Science Friday

Fridays from 2pm to 4pm
  • Hosted by Ira Flatow

Science Friday is a weekly science talk show, broadcast live over public radio stations nationwide. Each week is focused on science topics that are in the news. The show is dedicated to bringing an educated, balanced discussion to bear on the scientific issues at hand. Call 1-800-989-8255 to join the conversation.

Caught On Video: How DNA Replicates

Jun 24, 2017

Baby Boxes, Singing Fish, And E-DNA

Jun 24, 2017

Getting To Know The Placenta

Jun 24, 2017

Kepler Unveils A New Crop Of Exoplanets

Jun 24, 2017

Tired of jogging? There’s an exosuit for that.

Jun 20, 2017
<a href="https://unsplash.com/photos/Apj4nSemkzk">Clem Onojeghuo</a> via <a href="https://unsplash.com/license">Unsplash</a>. Image cropped.

Talk about suiting up for a jog — researchers have developed an exosuit that helps runners use less energy.

The ensemble is no stiff, Iron Man-style exoskeleton — it looks more like a pair of belted spandex shorts. In the study, recently published in Science Robotics, researchers say that wearing the suit can cut the metabolic cost of a treadmill run by 5.4 percent.

For fish, the good and bad of warming ocean waters

Jun 19, 2017

As ocean temperatures rise, what will happen to the fish we eat?

According to a recent study published in “Progress in Oceanography,” some fish species will thrive in warmer waters — and others, not so much.

Using a detailed climate model and historical observation data, researchers at NOAA and The Nature Conservancy modeled the shifting thermal habitats of over 50 species along the Atlantic coast, from North Carolina to the Gulf of Maine.

How to make bionic limbs feel more natural

Jun 18, 2017
Juan Carlos Ulate/Reuters

When you flex your bicep, your muscle sends information to your brain, allowing you to feel your muscle contract without even having to glance at it. But if you have a bionic limb, you don’t get that same sensory feedback.

“When I move my bionic ankles, I don’t feel the movement of the ankles, and when the torque increases on my bionic ankle joints, I don’t feel that torque,” says Hugh Herr, who co-directs the Center for Extreme Bionics at MIT, and whose legs are amputated below the knee.

Just how much science is in forensic science?

Jun 17, 2017
<a href="https://www.flickr.com/photos/westmidlandspolice/7170656948/">West Midlands Police</a>/<a href="https://creativecommons.org/licenses/by-sa/2.0/">CC BY-SA 2.0</a>

On TV crime shows, forensic science always just manages to pinpoint the criminal in the span of a televised hour — and with 100 percent accuracy. But in real life, forensic science doesn’t always work so smoothly.

Can The Great Lakes Stay Great?

Jun 17, 2017

The Mindset For A Milkshake

Jun 17, 2017

The story of Magnus Hirschfeld, the ‘Einstein of sex'

Jun 14, 2017
Via Undiscovered

Decades before Alfred Kinsey developed his scale for human sexuality, there was Magnus Hirschfeld — a doctor who dedicated his career to proving that homosexuality was natural.

Hirschfeld’s reasoning was simple: In turn of the 20th century Germany, where he lived, a law called Paragraph 175 made so-called “unnatural fornication” between men punishable by prison time.

<a href="https://pixabay.com/en/fidget-spinner-spinner-toys-2342845/">Myriams-Fotos</a>/<a href="https://pixabay.com/en/service/terms/#usage">CC&nbsp;BY 2.0</a>

Have you gotten your hands on a fidget spinner yet?

The brightly colored device can be spun, flipped and even tossed in one hand, and it’s been turning up in schools across the country.

Manufacturers say the fidget spinners can help relieve stress, but the toys have already been banned as distractions in some classrooms, sending kids back to the Stone Age of clicking pens and squeezing stress balls.

A Home For The Thirty Meter Telescope

Jun 10, 2017

The Sunscreen Of The Future

Jun 10, 2017

The Road To CRISPR

Jun 10, 2017

Can You Hold An Algorithm Accountable?

Jun 10, 2017
Courtesy of Delta Airlines

With stories of unhappy air travelers blanketing social media in recent months, one major airline is trying something new.

Delta Air Lines plans to install special bag-check kiosks at Minneapolis-St. Paul International Airport, giving customers the chance to skip waiting in line for an agent. One of the new kiosks will include facial-recognition technology, using a camera to confirm passengers’ faces against their passport photos.

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