TED Talks
Rob Knight: How our microbes make us who we are
Rob Knight is a pioneer in studying human microbes, the community of tiny single-cell organisms living inside our bodies that have a huge — and largely unexplored — role in our health. “The three pounds of microbes that you carry around...
SciShow
Can a Hot Drink Cool You Down?
In some arid parts of the world, people cool off by drinking hot beverages. Can a hot drink on a hot day really cool you down?
SciShow
Baboons With 2 Hearts & Pigs With Human DNA
Hank reveals two breakthroughs in the burgeoning science of xenotransplantation, the transplant of tissues across species. By the end of it, you'll want to hug your nearest pig!
SciShow
5 Tiny Bots Inspired by Nature
The creation of tiny robots could enable the exploration of new frontiers, from the tightest spaces in the human body to the most remote ecosystems. Here are 5 little bots that draw inspiration from nature to get the job done.
TED Talks
Lisa Harouni: A primer on 3D printing
2012 may be the year of 3D printing, when this three-decade-old technology finally becomes accessible and even commonplace. Lisa Harouni gives a useful introduction to this fascinating way of making things -- including intricate objects...
TED Talks
Julian Burschka: What your breath could reveal about your health
There's no better way to stop a disease than to catch and treat it early, before symptoms occur. That's the whole point of medical screening techniques like radiography, MRIs and blood tests. But there's one medium with overlooked...
SciShow
This Worm's Gut Has No Way In or Out
There are plenty of creatures out there with only one opening to handle both taking in food and getting rid of waste. But there’s at least one animal out there that doesn’t have a gut opening… at all. How does that even work?!
SciShow
Do We Have To Give Up Bacon?
The IARC has categorized processed meat as a definite carcinogen. But how dangerous is it really? Do we finally have to give up bacon?
SciShow
A Very Handy Fish Fossil
This week, scientists discover something in a fish fossil that might give us a hand in finding our earliest land-dwelling ancestors.
SciShow
When Sex Makes You Sick Post Orgasmic Illness Syndrome
Generally speaking, orgasms are pretty wonderful. But for some, they can be literally sickening.
SciShow
What We've Learned from Fossilized Farts
We tend to think of fossils as dinosaur bones or petrified wood, but what if we told you that there's a lot we can learn from fossilized waste?
SciShow
Your Head Might Be On Sideways
In your brain the right side controls the left half of your body and vice versa. We still aren't sure why this is, but some scientists have come up with a pretty bizarre explanation: that some ancient vertebrate ancestor was born with...
TED Talks
Joy Wolfram: How nanoparticles could change the way we treat cancer
Ninety-nine percent of cancer drugs never make it to tumors, getting washed out of the body before they have time to do their job. How can we better deliver life-saving drugs? Cancer researcher Joy Wolfram shares cutting-edge medical...
SciShow
What Neanderthal DNA Is Doing To Your Genome
Scientists estimate that about 2% of our DNA is from Neanderthals. In this week, the journal Cell showed what those Neanderthal DNA do to our genome.
MinuteEarth
Why Is Poop Brown And Pee Yellow?
The pigments in our food all get destroyed on their way through our digestive system...so where do the colors of our poop and pee come from? ________________________ FYI: We try to leave jargon out of our videos, but if you want to learn...
SciShow
There's a Single-Celled Dog
Is it possible for there to be a dog that is made of one very determined cell?
SciShow
The Key to an Artificial Heart ... and Open-Heart Surgery
Scientists have been trying to pull blood out of the body and put it back in again since the early 1800s, but bypass machines haven't been easy to get right.
SciShow
How Measles Vaccines Protect You From Other Diseases
Since measles vaccines started making their rounds, child mortality has dropped by up to 90% percent in some countries. That’s more than you’d expect if the measles vaccine just prevented deaths from measles. Can science explain this...
SciShow
Do You Need a Brain to Sleep?
You might think you need a brain to be able to sleep, but organisms with super simple neural networks can still "sleep" sort of like we do. So, if these organisms can sleep too, then what is sleep anyway?
SciShow
The Speedy Cold-Hearted Tuna
Most fish are pretty sluggish in the cold. But the Pacific bluefin tuna is one of the fastest apex predators in the frigid Pacific ocean. Their physiology has adapted to help them retain more of the heat their bodies produce, except when...
SciShow
7 Organs You Could Totally Live Without
Most people know that they don't need their appendix, but what other organs can humans live without?
SciShow
Why Does Crying Make You Feel Better?
Have you ever wondered why you feel better after a good, hearty sob? Well, it turns out the reasons are kind of a mystery, and they range from social support to brain temperature.
TED-Ed
TED-Ed: If superpowers were real: Body mass - Joy Lin
What if manipulating body mass wasn't just the stuff of epic comic book stories? Is it scientifically possible to manipulate your body mass? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic...
PBS
We Are Star Stuff
Stars are our stellar alchemists. They spend their entire lifespan creating and molding elements. In their final moments, a supernova spreads these elements out into the universe, providing the building blocks for new stars, planets, and...