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April 18, 2025
Are traffic engineering decisions based on evidence-based research? Not as much as you might think. Plus, researchers captured the first confirmed video of a colossal squid swimming in its natural habitat. And, with brain-implanted devices, people with paralysis have been able to command computers to “move” virtual objects and speak for them.
4:36
The Pros and Cons of Potential Development in National Parks
What are the impacts of more tourists and development at Grand Canyon National Park?
17:32
How Much Math Should Everyone Know? (Show Your Work.)
Educators argue over how to shake up math education, like ditching pre-calculus and emphasizing real-world thinking.
11:47
Where Do We Stand in the Fight Against Zika?
The viral storm has made landfall in the U.S, but a vaccine remains elusive.
22:40
The SciFri Book Club Talks ‘Oryx and Crake’
What can Margaret Atwood’s dystopia tell us about the here-and-now?
11:24
Decoding The Hacks Of ‘Mr. Robot’
Kor Adana, a writer for Mr. Robot, unpacks the toolkit of real-life hackers that inspired the show.
15:52
A Hand, a Fin, a Gene
What a fish and a rare amphibian can tell us about how limbs develop, grow, and even re-grow.
7:57
A Quantum Satellite, 500-Year Floods, and Scanning Your Purchases
Science journalist Amy Nordrum describes a Chinese experiment designed to test quantum communication systems. Plus, why scanning your own groceries could lead to sticky fingers.
00:17:03
The Spicy Science of Chili Peppers
What gives the hot habanero and mild jalapeño their “heat profile”?
00:12:02
Our Bodies May Fight Infection Better by Day
Mice appear to be more susceptible to viral infection during their sleep cycle, suggesting that circadian rhythms can affect our immune systems.
16:46
A Fast-Paced Thriller That’s a Tour Through the Multiverse
In “Dark Matter,” Blake Crouch crafts a thriller based on physics’ spookiest phenomena.