Crash Course
Enthalpy: Crash Course Chemistry
Energy is like the bestest best friend ever and yet, most of the time we take it for granted. Hank feels bad for our friend and wants us to learn more about it so that we can understand what it's trying to tell us - like that any bond...
SciShow
The Supernova of 1054, Our Very Special Guest Star
All of humanity likely saw it, a brilliant supernova that lit up the daytime sky in 1054. But 960 years later, there’s still a lot we dont quite understand about the famous celestial phenomenon.
SciShow
The World's First Human-Made Nuclear Reactor
Today on SciShow, Hank brings us a little science history, telling us the tale of the world's first human-made nuclear reactor, which was built by a team of scientists and students led by Enrico Fermi in a converted squash court under a...
Bozeman Science
Photons
In this video Paul Andersen explains how light travels in photons which can be described as both particles and waves. Einstein showed that photons can be described as particles using the photoelectric effect to show that the energy of a...
SciShow
Does Radiation Make Air Travel Dangerous?
Radiation is all around us, and when you travel by plane, you're exposed to cosmic radiation. So what does this mean for our health? Does air travel expose us to unsafe radiation levels? Check out this episode to see how flying among...
TED Talks
Elon Musk: The mind behind Tesla, SpaceX, SolarCity ...
Entrepreneur Elon Musk is a man with many plans. The founder of PayPal, Tesla Motors and SpaceX sits down with TED curator Chris Anderson to share details about his visionary projects, which include a mass-marketed electric car, a solar...
MinutePhysics
Why Do Compressed Air Cans Get Cold?
This video is about compressed air cans (aka gas dusters) and why they get cold when you spray them. They cool off because the refrigerant inside (1,1-difluoroethane) is under pressure and boils off when the pressure lowers, and energy...
Be Smart
El Nino and Why We Can't Predict the Weather
What is El Nino? Why can't we predict the weather? Just a few slight changes in global climate patterns can drastically shift the weather. Thanks to chaos theory, even our smartest meteorologists can't predict weather correctly.
TED-Ed
TED-Ed: How do vitamins work? - Ginnie Trinh Nguyen
Vitamins are the building blocks that keep our bodies running; they help build muscle and bone, capture energy, heal wounds and more. But if our body doesn't create vitamins, how do they get into our system? Ginnie Trinh Nguyen describes...
SciShow
3 Amazing Photosynthetic Animals
Hank's love affair with plants takes a slight hit now that he's learned about several animal species that can photosynthesize. Fortunately, he's excited enough about these animals to share them with all of us! Let SciShow introduce you...
SciShow
Sun VS. Atomic Bomb
Hank puts the immense power of the sun into perspective through comparison with the most powerful nuclear bomb ever detonated.
TED-Ed
TED-ED: Why are blue whales so enormous? - Asha de Vos
Blue whales are the largest animals on the planet, but what helps them grow to the length of a basketball court? Asha de Vos explains why the size of krill make them the ideal food for the blue whale -- it's as if the blue whale was made...
Bozeman Science
Chemical Change
In this video Paul Andersen explains how chemical differs from physical change. In the laboratory macroscopic observations are used to infer changes at the particulate level. Evidence for chemical change include gas production, change in...
TED Talks
TED: 3 ways to be a better ally in the workplace | Melinda Epler
We're taught to believe that hard work and dedication will lead to success, but that's not always the case. Gender, race, ethnicity, religion, disability, sexual orientation are among the many factors that affect our chances, says writer...
TED Talks
Marjan van Aubel: The beautiful future of solar power
The Sun delivers more energy to Earth in one hour than all of humanity uses in an entire year. How can we make this power more accessible to everyone, everywhere? Solar designer Marjan van Aubel shows how she's turning everyday objects...
TED-Ed
TED-Ed: Activation energy: Kickstarting chemical reactions - Vance Kite
Chemical reactions are constantly happening in your body -- even at this very moment. But what catalyzes these important reactions? Vance Kite explains how enzymes assist the process, while providing a light-hearted way to remember how...
SciShow
Quantum Tunneling Takes a Surprisingly Long Time
Quantum tunneling happens when a particle seemingly teleports across a barrier. But despite how instantaneous this event sounds, recent research suggests that it doesn’t happen nearly as fast as you might think.
SciShow
No Ears, No Problem: Frogs Can Hear With Their Lungs
If you’ve ever looked at a frog’s head, you might have noticed that they don’t have external ears. So How do they hear?
SciShow
Most Metabolism Boosters Are BS
Despite some bold claims, most supplements can’t really "boost" your metabolism, and the actual changes we can make to it are pretty limited.
Crash Course Kids
Here Comes the Sun
Every hear of 'Sol'? Sure you have! It's our Sun! It sits at the center of our 8 planet solar system, providing us with heat and light. But how does that energy get to us? In this episode of Crash Course Kids, Sabrina chats about the...
Bozeman Science
Potential Energy
In this video Paul Andersen explains how conservative forces can be used to store potential energy in an object or a system. The work done is equal to the amount of potential energy in the object. The following conservative forces are...
TED-Ed
TED-Ed: The chemistry of cold packs - John Pollard
If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...
SciShow
How Do Wetsuits Keep You Warm?
Snorkelers, surfers, divers. They all use them… wetsuits! So how do they work to keep you warm? It turns out layers of materials, and water itself!
SciShow
Why Doesn't Your Sphincter Get Tired?
Keeping a muscle clenched usually tires it out eventually, but that’s not the case for sphincters, which do things a little differently.