SciShow
3 of the Biggest Experiments Ever
Whether it's robots under the sea, wave detectors in space, or star-power on land, this episode has big experiments covered.
Bozeman Science
E=mc2
In this video Paul Andersen explains how the conservation of mass was replaced with the conservation of mass-energy when it was determined that they are equivalent. This famous equation not only show the mass-energy equivalence but can...
Bozeman Science
Internal Energy
In this video Paul Andersen explains how the internal energy of a system can change as the internal structure of the system changes. An object model will not be able to account for the restoring forces and so a system model must be used....
SciShow
Weird Places: The Glowing Blue Lava at Kawah Ijen
Maybe you've seen pictures of glowing blue lava flows and dismissed them as Photoshop trickery. Healthy skepticism is good, but there really is a volcano in Indonesia where a unique fluke of chemistry creates an eerie blue glow.
Crash Course
Metabolism & Nutrition, part 2: Crash Course A&P
If you're like us, you love the sound of a brunch buffet. But not everything you eat at that glorious buffet is going to be turned into energy. Your body has to work with different forms of food in different ways. In this episode of...
Bozeman Science
Thinking in Systems - Level 3 - Inputs, Processes and Outputs
In this video Paul Andersen shows conceptual thinking in a mini-lesson on inputs, processes and outputs in a system. TERMS: System models - a representation of a system Interactions - reciprocal (two-way) action or influence Inputs -...
SciShow
This Reaction Could Let Us Live on Mars
There is a chemical reaction discovered a century ago that could be the key to creating everything from fuel to shelter on Mars!
TED Talks
Tim Flannery: Can seaweed help curb global warming?
It's time for planetary-scale interventions to combat climate change -- and environmentalist Tim Flannery thinks seaweed can help. In a bold talk, he shares the epic carbon-capturing potential of seaweed, explaining how oceangoing...
TED Talks
TED: 5 transformational policies for a prosperous and sustainable world | Johan Rockstrom
In a talk about how we can build a robust future without wrecking the planet, sustainability expert Johan Rockstrom debuts the Earth3 model -- a new methodology that combines the UN Sustainable Development Goals with the nine planetary...
SciShow
Why Can Blu-rays Hold More Than DVDs?
Blu-rays can hold about ten times more than DVDs because Blu-ray players use special blue lasers to read them. But it took a while for scientists to figure out how to make those lasers work.
SciShow
Extreme Hypothetical Stars
You might think we've already found every kind of star by now, but astronomers think there are more that should hypothetically exist!
SciShow
From Thunderstorms to Black Holes: 4 Natural Particle Accelerators
We've been making particle accelerators for more than a century and have accelerated particles to more than 99.9999% the speed of light. But our accelerators are nothing compared to some of the ones we've found in nature!
SciShow
These Plants Are the Same Species
Sometimes the males and females of a species can look really different from each other. This is pretty common in animals (think peacocks), but there are some plant species out there with extreme sexual dimorphism! And now scientists...
SciShow
5 Weird Things We Believe About Death
There’s a lot we just don’t know about death, but even among the things we think we do know, there are a lot of misconceptions. Here are 5 weird things we believe about death! Chapters SWIM CRAMPS 1 0:39 GUNSHOT WOUND TO THE LEG 2:36...
TED Talks
TED: How to make radical climate action the new normal | Al Gore
A net-zero future is possible, but first we need to flip a mental switch to truly understand that we can stop the climate crisis if we try, says Nobel laureate Al Gore. In this inspiring and essential talk, Gore shares examples of...
SciShow
Aphids: Weird Poop, Weirder Babies
When you poop sugar, clone yourself and give birth to pregnant babies, you know your survival skills are off the hook...and that you must be an aphid.
3Blue1Brown
The most unexpected answer to a counting puzzle
A puzzle involving colliding blocks where the number pi, vey unexpectedly, shows up.
TED Talks
TED: Why I must speak out about climate change | James Hansen
Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply...
TED-Ed
TED-Ed: The bug that poops candy | George Zaidan
Aphids can reproduce incredibly fast: they can make 20 new generations within a single season. And that means lots of poop. Some aphid populations can produce hundreds of kilograms of poop per acre— making them some of the most prolific...
TED-Ed
TED-Ed: How quantum mechanics explains global warming - Lieven Scheire
You've probably heard that carbon dioxide is warming the Earth. But how exactly is it doing it? Lieven Scheire uses a rainbow, a light bulb and a bit of quantum physics to describe the science behind global warming.
TED-Ed
TED-Ed: The uncertain location of electrons - George Zaidan and Charles Morton
The tiny atoms that make up our world are made up of even tinier protons, neutrons and electrons. Though the number of protons determines an atom's identity, it's the electrons -- specifically, their exact location outside the nucleus --...
SciShow
Bacteria Could Someday Power Our Cell Phones
Unlike most living things, there are species of bacteria that can harness electrons directly and even shuttle them around from place to place like living wires.
PBS
The Real Meaning of E=mc Squared
You've probably known OF E=mc_ since you were born, and were also probably told that it meant that it proved Mass equaled Energy, or something along those lines. BUT WAIT. Was E=mc_ explained to you properly? Mass equalling energy is...
SciShow
SciShow QuizShow: Bad Blood and Weird Bugs
SciShow’s Executive producer Hank Green faces off against SciShow senior editor Alyssa Lerner in this Quiz Show about weird experiments and strange animal parts.