Instructional Video7:56
SciShow

Are Sharks Really Older Than the North Star?

12th - Higher Ed
If you've spent enough time on the internet, you may have stumbled upon the fact that sharks are older than Polaris, aka the North Star. But are they really? It turns out the truth is a little more complicated.
Instructional Video14:03
SciShow

How Do We Know How Old the Earth Is?

12th - Higher Ed
In the wake of World War 2, Clair Patterson embarked on a scientific quest to find out how old the Earth really is. His hard work paid off, but it also revealed a modern danger.
Instructional Video4:48
SciShow

How Do You Date a Star?

12th - Higher Ed
Figuring out the age of a blinking speck in the sky is a difficult feat, especially if considering how many types of stars there are. This is where a Hertzsprung-Russell meets a gyrochronologist.
Instructional Video6:53
SciShow

People Grow Brain Cells Well Into Their 80s | SciShow News

12th - Higher Ed
This week, scientists announced great news about our brains and those discoveries may help us find the cure for a number of diseases and disorders.
Instructional Video5:03
SciShow

Why’d the Ocean Stop Getting Saltier?

12th - Higher Ed
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
Instructional Video4:49
SciShow

Doggerland: A Real-Life Atlantis

12th - Higher Ed
Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.
Instructional Video3:15
SciShow

The Truth About Dog Years (Your Pupper Is Older Than You Think!)

12th - Higher Ed
You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower—depending on your dog’s current age.
Instructional Video9:57
SciShow

Why We Age - And How We Can Stop It

12th - Higher Ed
Hank hates death, so he helps us understand the process of aging, informs us of how scientists are studying ways to prevent it and brings us the exciting news of current research in longevity... for mice.
Instructional Video2:19
SciShow

Why Do Women Live Longer Than Men?

12th - Higher Ed
Evidence strongly suggests that men have, on average, a shorter lifespan than women, but scientists aren't exactly sure why that is. Check out today's QQ to learn more about this mortality mystery.
Instructional Video2:19
SciShow

What Causes 'Old People Smell'?

12th - Higher Ed
If you've ever associated a smell with old age, you weren't imagining it—it all has to do with the chemistry of our skin.
Instructional Video3:01
SciShow

Viking Sunstones and Mummy Health Secrets

12th - Higher Ed
Today on SciShow news, dead person wisdom is helping enrich our understanding of the natural world - how did Vikings manage to be such awesome navigators? And is heart disease inherent in human beings? Scientists think mummies may have...
Instructional Video4:54
SciShow

Why Dancing Is So Helpful for Parkinson's

12th - Higher Ed
For millions of people with Parkinson’s disease, movement becomes much harder. But researchers have found that dance therapy may help them both physically and mentally.
Instructional Video2:47
SciShow

The Male Biological Clock

12th - Higher Ed
Another aging rock star, another baby, does age have any affect on sperm, or are these little swimmers seemingly viable until death?
Instructional Video4:49
SciShow

Doggerland: A Real-Life Atlantis

12th - Higher Ed
Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.
Instructional Video5:03
SciShow

Why’d the Ocean Stop Getting Saltier?

12th - Higher Ed
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
Instructional Video10:23
SciShow

The End of Everything

12th - Higher Ed
Hank gives us an inclusive overview of how everything in the universe is thought to have begun, and how cosmologists predict it will all come to an end. Now get happy!
Instructional Video6:57
SciShow

People Grow Brain Cells Well Into Their 80s | SciShow News

12th - Higher Ed
This week, scientists announced great news about our brains and those discoveries may help us find the cure for a number of diseases and disorders.
Instructional Video5:02
SciShow

3 Discoveries You Missed Because of COVID

12th - Higher Ed
There have been a lot of scientific discoveries around COVID, but other science stories did happen in 2020 — including amazing discoveries about everything from dinosaurs to parasites.
Instructional Video5:00
SciShow

Growing Lambs in High-Tech Plastic Bags

12th - Higher Ed
We're closer than ever to growing life in artificial wombs, and we've learned a bit more about how glucose and protein affect exercise endurance.
Instructional Video3:17
SciShow

The Truth About Dog Years (Your Pupper Is Older Than You Think!)

12th - Higher Ed
You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower—depending on your dog’s current age.
Instructional Video5:21
SciShow

The Girl Who Never Grew Up

12th - Higher Ed
The human body generally grows in a predictable pattern, but in one rare case, one American girl essentially remained a toddler her entire life.
Instructional Video16:51
SciShow

From Your Head to Your… Anus: The Truth About Hair | Compilation

12th - Higher Ed
Whether you’ve got a lot of hair or absolutely none, it’s one of those things all of us have thought about at some point. And we’ve ended up with some… questions.
Instructional Video10:15
SciShow

Why Was the Islamic Golden Age of Science… Golden?

12th - Higher Ed
Around 750-1250 CE, the Islamic empire made incredible scientific advancements that still influence many fields of research today. What we know about some of the great minds of that time, as well as what we’ve learned from modern...
Instructional Video5:10
SciShow

You Read More Slowly As You Get Older — Here's Why

12th - Higher Ed
Researchers have noticed a decline in reading ability starting in your 40s. And learning more about why this happens might help us tell the difference between healthy aging and Alzheimer’s disease.