Brain fun for curious people.
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Covering everything about science and technology -- from the outer reaches of space to the tiniest microbes in our bodies -- Science Friday is your source for entertaining and educational stories and activities. Each week, host Ira Flatow interviews scientists and inventors like Sylvia Earle, Elon Musk, Neil deGrasse Tyson, and more.
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787: Right-To-Repair Laws Gain Steam In State Legislatures
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If you have a problem with your phone, like a bad battery or a cracked screen, you might decide to just buy a new one. That’s partly because we don’t have a lot of options to repair our devices: Manufacturers can make it extraordinarily difficult—or expensive—to do so. But for years now, the right-to-repair movement in the US has been pushing for l…
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Right-To-Repair Laws Gain Steam In State Legislatures
12:19
12:19
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12:19
If you have a problem with your phone, like a bad battery or a cracked screen, you might decide to just buy a new one. That’s partly because we don’t have a lot of options to repair our devices: Manufacturers can make it extraordinarily difficult—or expensive—to do so. But for years now, the right-to-repair movement in the US has been pushing for l…
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Starliner Crewed Test Flight Rescheduled | Slugs And Snails Like Cities
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21:51
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The much-delayed crewed test flight is back on the calendar, despite a helium leak. Also, researchers used data from the crowd-sourcing nature observation app iNaturalist to rank animals’ tolerance of urban environments. Starliner Crewed Test Flight Rescheduled For This Weekend A long-delayed test flight of Boeing’s Starliner spacecraft is back on …
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786: Starliner Crewed Test Flight Rescheduled | Slugs And Snails Like Cities
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The much-delayed crewed test flight is back on the calendar, despite a helium leak. Also, researchers used data from the crowd-sourcing nature observation app iNaturalist to rank animals’ tolerance of urban environments. Starliner Crewed Test Flight Rescheduled For This Weekend A long-delayed test flight of Boeing’s Starliner spacecraft is back on …
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Your ‘Biological Age’ Could Be Different Than How Old You Are
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17:32
Aging often looks very different on different people. There are some 70-year-olds that exercise regularly, have no trouble going for a walk around the block, and remain mentally sharp. Others really struggle at 70, and aren’t able to maintain a quality of life they’ve had in the past. There’s a growing field of medicine dedicated to better understa…
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783: Your ‘Biological Age’ Could Be Different Than How Old You Are
18:26
18:26
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18:26
Aging often looks very different on different people. There are some 70-year-olds that exercise regularly, have no trouble going for a walk around the block, and remain mentally sharp. Others really struggle at 70, and aren’t able to maintain a quality of life they’ve had in the past. There’s a growing field of medicine dedicated to better understa…
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High-Speed Rail Gets A Boost In The U.S.
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While the US was known for its railroads in the 1800s, we’ve fallen behind places like Japan, China, and Europe, which have invested in trains that go upwards of 200 miles per hour. There are economic, environmental, and practical benefits of electrified high-speed rail. But for generations, the US decreased passenger rail service and invested inst…
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782: High-Speed Rail Gets A Boost In The U.S.
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17:24
While the US was known for its railroads in the 1800s, we’ve fallen behind places like Japan, China, and Europe, which have invested in trains that go upwards of 200 miles per hour. There are economic, environmental, and practical benefits of electrified high-speed rail. But for generations, the US decreased passenger rail service and invested inst…
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Using A Lab On Wheels To Study Weed From Dispensaries
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17:57
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17:57
Cannabis is legal in some form or another in over half of US states. But federally, it’s illegal and has no accepted medical use. However, the Biden administration is moving to reclassify cannabis as a less dangerous drug under the Controlled Substances Act. Studying strictly controlled drugs like cannabis is a major challenge for scientists, becau…
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781: Using A Lab On Wheels To Study Weed From Dispensaries
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19:06
Cannabis is legal in some form or another in over half of US states. But federally, it’s illegal and has no accepted medical use. However, the Biden administration is moving to reclassify cannabis as a less dangerous drug under the Controlled Substances Act. Studying strictly controlled drugs like cannabis is a major challenge for scientists, becau…
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Jelly Creatures That Swim In Corkscrews | Keeping Wind Turbines Safe For Birds
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For the first time, scientists have recorded how salps form chains and swim in corkscrews to reach the ocean’s surface each night. Also, a wind utility company in Wyoming is trying to make wind turbines more visible to birds by painting just one blade black. The Small Jelly Creatures That Link Up And Swim in Corkscrews Salps are small, transparent …
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780: Jelly Creatures That Swim In Corkscrews | Keeping Wind Turbines Safe For Birds
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For the first time, scientists have recorded how salps form chains and swim in corkscrews to reach the ocean’s surface each night. Also, a wind utility company in Wyoming is trying to make wind turbines more visible to birds by painting just one blade black. The Small Jelly Creatures That Link Up And Swim in Corkscrews Salps are small, transparent …
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Zapping Nerves Into Regrowth | Celebrating the Maya Calendar In Guatemala’s Highlands
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An early study found that electrical stimulation could improve hand and arm function in people with spinal cord injuries. Also, for thousands of years, Indigenous communities in Guatemala have used observations and mathematics to track astronomical events. Zapping Nerves Into Regrowth Results of an early trial published this week in the journal Nat…
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779: Zapping Nerves Into Regrowth | Celebrating the Maya Calendar In Guatemala’s Highlands
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22:38
An early study found that electrical stimulation could improve hand and arm function in people with spinal cord injuries. Also, for thousands of years, Indigenous communities in Guatemala have used observations and mathematics to track astronomical events. Zapping Nerves Into Regrowth Results of an early trial published this week in the journal Nat…
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778: Fine-Tuning Grapes For Iowa’s Wine Industry
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Did you know that almost all the wine we drink, no matter what color it is or where it’s produced, comes from a grape species called Vitis vinifera? But these grapes can’t survive the cold, harsh winters of Iowa, so researchers at Iowa State University are growing special varieties that can withstand a wider range of temperatures. Through this effo…
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Fine-Tuning Grapes For Iowa’s Wine Industry
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Did you know that almost all the wine we drink, no matter what color it is or where it’s produced, comes from a grape species called Vitis vinifera? But these grapes can’t survive the cold, harsh winters of Iowa, so researchers at Iowa State University are growing special varieties that can withstand a wider range of temperatures. Through this effo…
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777: How To Recycle Rare Earth Elements
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19:01
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Rare earth elements are a group of 17 metals used in a wide range of things that make modern life possible, including batteries, magnets, LED light bulbs, phone screens, and catalytic converters. These elements are essential to a green economy because they are integral to many technologies designed to have low environmental impact. However, mining …
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Rare earth elements are a group of 17 metals used in a wide range of things that make modern life possible, including batteries, magnets, LED light bulbs, phone screens, and catalytic converters. These elements are essential to a green economy because they are integral to many technologies designed to have low environmental impact. However, mining …
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776: New Evidence Questions Dark Energy’s ‘Constant’ Nature
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After the Big Bang, the universe expanded rapidly. And, once upon a time, conventional wisdom held that that expansion would eventually slow, dragged back inwards by the gravitational pull of all the matter in the universe. But in 1998, two groups studying supernovae discovered that not only was the universe continuing to expand, but that the expan…
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New Evidence Questions Dark Energy’s ‘Constant’ Nature
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18:47
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18:47
After the Big Bang, the universe expanded rapidly. And, once upon a time, conventional wisdom held that that expansion would eventually slow, dragged back inwards by the gravitational pull of all the matter in the universe. But in 1998, two groups studying supernovae discovered that not only was the universe continuing to expand, but that the expan…
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New Guidelines Recommend Earlier Breast Cancer Screening
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17:31
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The U.S. Preventive Services Task Force has updated its recommendations for breast cancer screening once again. The recommendations now stipulate that women and people assigned female at birth should begin getting mammograms at age 40, and continue every other year until age 74. The previous guidelines recommended beginning screening at age 50. The…
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775: New Guidelines Recommend Earlier Breast Cancer Screening
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18:24
The U.S. Preventive Services Task Force has updated its recommendations for breast cancer screening once again. The recommendations now stipulate that women and people assigned female at birth should begin getting mammograms at age 40, and continue every other year until age 74. The previous guidelines recommended beginning screening at age 50. The…
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New Rule Sets Stage For Electric Grid Update | Harnessing Nanoparticles For Vaccines
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Upgrades to the power grid under a new rule could help accommodate an increasing renewable energy supply and meet data center demands. Also, extremely small particles might help scientists develop vaccines that are stable at room temperature and easier to administer. New Rule Sets Stage For Electric Grid Update The US electric grid is straining to …
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773: New Rule Sets Stage For Electric Grid Update | Harnessing Nanoparticles For Vaccines
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Upgrades to the power grid under a new rule could help accommodate an increasing renewable energy supply and meet data center demands. Also, extremely small particles might help scientists develop vaccines that are stable at room temperature and easier to administer. New Rule Sets Stage For Electric Grid Update The US electric grid is straining to …
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772: How Climate Change Is Changing Sports
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18:49
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18:49
Sports are a critical part of human culture just about everywhere in the world. Maybe you played little league as a kid, or like to go to the park for a game of pickup basketball, or even just cheer for your favorite team on the weekends. Unfortunately, like so many other things, climate change is taking a toll on the world of sports. It’s getting …
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How Climate Change Is Changing Sports
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17:46
Sports are a critical part of human culture just about everywhere in the world. Maybe you played little league as a kid, or like to go to the park for a game of pickup basketball, or even just cheer for your favorite team on the weekends. Unfortunately, like so many other things, climate change is taking a toll on the world of sports. It’s getting …
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