SciShow
What Makes Fresh Air Fresh?
There's nothing like the crisp fresh air of a spring morning, especially compared to the musty weird air in your smelly old house... But why is the air outside so much more pleasing? And can you make inside-air just as fresh and nice?
Crash Course
Determinism vs Free Will: Crash Course Philosophy
Do we really have free will? Today Hank explores possible answers to that question, explaining theories like libertarian free will and it’s counterpoint, hard determinism.
TED-Ed
TED-Ed: Free falling in outer space - Matt J. Carlson
If you were to orbit the Earth, you'd experience the feeling of free fall, not unlike what your stomach feels before a big dive on a roller coaster. With a little help from Sir Isaac Newton, Matt J. Carlson explains the basic forces...
SciShow
Why Does Skipping Coffee Give Me Headaches?
I normally drink about ten cups of coffee per day but today I decided to cut back and haven't had any caffeine but now my head hurts and I don't know why do YOU know why!?
SciShow Kids
Playtime with Parachutes
From skydiving to recess, parachutes are used for fun and safety. So how do parachutes work to slow down people in the sky, or make a fun bubble to play in? Join Squeaks and Jessi as they show you how forces allow parachutes to do their...
SciShow
The Strange Physics Behind the Smell of Rubber Bands
If you've spent any time trying to explode a pumpkin with rubber bands you know that they have a distinct smell to them when stretched, and you have physics to thank for that.
SciShow
The Real Reason It's So Hard to Lose Weight
You probably know that losing weight is really hard. But it may not be just because of your cheat day frequency; your body actually fights back to make losing weight harder.
SciShow Kids
Why Do We Sweat?
You probably know that sweating is a way for your body to cool off, but how does it help? And why don't other animals, like cats of dogs sweat? Join Jessi and Squeaks to learn all the answers to these questions and more!
SciShow
Why You Probably Can’t Predict Your Own Happiness
Humans generally have a good idea of whether something will make us happy or unhappy, but it turns out we’re not great at knowing exactly how much.
SciShow
Is There Gravity in Space
In a word, "yes" - space is packed with gravity. Hank explains how Isaac Newton described how gravity works, and why even though it seems that things are floating in space, they're still effected by gravity. Every object in the universe...
TED Talks
TED: Why you think you're right -- even if you're wrong | Julia Galef
Perspective is everything, especially when it comes to examining your beliefs. Are you a soldier, prone to defending your viewpoint at all costs -- or a scout, spurred by curiosity? Julia Galef examines the motivations behind these two...
TED-Ed
TED-Ed: How puberty changes your brain | Shannon Odell
While we often talk about puberty's effect on the body, what gets overlooked are the fascinating changes that happen in the brain. Puberty, in fact, begins in the brain, and lasts as long as five years. And during this extended process,...
Crash Course Kids
Over (to) The Moon
Sabrina gets a new set in this episode of Crash Course Kids. Do you want to be an astronaut? Would you like to someday walk on the moon? Well, you better learn a little about gravity so you can escape from Earth and head into space....
SciShow
Why Can Severe Pain Make You Vomit?
Nausea and vomiting are common side effects of severe pain, but why do our bodies do this!?
SciShow
The Truth About the Five Stages of Grief
The Five Stages of Grief show up in media everywhere from The Simpsons to Robot Chicken, but scientists have long been working on better ways to think about grief.
SciShow
IDTIMWYTIM Centrifugal Force
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
SciShow
Everest Doesn’t Always Feel Like the Tallest Mountain
Mount Everest is unquestionably the highest point on earth, but it doesn't always feel that way.
TED Talks
Wolfgang Kessling: How to air-condition outdoor spaces
During the hot summer months, watching an outdoor sports match or concert can be tantamount to baking uncomfortably in the sun -- but it doesn't have to be. At the TEDxSummit in Doha, physicist Wolfgang Kessling reveals sustainable...
SciShow
Why Do You Get Hangry?
Hanger is the grumpiness you feel when you are hungry. We've all been there, but what's the science behind it?
SciShow
Valentine’s Day Is Bad for Relationships (and That’s a Good Thing)
Scientists have found that Valentine's Day can have a negative impact on relationships and the holiday-related obligation to be lovey-dovey may have something to do with it.
TED Talks
TED: What we don't teach kids about sex | Sue Jaye Johnson
As parents, it's our job to teach our kids about sex. But beyond "the talk," which covers biology and reproduction, there's so much more we can say about the human experience of being in our bodies. Introducing "The Talk 2.0," Sue Jaye...
SciShow Kids
Why Do We Get Sick?
Getting a cold or flu can be sort of scary. But sometimes the more you know about something, the less scary it is!
SciShow Kids
Why Should You Wear Sunscreen?
Jessi and Squeaks are ready to go outside, but before they do, Jessi needs to make sure to put on sunscreen so that she doesn't get a sunburn!