What we think of as 3D printing, says Joseph DeSimone, is really just 2D printing over and over ... slowly. Onstage at TED2015, he unveils a bold new technique -- inspired, yes, by Terminator 2 -- that's 25 to 100 times faster, and...

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the...

Why do we see those stunning lights in the northern- and southernmost portions of the night sky? The Aurora Borealis and Aurora Australis occur when high-energy particles are flung from the Sun's corona toward the Earth and mingle with...

As we look towards longer missions to the Moon, the shear amount of resources needed to survive becomes a much bigger question. Without space semi-trucks to haul life-giving resources to astronauts, can we utilize the Moon’s barren...

An average teaspoon of ocean water contains five million bacteria and fifty million viruses -- and yet we are just starting to discover how these "invisible engineers" control our ocean's chemistry. At TEDxMonterey, Melissa Garren sheds...

What mammal has the social life of an insect, the cold-bloodedness of a reptile, and the metabolism of a plant? Bald and buck-toothed, naked mole rats may not be pretty, but they are extraordinary. Thomas Park explains how mole rats'...

Scientists have known for some time that certain animals can breathe using their butts, but now, researchers have determined that certain mammals can too! And in very much other news, researchers in Washington state have developed a new...

Scientists studying Comets 67P and Lovejoy have discovered oxygen, alcohol, and the building block of sugar. Sounds like a regular Friday night on earth, but it’s the first time we’ve found any of these things on a comet.

Jessi and Squeaks take a look at some pond water under a microscope, and learn all about the living things they can see inside!



Next Generation Science Standar

ds 2-LS2-2

Disciplin
ary Core Idea: LS2.A
“Plants...

Paul Andersen explains the final 6 of 13 AP Biology Labs. The following topics are included: Transformation, Restriction Analysis of DNA, Energy Dynamics, Transpiration, Animal Behavior, and Enzyme Activity.

In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet's surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. They tried looking at Earth with only this...

Foraminifera - tiny, single-celled marine life forms - build gorgeous houses that record how much ice there is on the planet.



FYI: We try to leave jargon out of our videos, but if you want to learn more about this...

Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism.

Legendary ocean researcher Sylvia Earle shares astonishing images of the ocean -- and shocking stats about its rapid decline -- as she makes her TED Prize wish: that we will join her in protecting the vital blue heart of the planet.

Usually, the 160,000 kilometers of blood vessels in your body work incredibly smoothly. However, the forces of age, weight gain, and gravity can conspire to cause lumpy varicose veins.

How do we know what the air is like on planets we haven't visited? This video explains how to see air from 150 light years away. Thanks to NASA's James Webb Space Telescope project at the Space Telescope Science Institute for supporting...

Why do chickens and turkeys have white meat and dark meat? And, like, gross, but .. do humans have the same thing? It's all about our muscles: what they're made of, and what they're made for. Quick Questions has the answers!

When we breathe out, we empty our lungs. But an ancient reptile figured out a more efficient way to breathe, which ultimately helped birds dominate the skies.

Throughout history, people have been trying to figure out how our bodies work and how to fix them when things go wrong. This has led to some ideas that, with the benefit of hindsight, seem very strange

Today Hank and Sam figure out if medical side effects could help you "do crimes" and whether you can have a "gentle hate."

Sensory deprivation tanks, oxygen therapy chambers and unbelievably cold saunas - oh my! These machines are used to reduce stress, ease pain and could be useful in doing that, but these machines are generally meant to be used in very...

SciShow Space gives you a blow by blow account of what's going to happen to the sun -- and Earth.

Astronomers took advantage of a lunar eclipse to study Earth as if it were an exoplanet, and Mars's Insight lander used seismic data to reveal for the first time boundaries between different layers of Mars.

When a species evolves from living in water to living on land it’s called terrestrialization, and it’s not an easy task. Yet crabs keep making the jump from sea to shore. Why? And how do they do it?