TED Talks
Dean Ornish: Your genes are not your fate
Dean Ornish shares new research that shows how adopting healthy lifestyle habits can affect a person at a genetic level. For instance, he says, when you live healthier, eat better, exercise, and love more, your brain cells actually...
TED Talks
Fabian Oefner: Psychedelic science
Swiss artist and photographer Fabian Oefner is on a mission to make eye-catching art from everyday science. In this charming talk, he shows off some recent psychedelic images, including photographs of crystals as they interact with...
Be Smart
How to See Time Travel!!!
Build your own cloud chamber particle detector and test relativity at home!
SciShow
Why Cancer Labels Are Super Misleading
What does it actually mean when a label says something ‘causes cancer’? Those labels can be misleading, but knowing the legal and scientific reasoning behind them can help.
SciShow
Dmitri Mendeleev: Great Minds
Hank introduces us to the man behind the periodic table - the brilliant Russian chemist Dmitri Mendeleev.
SciShow
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 at Duke University have found evidence that...
SciShow
The Science (and Dangers) of Booze in Humans
Many of us choose to enjoy the effects of alcohol, and we know that drinking too much is a bad thing, but what kinds of things can actually happen when you drink too much for too long?
SciShow
That Time the US Government Poisoned Alcohol
The alcohol we drink is just one particular kind of alcohol: ethanol. The others can be a lot more dangerous, and in the 1920s, the US government made a really dangerous cocktail.
SciShow
Spring, Time for Drunk Birds
As spring approaches in the Northern Hemisphere, we anticipate the fluttering butterflies and the capering baby lambs, and we can also expect to see some birds hammered out of their minds in the trees, and perhaps on the ground. In most...
SciShow
Does Hand Sanitizer Create Superbugs?
Alcohol-based hand sanitizers are an effective way to kill a myriad of potentially harmful microbes. But is there a risk of germs becoming resistant to this ubiquitous liquid?
SciShow
Getting Crayfish Drunk... For Science!
What can drunk crayfish tell us about how being social can affect our physiology?
SciShow
Can You Make Alcohol in Space?
Scientists sent the ingredients to brew beer and age whisky into space. What they got back was surprising.
SciShow
SciShow: Resolutions Compilation
Need a determination boost to complete those New Year's Resolutions (or really any kind of resolution)? Look no further than this compilation of SciShow videos from SciShow of yore.
SciShow
Masks? Handwashing? Sanitizer? — How to Protect Yourself from Coronaviruses
Today, we all do our best to protect ourselves from coronaviruses. But a lot of what people are doing doesn’t really help, and it could take away supplies from those who actually need them. Hank explains what does help, and how it...
SciShow
Is There a Way to Sober Up Faster?
You may be aware of certain hacks to sober up, but researchers have found a way to actually get booze out of our systems faster. And this discovery could help first responders when facing alcohol overdoses.
Crash Course
19th Century Reforms Crash Course US History
In which John Green teaches you about various reform movements in the 19th century United States. From Utopian societies to the Second Great Awakening to the Abolition movement, American society was undergoing great changes in the first...
SciShow
3 Things Your Cat Should Not Be Doing
Cats are known for their curiosity, and as that one saying goes “it killed the cat”. But we can help our cuddly counterparts avoid this sad fate if we watch out for these three everyday things.
SciShow
Why does hand sanitizer feel cold? #shorts #science
Why does hand sanitizer feel cold? #shorts #science
Crash Course
Archdukes, Cynicism, and World War I Crash Course World History
In which John Green teaches you about the war that was supposed to end all wars. Instead, it solved nothing and set the stage for the world to be back at war just a couple of decades later. As an added bonus, World War I changed the way...
SciShow
Why Nutrition Studies Keep Contradicting Each Other
It seems like nutrition studies contradict a lot, and it’s practically impossible to get a straight answer on whether a given food or supplement is good for you. But why?
SciShow
8 Survival Myths That Will Definitely Make Things Worse
You might think you know how to survive if you end up stranded in the wild, but those tips you read on the internet might just make things worse! Some tips seem too good to be true, and they are. Others are ingrained enough to be common...
Crash Course
Mass Separation: Crash Course Engineering #17
It can be really important to separate out chemicals for all kinds of reasons. Today we’re going over three different processes engineers use to achieve that separation: distillation, which separates substances based on their different...
SciShow
Is it Good to Drink Beer After Working Out
Beer has water, electrolytes, and simple carbs, just like your typical sports drink, but is it good for you to drink alcohol right after working out?
SciShow
Can You Really Cook Alcohol Out of Food?
You’ve probably heard that it’s no big deal when a cake recipe calls for some rum, because all the alcohol will just cook right off! Well, that's only partly true.