Crash Course
Radical Reactions Hammonds Postulate - Crash Course Organic Chemistry
Throughout this series we’ve mostly talked about pairs of electrons, but electrons don’t always have a buddy. An atom or group of atoms with a single unpaired electron is called a radical. In this episode of Crash Course Organic...
TED Talks
Marilyn Waring: The unpaid work that GDP ignores -- and why it really counts
If you: do laundry, are (or have been) pregnant, tidy up, shop for your household or do similar labor, then by GDP standards, you're unproductive. In this visionary talk, economist Marilyn Waring seeks to correct the failures of this...
SciShow
Detecting Earthquakes: AI vs. Citizen Scientists
There are over 13,000 active seismic stations out there, producing far more data than seismologists have time to go through. So, researchers set up a showdown of humans versus machines to sift through all this information and, in the...
SciShow
A Raindrop Is a Raindrop, Even When It’s Metal
On earth it rains water, on the exoplanet WASP-76b, it rains liquid iron, but no matter what planet you're on, the rain drops there have a lot more in common than you might think.
Bozeman Science
Chi-squared Test
Paul Andersen shows you how to calculate the ch-squared value to test your null hypothesis. He explains the importance of the critical value and defines the degrees of freedom. He also leaves you with a problem related to the animal...
SciShow
Moonquakes and Marsquakes
SciShow Space explores the origins of Earthquakes that aren't on Earth. Moonquakes and Marsquakes can happen, too!
SciShow
The 2 Secrets to Sending People to Mars
Hank revisits his passion for exploring the Red Planet, breaking down the two biggest challenges of sending humans to Mars: radiation and propulsion. He explains the science behind the obstacles future Mars-bound astronauts will face, as...
TED Talks
TED: How digital DNA could help you make better health choices | Jun Wang
What if you could know exactly how food or medication would impact your health -- before you put it in your body? Genomics researcher Jun Wang is working to develop digital doppelgangers for real people; they start with genetic code, but...
SciShow
The Future of Interstellar Communication
How will we communicate with the ships that we send to other stars? Scientists think the answer might involve using the sun as a giant lens to strengthen the signal.
TED Talks
TED: How we could better predict and stop floods | Virginia Smith
From village to metropolis, global flooding is on the rise, and traditional approaches to managing the swells won't cut it, says water resource engineer Virginia Smith. Giving an overview of the dynamic shift needed to stymie the flow of...
SciShow
We Still Can't Find the First Stars in the Universe | SciShow News
Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
TED Talks
TED: How your nature photos can help protect wild animals | Tanya Berger-Wolf
We're losing animal and plant species at such a swift, unprecedented rate that it's nearly impossible to keep up. Computational biologist Tanya Berger-Wolf demonstrates how harnessing the power of artificial intelligence and one of the...
Crash Course
How Does Air Temperature Shape a Place Crash Course Geography
Today, we’re going to visit Siberia and take a closer look at how temperatures there (and around the globe) impact the way cultures, communities, and landscapes form. Air temperature plays a much bigger role than just helping us decide...
Crash Course
More Stereochemical Relationships - Crash Course Organic Chemistry
Enantiomers have almost all the same chemical and physical properties, so it can be tough to separate them. But it’s still super important that we know how to tell them apart! In this episode of Crash Course Organic Chemistry, we’ll...
SciShow
PLASMA RAIN?
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SciShow
Why We Didn't Know How Long a Venus Day Was
Researchers have finally determined how long a day on Venus is, give or take an episode of Brooklyn 99.
TED Talks
Bruce Schneier: The security mirage
The feeling of security and the reality of security don't always match, says computer-security expert Bruce Schneier. In his talk, he explains why we spend billions addressing news story risks, like the "security theater" now playing at...
TED Talks
TED: Meet Spot, the robot dog that can run, hop and open doors | Marc Raibert
That science fiction future where robots can do what people and animals do may be closer than you think. Marc Raibert, founder of Boston Dynamics, is developing advanced robots that can gallop like a cheetah, negotiate 10 inches of snow,...
TED Talks
TED: The creative power of your intuition | Bozoma Saint John
Great ideas are like electricity -- they snap into sharp focus and sprint from place to place. What's the best way to capture them? Bozoma Saint John, Chief Marketing Officer at Netflix, makes a compelling case to move away from an...
Crash Course
Stereochemistry - Crash Course Organic Chemistry
The shape of molecules is super important to life as we know it. In this episode of Crash Course Organic Chemistry we’re learning about stereochemistry and how to identify molecules as chiral or achiral. And as always, we’ll be doing a...
TED-Ed
TED-Ed: How one scientist averted a national health crisis - Andrea Tone
In 1960, Frances Kelsey was one of the Food and Drug Administration's newest recruits. Before the year was out, she would begin a fight that would save thousands of lives - though no one knew it at the time. Andrea Tone explains how...
Crash Course
ANOVA Part 2 Dealing with Intersectional Groups - Crash Course Statistics
Do you think a red minivan would be more expensive than a beige one? Now what if the car was something sportier like a corvette? Last week we introduced the ANOVA model which allows us to compare measurements of more than two groups, and...
TED Talks
TED: How I hacked online dating | Amy Webb
Amy Webb was having no luck with online dating. The dates she liked didn't write her back, and her own profile attracted crickets (and worse). So, as any fan of data would do: she started making a spreadsheet. Hear the story of how she...
SciShow
The Next X Prize: Artificial Intelligence!
Hank takes you to the next frontier of innovation: the XPrize for Artificial Intelligence, talking about how true AI can be measured, and what the future might look like.