countries at peace do better over the long term. He then explains how microscopic cells cooperate in...
Science ABC
Gravitational Lensing: What It Is And How It Is Helping Us Discover New Galaxies
Gravitational lensing occurs when a huge amount of matter, like a star, galaxy, or cluster of galaxies, creates a powerful gravitational field around it, strong enough to bend the light coming from distant galaxies (behind...
Catalyst University
Postulates of Quantum Mechanics: Hermitian Operators 2
Postulates of Quantum Mechanics: Hermitian Operators 2
Nemours KidsHealth
How the Body Works—Teeth
In the setting of a variety show, Nurb sings onstage about human teeth. He goes through the progression of how they grow, when they are lost, and when wisdom teeth come in. He chirps about the different types of teeth and what roles they...
Be Smart
How Your Body Knows Left From Right
While our outsides are mostly symmetrical, our internal organs aren't. Why would this be the case? Are other animals the same? What determines if your organs are on the "correct" side or backwards? Here's a video that answers these...
SciShow
Why Do We Jump in Our Sleep?
A hypnagogic jerk, or hypnic jerk, is when you startle yourself awake just as you are drifting off to sleep. The video describes what a hypnic jerk is, how common they are, and who typically experience them. Viewers are offered two...