TED Talks
TED: A rare galaxy that's challenging our understanding of the universe | Burcin Mutlu-Pakdil
What's it like to discover a galaxy -- and have it named after you? Astrophysicist and TED Fellow Burcin Mutlu-Pakdil lets us know in this quick talk about her team's surprising discovery of a mysterious new galaxy type.
SciShow
Photosynthesis WITHOUT THE SUN
Plants need light to survive. But apparently, that doesn't have to be sunlight.
SciShow
How a Sick Chimp Led to a Global Pandemic: The Rise of HIV
In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated.
Crash Course
Unsupervised Machine Learning - Crash Course Statistics
Today we're going to discuss how machine learning can be used to group and label information even if those labels don't exist. We'll explore two types of clustering used in Unsupervised Machine Learning: k-means and Hierarchical...
SciShow
What Makes Satisfying Videos Satisfying?
You might have stumbled onto those videos of people cutting sand for 10 minutes or of machines doing a repetitive task and felt an odd sense of satisfaction while watching them. Today, we look at the psychology behind those "oddly...
MinuteEarth
How To Date A Planet
How do we know how old the Earth is? Learn how we date rocks, the moon, and planets.
SciShow
Creating a Template for Habitable Exoplanets
We've found thousands of exoplanets over the years, but if we're going to find one that can sustain life, we need to take a look at the one planet we know that can, Earth.
SciShow
Misattribution: How We Mistake Fear for Love
Some emotions can feel so similar that you might mix them up and pick the wrong emotion.
SciShow
Buran: The Space Shuttle That Almost Was
Did you know the Soviet Union had its own Space Shuttle? Learn all about the Buran, what happened to it, and what innovations set it apart from its NASA counterpart.
SciShow
Why Do We Keep Needing New "G"s?
What’s with all the "G"s and why do we keep having to develop new ones to use our phones in this technology.
Crash Course
Alkyne Reactions Tautomerization - Crash Course Organic Chemistry
Carbon-carbon double bonds are pretty common in nature, but triple bonds between carbons, called alkynes, are not. When alkynes do pop up in nature, it’s usually in a compound that’s toxic to humans, however, we can synthesize alkynes...
TED Talks
Jared Ficklin: New ways to see music (with color! and fire!)
Designer Jared Ficklin creates wild visualizations that let us see music, using color and even fire (a first for the TED stage) to analyze how sound makes us feel. He takes a brief digression to analyze the sound of a skatepark -- and...
SciShow
5 Mysteries Science Created... and Then Solved
Asking questions almost always leads to finding answers, but those answers will often pose even more questions. Here are five mysteries started and later solved by science.
3Blue1Brown
Three-dimensional linear transformations | Essence of linear algebra, footnote
How to think of 3x3 matrices as transforming 3d space
SciShow
These Bats Make Tiny Snow Caves
One might not think that snow could help anything stay warm through a harsh winter, but these tiny bats have found a way to utilize the insulation provided by the snow: they make little forts to wait out the winter.
TED-Ed
TED-Ed: Pavlovian reactions aren't just for dogs - Benjamin N. Witts
Dr. Ivan Pavlov's groundbreaking work revealed that a dog will respond to neutral stimuli, such as a bell, in the same way that it will respond to, say, mouth-watering food. This research is widely applicable beyond a dog's salivation....
TED-Ed
TED-Ed: The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair
Physicist Werner Heisenberg said, "When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first." As difficult as turbulence is to understand...
TED Talks
TED: See how the rest of the world lives, organized by income | Anna Rosling Rönnlund
What does it look like when someone in Sweden brushes their teeth or when someone in Rwanda makes their bed? Anna Rosling Rönnlund wants all of us to find out, so she sent photographers to 264 homes in 50 countries (and counting!) to...
3Blue1Brown
Three-dimensional linear transformations | Essence of linear algebra, chapter 5
How to think of 3x3 matrices as transforming 3d space
3Blue1Brown
Binary, Hanoi, and Sierpinski - Part 2 of 2
How counting in Ternary can solve a variant of the Tower's of Hanoi puzzle, and how this gives rise to a beautiful connection to Sierpinski's triangle.
SciShow
What This Video Will Do to Your Friends' Brains
The way your brain reacts to stimuli might tell us more about who you're friends with, and swatting at mosquitoes might one day bring us positive results.
SciShow
Astronomers Just Discovered the Biggest Explosion Ever
Scientists just discovered the largest explosion ever detected, and it's thanks to the collaborative efforts of scientists from all over the world.
SciShow
Can You Be Allergic To Sunlight?
For you, going outside might mean a sunburn if you're out there too long without enough sunscreen, but for some people, any sun exposure can lead to hives and rashes within minutes!
3Blue1Brown
But why is a sphere's surface area four times its shadow?
Two proofs for the surface area of a sphere