SciShow
Our Galaxy May Be 10 Times Bigger Than We Thought
The Milky Way is often described as measuring 100,000 light years across and containing the mass of a trillion Suns. But our home galaxy is actually far bigger, and might be much less massive. Astronomers aren't sure what the exact stats...
PBS
How Plate Tectonics Gave Us Seahorses
How did seahorses — one of the ocean’s worst swimmers — spread around the globe? And where did they come from in the first place?
SciShow
We’re Wrong About How Mountains Form
We think we know how mountains form. Plate tectonics causes rock to be pushed up at fault boundaries. Except that model is hard to prove, and a new study suggests it might actually be a lot more complicated.
SciShow
Astronomy’s Unsung Hero is a Plain Ol’ Aluminum Ball
In 1965, MIT's Lincoln Laboratory saw their Lincoln Calibration Sphere 1 (LCS-1) launched into Earth orbit. It was an empty aluminum sphere and couldn't do any science of its own. But the world's most boring disco ball has played a huge...
SciShow
What Does a 95% Effective Vaccine Really Mean?
If you've received a vaccine that's 95% effective, that does not mean you have a 5% chance of getting sick. That’s just not how the numbers are calculated. So let’s take a closer look at how it does work, why we can’t compare these...
SciShow
How Humans Are Almost Identical to Chimps, According to DNA
On the genetic level, we're not all that different from chimps. But those small differences in DNA can have massive effects. Learn what makes us truly different from chimpanzees in this new episode of SciShow!
Curated Video
3 win Nobel chemistry prize for molecular machines
Three scientists won the Nobel Prize in chemistry on Wednesday for developing the world's smallest machines, 1,000 times thinner than a human hair but with the potential to revolutionize computer and energy systems.Frenchman Jean-Pierre...
Crash Course Kids
Hunting for Properties
Remember pre-school? If not, IT WAS SO MUCH EASIER! But when you were stacking blocks and figuring out which block went into which shaped hole, you were learning about properties. In this episode of Crash Course Kids, Sabrina talks about...
Bozeman Science
ETS1B - Developing Possible Solutions
In this video Paul Andersen explains how many possible solutions are developed in the design process. As many solutions to the problem are identified using a brainstorming process. These solutions are compared to the specific constraints...
SciShow
Why Are Some Animal Babies So Helpless
Have you ever noticed that some animal babies, like baby deer, can walk around basically right after they're born, but other animal babies, like kittens, can't even open their eyes? There’s a reason for that, and it comes down to two...
SciShow
The Brewer Who Secretly Revolutionized Statistics | Great Minds: William Gosset
When you have a study with a small sample size, how do you know that the results represent the broader population? Well, thanks to a brewer who needed to assess beer quality in the early 1900s, we now have a simple statistical test that...
SciShow
What’s in the 4% of our DNA that makes us different from chimps?
On the genetic level, we're not all that different from chimps. But those small differences in DNA can have huge effects.
SciShow
Music in Your DNA and A New Species of Human?
Is musical ability genetic? And were there more species of ancient humans than we once thought? SciShow News investigates!
SciShow
Is There An fMRI Crisis?
As technology becomes more complex, it's easier for things to go wrong.
Bozeman Science
LS4A - Evidence of Common Ancestry and Diversity
In this video Paul Andersen describes several types of evidence for common ancestry. This evidence is contained in the fossils, embryos and molecules of living organisms. Even though life on our planet is incredibly diverse there are...
TED Talks
TED: No roads? There's a drone for that | Andreas Raptopoulos
A billion people in the world lack access to all-season roads. Could the structure of the internet provide a model for how to reach them? Andreas Raptopoulos of Matternet thinks so. He introduces a new type of transportation system that...
SciShow
Brain vs. Computer
The brain of luchador Hanko wants to take on the worlds fastest supercomputer, "K," in a cage match for bragging rights - which one is the most impressive information processor?
Bozeman Science
Thinking in Quantity: Level 6 - Orders of Magnitude
In this video Paul Andersen shows conceptual thinking in a mini-lesson on orders of magnitude. Scale models - a representation that has been reduced or enlarged to a specific scale Orders of magnitude - is an approximation of the...
SciShow
The Year-Long Twin Astronauts Experiment
Astronauts Scott Kelly and Mikhail Kornienko will soon undertake a historic, record-breaking mission: to live in space for an entire year. And scientists will have some extra help studying the effects of this extended stay on the...
Bozeman Science
AP Biology Test: A User Guide
Mr. Andersen describes the two portions of the AP Biology Test. Tips for answering multiple choice and free response questions are included. Sample questions from old AP tests are also included.
Amoeba Sisters
Hardy-Weinberg Equilibrium
Explore the Hardy-Weinberg Equilibrium equations with The Amoeba Sisters! Learn why this equation can be useful, its five assumptions, and how to calculate genotype and allele frequencies with p and q values! This video does assume the...
SciShow
We Can Cure Ebola! (Mostly—Which Is Better Than Rarely) | SciShow News
We’ve made a lot of progress recently in curing two deadly diseases that have been difficult to treat!
TED-Ed
TED-Ed: What's the fastest way to alphabetize your bookshelf? - Chand John
You work at the college library. You're in the middle of a quiet afternoon when suddenly, a shipment of 1,280 books arrives. The books are in a straight line, but they're all out of order, and the automatic sorting system is broken. How...
TED Talks
Margaret Gould Stewart: How YouTube thinks about copyright
Margaret Gould Stewart, YouTube's head of user experience, talks about how the ubiquitous video site works with copyright holders and creators to foster (at the best of times) a creative ecosystem where everybody wins.