TED-Ed
TED-Ed: A day in the life of a Cossack warrior - Alex Gendler
Join the Cossack soldier Stepan as he tries to keep order in the battalion and help his people regain their independence. -- The year is 1676, and a treaty has officially ended hostilities between the Polish-Lithuanian Commonwealth and...
SciShow
Why NASA Uses Satellites and Airplanes to Study Frogs
Frogs falling victim in the past to one of the biggest destroyers of biodiversity didn’t have much hope, that is, until humans thought to get a bird’s eye view.
3Blue1Brown
What is backpropagation really doing? | Deep learning, chapter 3
An overview of backpropagation, the algorithm behind how neural networks learn.
3Blue1Brown
Derivative formulas through geometry | Chapter 3, Essence of calculus
Introduction to the derivatives of polynomial terms and trigonometric functions thought about geometrically and intuitively. The goal is for these formulas to feel like something the student could have discovered, rather than something...
3Blue1Brown
Higher order derivatives: Essence of Calculus - Part 10 of 11
What is the second derivative? Third derivative? How do you think about these?
TED Talks
TED: The taboo secret to better health | Molly Winter
Our poop and pee have superpowers, but for the most part we don't harness them. Molly Winter faces down our squeamishness and asks us to see what goes down the toilet as a resource, one that can help fight climate change, spur innovation...
TED Talks
How web video powers global innovation - Chris Anderson
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. TED's Chris Anderson says the rise of web video is driving a worldwide phenomenon he calls Crowd Accelerated...
Bozeman Science
Multistep Reactions
In this video Paul Andersen explains how an overall chemical reaction is made up of several elementary steps. The stoichiometry of this equation can be predicted but the rate law must be measured. If the elementary steps of the reaction...
TED-Ed
TED-ED: How small are we in the scale of the universe? - Alex Hofeldt
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky _ what, if anything, was going to show up? But what came back was nothing...
PBS
Supersymmetric Particle Found?
With the large hadron collider running out of places to look for clues to a deeper theory of physics, we need a bigger particle accelerator. We have one - the galaxy.
TED Talks
TED: How I turned a deadly plant into a thriving business | Achenyo Idachaba
The water hyacinth may look like a harmless, even beautiful flowering plant -- but it's actually an invasive aquatic weed that clogs waterways, stopping trade, interrupting schooling and disrupting everyday life. In this scourge, green...
TED-Ed
TED-Ed: How to fossilizeyourself - Phoebe A. Cohen
You can aspire to great things in life, but how about in death? Could you be one of the world's greatest fossils many years from now? To ensure being found by a future paleontologist, you'll need to die in a highly specific way (think...
TED Talks
Henry Markram: A brain in a supercomputer
Henry Markram says the mysteries of the mind can be solved -- soon. Mental illness, memory, perception: they're made of neurons and electric signals, and he plans to find them with a supercomputer that models all the brain's...
TED Talks
Chris Domas: The 1s and 0s behind cyber warfare
Chris Domas is a cybersecurity researcher, operating on what's become a new front of war, "cyber." In this engaging talk, he shows how researchers use pattern recognition and reverse engineering (and pull a few all-nighters) to...
3Blue1Brown
Vectors, what even are they? Essence of Linear Algebra - Part 1 of 15
What is a vector? Is it an arrow in space? A list of numbers?
Crash Course Kids
The Engineering Process
So, how do we go about being engineers? In this episode of Crash Course Kids, Sabrina talks to us about the Engineering Process and why we should do things in order, as well as many of the questions we should ask along the way. This...
TED Talks
TED: A leap from the edge of space | Steve Truglia
At his day job, Steve Truglia flips cars, walks through fire and falls out of buildings -- pushing technology to make stunts bigger, safer, more awesome. He talks us through his next stunt: the highest jump ever attempted, from the very...
SciShow
The Ingredients for Life in Space
Hank explains the latest developments in space research and the search for life, including the discovery that amino acids may be more common than we thought throughout the solar system, and the latest findings from the Mars Curiosity rover.
SciShow
We Just Took the First Image of a Baby Planet!
SPHERE took a photo of a baby planet and the origin of the asteroid belt may be less mysterious than we thought.
TED Talks
Theo Jansen: My creations, a new form of life
Artist Theo Jansen demonstrates the amazingly lifelike kinetic sculptures he builds from plastic tubes and lemonade bottles. His creatures are designed to move -- and even survive -- on their own.
TED Talks
John Q. Walker: Great piano performances, recreated
Imagine hearing great, departed pianists play again today, just as they would in person. John Q. Walker demonstrates how recordings can be analyzed for precise keystrokes and pedal motions, then played back on computer-controlled grand...
TED Talks
TED: The walk from "no" to "yes" | William Ury
William Ury, author of "Getting to Yes," offers an elegant, simple (but not easy) way to create agreement in even the most difficult situations -- from family conflict to, perhaps, the Middle East.
Amoeba Sisters
Monohybrids and the Punnett Square Guinea Pigs
Learn how to use a Punnett square to solve a Mendelian monohybrid cross with one of the Amoeba Sister's favorite classroom pets: hairless guinea pigs.
SciShow
Skateboarding Science: Master the Ollie!
If most people got on a skateboard, they would roll forward slowly for a few feet, then fall down and break their wrists. But there are a proud few who can do some pretty amazing tricks on a board, and they use physics to pull them off....