Crash Course
Remembering and Forgetting - Crash Course Psychology
In this REALLY IMPORTANT EPISODE of Crash Course Psychology, Hank talks about how we remember and forget things, why our memories are fallible, and the dangers that can pose. -- Table of Contents How Memories are Stored 01:12:05...
SciShow
Our Boats Are Changing the Tide
We often think of the ocean’s tide as a simple rise and fall, connected to the motion of the Moon. But on any given shore, the reality is much more complex and oceanic scientists have realized recently that there’s another, more...
SciShow
That Time the US Government Poisoned Alcohol
The alcohol we drink is just one particular kind of alcohol: ethanol. The others can be a lot more dangerous, and in the 1920s, the US government made a really dangerous cocktail.
SciShow
What Happens If You're Struck By Lightning?
The chances of you being hit by lightning are small by comparison, but it does happen! Hank will go through what ultimately happens when you are struck by lightning because chances are you will survive to tell it to your friends.
SciShow
Do Essential Oils Really Work? And Why?
What does the research say about what essential oils can actually do?
Bozeman Science
Thinking in Causation - Level 5 - Probability and Prediction
In this video Paul Andersen shows conceptual thinking in a mini-lesson on probability and prediction. TERMS: Cause - a thing that gives rise to an event Effect - an event Relationship- interconnection between parts of a system...
SciShow
Its True The Sun Really Does Flash Green
The mythical green flash at sunset isn't actually a myth! Stefan explains why it happens, and how you can see it.
3Blue1Brown
Matrix multiplication as composition | Essence of linear algebra, chapter 4
How to think about matrix multiplication visually as successively applying two different linear transformations.
Crash Course
Astrophysics and Cosmology: Crash Course Physics
It's time for the end. At least the end of our first series on Physics here at Crash Course. In this episode of Crash Course Physics, Shini sits down to talk about Astrophysics and Cosmology. By using what we've learned this year, we can...
SciShow
Are Artificial Sweeteners Bad For You?
While scientists have debunked the notion that putting artificial sweeteners in your coffee will give you cancer, that doesn’t necessarily mean you should go hog wild with them.
SciShow
What Will Happen to The ISS?
After more than two decades buzzing around above our heads, the life of the ISS will soon be coming to a close. But what does that actually look like? And what does it mean for the future of space experimentation?
3Blue1Brown
But WHY is a sphere's surface area four times its shadow?
Two proofs for the surface area of a sphere
SciShow
Should You Talk to Your Plants to Help Them Grow?
You may have heard that plants do better with verbal encouragement, but is there any evidence supporting this gardening tale?
SciShow
There’s a Birth Control for Stars
Black holes are already pretty extreme, but some stand out among their peers, driving cosmic engines that outshines the rest of the galaxy and even serving as birth control for stars!
SciShow
Can Houseplants Improve Air Quality?
We all have that coworker who insists that the houseplants on their desks are improving the office air quality, but is there any truth to that?
SciShow
The Times and Troubles of the Scientific Method
UPDATE: We got a couple of things wrong when it comes to gravity (particularly that it has nothing to do with photons). Science is working tirelessly night and day to disprove its own theories about how the universe works (or at least,...
SciShow
The Climate Crisis Is Changing the Circle of Life
When you think about the impact of climate change on the circle of life, you likely picture polar bears or Bengal tigers struggling in new conditions. But the impacts on the world go all the way down to the tiniest creatures who do some...
SciShow
Placebos & Nocebos: How Your Brain Heals and Hurts You
You've probably heard how some drugs and treatments make people feel better, even when they turn out to be fake. That's the placebo effect, but how does it work? And could the same effect backfire, causing your brain to make you feel...
SciShow
Weird Places Europe's Dancing, Crooked Forests
Hank takes you through the weird, twisted forests of Russia and Eastern Europe, where trees grow at odd angles. What caused trees to grow into big wooden pretzels? Was it wind? Manipulation by woodworkers? Nazis, maybe? See for yourself...
Crash Course
Degrees of Freedom and Effect Sizes - Crash Course Statistics
Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically...
SciShow
Do You Really Sing Better In The Shower?
Singing in the shower seems to sound better, but what is actually happening to the sound waves in that soapy, tiled room?
TED Talks
Don Levy: A cinematic journey through visual effects
It's been 110 years since Georges Méliès sent a spaceship slamming into the eye of the man on the moon. So how far have visual effects come since then? Working closely with the Academy of Motion Picture Arts and Sciences, Don Levy takes...
SciShow
What Is Neurofeedback Therapy?
Neurofeedback therapy claims to help you change behaviors by monitoring your brain waves - but how does that actually work? And what does the science behind it look like?