Crash Course
Population Genetics: When Darwin Met Mendel - Crash Course Biology
Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.
SciShow
This Star Might Be Hiding Undiscovered Elements - Przybylski’s Star
Przybylski’s Star has been puzzling astronomers for decades, and it might contain elements or isotopes that scientists have never seen before!
PBS
The Andromeda-Milky Way Collision
The Andromeda galaxy is heading straight toward our own Milky Way. The two galaxies will inevitably collide. Will that be the very last night sky our solar system witnesses?
TED Talks
Amy Tan: Where does creativity hide?
Novelist Amy Tan digs deep into the creative process, looking for hints of how hers evolved.
SciShow
How Do You Define A Disorder?
The tremendous complexity of the human brain makes it difficult for psychologists to pin down exactly how and why things go wrong, so how do we define and diagnose disorders?
MinutePhysics
Misconceptions Footnote †: Randomness and Feedback
Footnote to the main video here: https://youtu.be/HUti6vGctQM Feedback loops and spurious correlations! REFERENCES: Spurious correlations: http://www.tylervigen.com/spurious-correlations Loopy by Nicky Case: http://ncase.me/loopy/...
TED-Ed
TED-Ed: How two decisions led me to Olympic glory - Steve Mesler
From setback and injury to an Olympic gold medal -- see how confidently making decisions led one bobsledder down an unexpected pathway to victory.
TED-Ed
TED-ED: How bones make blood - Melody Smith
Bones might seem rock-solid, but they’re actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with...
TED-Ed
TED-ED: Can you solve the false positive riddle? - Alex Gendler
Mining unobtainium is hard work _ the rare mineral appears in only 1% of rocks in the mine. But your friend Tricky Joe has something up his sleeve. The unobtainium detector he's been perfecting for months is finally ready, and it returns...
SciShow
6 Common Misconceptions About Cancer
Today we take a look at six misconceptions about cancer that seem plausible, but just don't hold up. Chapters SHARKS DON'T GET CANCER & TAKING SHARK CARTILAGE SUPPLEMENTS WILL CURE OR PREVENT CANCER 0:45 IF YOU HAVE CANCER YOU SHOULD...
TED-Ed
TED-Ed: Sex determination: More complicated than you thought - Aaron Reedy
From something as small and complex as a chromosome to something as seemingly simple as the weather, sex determination systems vary significantly across the animal kingdom. Biologist and teacher Aaron Reedy shows us the amazing...
TED-Ed
TED-ED: What is entropy? - Jeff Phillips
There's a concept that's crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It's entropy, and it's...
Crash Course
When Predictions Fail - Crash Course Statistics
Today we’re going to talk about why many predictions fail - specifically we’ll take a look at the 2008 financial crisis, the 2016 U.S. presidential election, and earthquake prediction in general. From inaccurate or just too little data...
Bozeman Science
Genetic Drift
Paul Andersen describes genetic drift as a mechanism for evolutionary change. A population genetics simulator is used to show the importance of large population size in neutralizing random change. The near extinction of the northern...
Amoeba Sisters
Genetic Drift
Discover what happens when random events meet allele frequencies: genetic drift! This Amoeba Sisters video also discusses the bottleneck and founder effect as well as contrasts genetic drift with natural selection. Table of Contents:...
TED-Ed
TED-ED: The surprising reasons animals play dead - Tierney Thys
From lemurs to lizards, ants to amphibians, sharks to chickens, hundreds of animals "play dead" as a survival tactic. But how and why do animals do this? Tierney Thys explains how this curious behavior, known as tonic immobility or TI...
SciShow Kids
Why Do We Need Sleep?
Jessi stayed up too late, so she's feeling really tired. Luckily, she isn't too tired to tell you all about what happens when we sleep and why we feel so terrible when we don't get enough sleep!
Crash Course
Probability Part 2 Updating Your Beliefs with Bayes - Crash Course Statistics
Today we're going to introduce bayesian statistics and discuss how this new approach to statistics has revolutionized the field from artificial intelligence and clinical trials to how your computer filters spam! We'll also discuss the...
TED-Ed
TED-Ed: What can Schrodinger's cat teach us about quantum mechanics? - Josh Samani
The classical physics that we encounter in our everyday, macroscopic world is very different from the quantum physics that governs systems on a much smaller scale (like atoms). One great example of quantum physics' weirdness can be shown...
TED Talks
TED: The intended consequences of helping nature thrive | Ryan Phelan
From a special black-footed ferret to coral that can withstand warming waters, genetic rescue efforts that use genomics and synthetic biology are helping nature thrive. But despite the huge successes of this kind of intervention,...
TED-Ed
TED-Ed: Why is Mount Everest so tall? - Michele Koppes
At 8,850 meters above sea level, Qomolangma, also known as Mount Everest, has the highest altitude on the planet. But how did this towering formation get so tall? Michele Koppes peers deep into our planet's crust, where continental...
Crash Course
Ancient Games: Crash Course Games
From the ancient Egyptian game of Senet to the Aztec's Patolli, games have been played since the beginning of civilization. Today, your host Andre Meadows is going to take a look at a few of these games, including some that are actually...