SciShow explores two celestial mysteries: the origins of a meteorite that crashed into a house in California, and who’s releasing chemicals into the atmosphere that were banned more than 25 years ago?
SciShow News explains the science behind ALS, the disease that has inspired millions to take the Ice Bucket Challenge. Learn what ALS is, what we do and don’t know about it, and watch SSN hosts take the challenge themselves!
SciShow Space takes you behind the scenes of astronaut training, to show how crew members and their equipment are tested in microgravity, all while never having to leave Earth.
Quick Questions explains what alcohol does — and doesn’t do — to your brain cells. Enjoy this episode responsibly!
Julia’s writing the latest batch of names on the SciShow Wall of Fame! YOU could be immortalized on our office walls forever for just a $10 contribution on Subbable.
If you’ve ever been pregnant, or been around a pregnant lady, you know that the agony that is morning sickness — and it’s not just something that happens in the morning! SciShow explains the many theories about what causes it.
"Heavy metals" is more of a colloquial term than a scientific one. There are lots of very heavy metals that aren’t dangerous at all. We wear gold and silver and platinum in our jewelry. Bismuth is all up in your PeptoBismol and most of the lanthanides and actinides are safe. Also, lots of the lighter metals (particularly sodium and lithium) while being great in certain chemical forms, in their pure forms will kill you extremely quickly (and violently.)
What it comes down to is simply whether the metal interferes with the normal functioning of your body. And we’ve got complicated bodily chemistries so it turns out that there are around a dozen metals that you don’t want to get in your body. At the same time, some of them, like zinc, are helpful it certain chemical configurations. A great example of how it’s not about the metal so much as the chemistry of the body…copper is safe for humans, but is extremely toxic to fish.
Hank shares the nuts-and-bolts of the world’s first robot swarm, and explains what the creepy, cute and extinct animal known as Hallucigenia can teach us about evolution.
SciShow Space shares the latest developments from around the universe, including news about the first material ever collected from outside the solar system, and a backyard astronomers’ guide to two upcoming planetary conjunctions.