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Why HIV Isn't a Death Sentence Anymore
In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have still managed to improve...
How Do Parrots Talk Like Humans?
Are parrots just good at imitating sounds or is there something else that separates them from other birds? We're conducting a survey of our viewers! If you have time, please give us feedback:...
8 of the Worst Stinging Insects
Generally, humans try to avoid getting stung by insects. However, in the name of science, the betterment of humanity, and pure curiosity, there are brave people out there who willingly subject...
Why Don't All Blue Whales Have Cancer?
Thanks to 23AndMe for supporting SciShow. These kits make great gifts, so check out https://23AndMe.com/SciShow Do larger creatures get cancer more frequently? We're conducting a survey of...
How Do You Weigh Things in Space?
Astronauts need to know their mass while in orbit, but a normal scale would be free-falling around the Earth with them. So how do they measure their mass without gravity? We're conducting...
There Are Crystal Mirrors Hidden in Scallop Eyes
Sea creatures abound this week, as scientists make discoveries about scallop eyes and use models to help figure out the age old mystery, "Which came first, comb jellies or the sea sponge?”...
Airplanes and Other Man-Made Cloud Machines
What do airplanes, power plants, ships, and explosions have in common? They all make clouds! We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.survey...
Sex Research: SciShow Talk Show
This week on SciShow Talk Show, Dr. Lindsey Doe sexplains to Hank some of the difficulties in conducting sex research and discusses the past leaders of the field. Later, Jessi from Animal Wonders...
Why Don't Fire Hydrants Freeze and Explode?
Pipes can freeze in the winter, but you never hear about fire hydrants freezing. What makes them safe from the cold temperatures in winter time? SciShow Finds: https://scishowfinds.com/ We're...
The Last Major Smallpox Outbreak in America
Luckily, we live in a time where we don't have to worry about smallpox anymore. It's a horrible disease, but through smart vaccination techniques, we took it from killing millions worldwide,...
How Close Are We to the Perfect Smart Home?
This episode was produced in collaboration with and sponsored by Emerson. Click here to learn more about their We Love STEM initiative: http://bit.ly/2fnBiHO Want to do more than talk to your...
Why Can't You Donate Platelets After Taking Aspirin?
Curious why you can't donate platelets after taking aspirin? Wonder no more! We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/Sci...
Earthquakes Probably Won't Destroy Us in 2018
You may have read that 2018 is looking to be a bad year for earthquakes, but Hank is here to offer you some assurances. Check out SciShowFinds for some cool things: https://scishowfinds.com/...
How Ancient Pollen Can Predict The Future
We don't need a time machine to learn from the past (but let us know if you find one)! Air bubbles trapped in ice for millennia and ancient pollen grains can tell us a lot about climate shifts...
How a Sick Chimp Led to a Global Pandemic: The Rise of HIV
In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated....
Why Can't You Bring Mercury Thermometers on Planes?
Mercury thermometers are handy and useful, but they could be extremely dangerous to bring on planes. We're conducting a survey of our viewers! If you have time, please give us feedback: https://w...
The Bone Wars: A Feud That Rocked U.S. Paleontology
The Bone Wars resulted in the description of some of the most famous dinosaurs we know of today, but not without some pretty big mistakes. We're conducting a survey of our viewers! If you...
Will the Moon Ever Leave the Earth's Orbit?
Every year the moon's orbit gets a little bigger and it moves just a little farther away. Should we worry about the Moon breaking free? We're conducting a survey of our viewers! If you have...
Editing Genes Inside the Human Body
We talk a lot about CRISPR and "designer babies" but the science of editing genes is varied and complex. This month, an adult man received billions of gene-editing viruses via an IV in an effort...
The Real Philosopher's Stone: Turning Lead into Gold
With scientists' efforts and their creativity, we finally found “the real philosopher's stone.” That's right, we can now turn lead into gold... a little bit. We're conducting a survey...
SciShow Quiz Show: Battle of the Brains!
It's the battle of the SciShow Psych Hosts: Brit Garner and Hank Green! Brit came prepared, but can Hank still win the game for his Patron? Hosted by: Michael Aranda ---------- Support SciShow...
Can Achy Joints Really Predict the Weather?
Can your grandma really tell when a storm is coming based on her knee? Scientists have been looking into this tale for years, and either way, you should probably still call her just because....
Does Drinking Alcohol Kill Your Gut Bacteria?
Alcohols are used to disinfect things all the time, which makes drinking them sound bad for the helpful critters in your gut. But, turns out, drinking in moderation could actually be good for...
Can You Break Glass with Your Voice?
It's an old cliche: an opera singer hits a note so high, it breaks a wine glass. It may seem over the top, but with a little science (and an amp), you too can break a glass like the finest...
Should You Worry About Alcohol Causing Cancer?
The American Society of Clinical Oncology recently released an official statement about alcohol and cancer, but the information isn't as extreme as some headlines would imply. Also, scientists...
How to Make Plasma in Your Microwave ... With a Grape
You've probably seen the videos on YouTube turning grapes into fireballs in the microwave. Well, there's a pretty cool scientific explanation for why a grape is perfect for making plasma....
How Climate Scientists Predict the Future
Over the years, scientists have made a lot of predictions about how Earth's climate is changing, but they don't just pull those predictions from thin air. We're conducting a survey of our...
What Does A Cochlear Implant Sound Like?
Cochlear implants don't generate sound like a hearing aid would. Instead, they zap your cochlea. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.su...
Founding An Inbreeding-Free Space Colony
Thanks to 23AndMe for supporting SciShow. These kits make great gifts, so check out https://23AndMe.com/SciShow How much genetic diversity would we need to found a colony on another planet?...
Why Are Metals Shiny?
We can all appreciate pretty shiny things, but what makes them shiny? We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSur...
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