Crash Course
Unsupervised Machine Learning - Crash Course Statistics
Today we're going to discuss how machine learning can be used to group and label information even if those labels don't exist. We'll explore two types of clustering used in Unsupervised Machine Learning: k-means and Hierarchical...
Crash Course
Work, Energy, and Power: Crash Course Physics
When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to...
SciShow
Why Do We Kiss?
Hank gets all up in your face about kissing -- where does it come from, why do it we do it, and do other animals do it? From ancient India to that date you were on last night (which we won't tell anyone about if you won't), we explore...
SciShow
There’s a Birth Control for Stars
Black holes are already pretty extreme, but some stand out among their peers, driving cosmic engines that outshines the rest of the galaxy and even serving as birth control for stars!
TED Talks
TED: Could we treat spinal cord injuries with asparagus? | Andrew Pelling
Take a mind-blowing trip to the lab as TED Senior Fellow Andrew Pelling shares his research on how we could use fruits, vegetables and plants to regenerate damaged human tissues -- and develop a potentially groundbreaking way to repair...
Be Smart
How Many Smells Can You Smell?
We walk through life led by our noses. Literally. Because they're on the front of our faces. How does the sense of smell work, and how sensitive are our noses? Why are smell-related memories so vivid? How many different smells could we...
Crash Course
Hackers & Cyber Attacks: Crash Course Computer Science
Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White...
Crash Course
Interest Group Formation: Crash Course Government and Politics
So last week we talked about what special interest groups are and how they influence the political system, and today we’re going to focus on why we even have them in the first place. As to avoid getting too cynical, we’re going to focus...
SciShow
Could Your Blood Type Ever Change?
From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?
TED Talks
Priyanka Jain: How to make applying for jobs less painful
Finding a job used to start with submitting your résumé to a million listings and never hearing back from most of them. But more and more companies are using tech-forward methods to identify candidates. If AI is the future of hiring,...
TED Talks
TED: This gel can make you stop bleeding instantly | Joe Landolina
Forget stitches -- there's a better way to close wounds. In this talk, TED Fellow Joe Landolina talks about his invention -- a medical gel that can instantly stop traumatic bleeding without the need to apply pressure. (Contains medical...
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
SciShow Kids
How Are Raisins Made?
Raisins are a sweet, healthy treat, but they have a big secret: they start out as grapes! And the story of how they go from big, juicy grapes to little, chewy raisins is super cool!
TED Talks
TED: How I'm working for change inside my church | Chelsea Shields
How do we respect someone's religious beliefs, while also holding religion accountable for the damage those beliefs may cause? Chelsea Shields has a bold answer to this question. She was raised in the orthodox Mormon tradition, and she...
SciShow
What Is Gravitational Lensing?
Learn more about gravitational lensing with host Caitlin Hofmeister.
TED-Ed
TED-Ed: Eye vs. camera - Michael Mauser
Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution with our brains. Michael Mauser outlines the similarities...
SciShow
Xenophyophores: The Strange Life of a Giant Single Cell
You may think of single-celled organisms as being microscopically small, but these ocean dwellers are a little heftier than that.
Amoeba Sisters
DNA vs RNA (Updated)
Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA and learn why DNA should be sharing the limelight! Table of Contents: 00:00 Intro 0:54 Similarities of DNA and RNA 1:35 Contrasting DNA and...
SciShow
How to Catch a Supernova Rerun
On earth a sound echo lets you hear something again. Over great distances, a light echo can let you see something again, specifically an exploding star.
SciShow Kids
The Real Animals of Madagascar | Animal Science for Kids
Jessi and Squeaks introduce you to the amazing, unusual animals and plants from a place like nowhere else on earth: Madagascar!
SciShow
Stem Cells
Hank gives you the facts on stem cells - what they are, what they're good for, where they come from, and how they're used in medicine.
SciShow
Do Personality Tests Mean Anything?
Like most quizzes on the internet, personality tests aren't what you would call "reliable."
SciShow Kids
Where Do Bananas Come From? Botany for Kids
Jessi and Squeaks are getting ready to make some delicious banana bread, but did you know that bananas aren't your typical fruit?
SciShow
Mr. Frosty, the Cancer-fighting Gecko
Not only is this gecko adorned with beautiful coloration, but the same thing that makes it look so pretty could help us understand where some our cancers come from and how to stop them from progressing!