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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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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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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…
  continue reading
 
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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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…
  continue reading
 
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 …
  continue reading
 
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…
  continue reading
 
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…
  continue reading
 
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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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…
  continue reading
 
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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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 …
  continue reading
 
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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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 …
  continue reading
 
Tinnitus, a condition commonly described as a persistent ringing in the ears, affects millions of people around the world. In the US, the prevalence of tinnitus is estimated at around 11% of the population, with 2% affected by a severe form of the condition that can be debilitating. But despite it being so common, the exact causes of some tinnitus,…
  continue reading
 
Tinnitus, a condition commonly described as a persistent ringing in the ears, affects millions of people around the world. In the US, the prevalence of tinnitus is estimated at around 11% of the population, with 2% affected by a severe form of the condition that can be debilitating. But despite it being so common, the exact causes of some tinnitus,…
  continue reading
 
Wildlife ecologist Dr. Rae Wynn-Grant has tracked bears through the mountains, lived with lions, been chased by elephants, and trekked after lemurs in a rainforest. Now, she co-hosts the renowned nature television show “Mutual of Omaha’s Wild Kingdom Protecting the Wild.” Dr. Wynn-Grant’s new memoir, Wild Life: Finding My Purpose in an Untamed Worl…
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Wildlife ecologist Dr. Rae Wynn-Grant has tracked bears through the mountains, lived with lions, been chased by elephants, and trekked after lemurs in a rainforest. Now, she co-hosts the renowned nature television show “Mutual of Omaha’s Wild Kingdom Protecting the Wild.” Dr. Wynn-Grant’s new memoir, Wild Life: Finding My Purpose in an Untamed Worl…
  continue reading
 
The Field Museum has unveiled a new specimen of Archaeopteryx, a species that may hold the key to how ancient dinosaurs became modern birds. Also, a “green glacier” of trees and shrubs is sliding across the Great Plains, burying some of the most threatened habitat on the planet. Remarkably Well-Preserved Archeopteryx Specimen Unveiled The Field Mus…
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The Field Museum has unveiled a new specimen of Archaeopteryx, a species that may hold the key to how ancient dinosaurs became modern birds. Also, a “green glacier” of trees and shrubs is sliding across the Great Plains, burying some of the most threatened habitat on the planet. Remarkably Well-Preserved Archeopteryx Specimen Unveiled The Field Mus…
  continue reading
 
Astronomers have confirmed they found an atmosphere around an Earth-like rocky exoplanet for the first time. Also, Boeing’s Starliner craft was scheduled to carry humans to the International Space Station in 2017. Its launch is now set for May 17, 2024. In A First, JWST Detects An Atmosphere Around A Rocky Exoplanet Earlier this week, astronomers a…
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Astronomers have confirmed they found an atmosphere around an Earth-like rocky exoplanet for the first time. Also, Boeing’s Starliner craft was scheduled to carry humans to the International Space Station in 2017. Its launch is now set for May 17, 2024. In A First, JWST Detects An Atmosphere Around A Rocky Exoplanet Earlier this week, astronomers a…
  continue reading
 
The first Women’s World Cup was in 1991, and the games were only 80 minutes, compared to the 90-minute games played by men. Part of the rationale was that women just weren’t tough enough to play a full 90 minutes of soccer. This idea of women as the “weaker sex” is everywhere in early scientific studies of athletic performance. Sports science was m…
  continue reading
 
The first Women’s World Cup was in 1991, and the games were only 80 minutes, compared to the 90-minute games played by men. Part of the rationale was that women just weren’t tough enough to play a full 90 minutes of soccer. This idea of women as the “weaker sex” is everywhere in early scientific studies of athletic performance. Sports science was m…
  continue reading
 
At first glance, Mars might seem rather different from our own planet. Mars is dry, with little atmosphere, and no liquid water on its surface. It is half the size of Earth, lacks a planetary magnetic field, and does not appear to have active plate tectonics or volcanic activity. In some ways it is a world frozen in time, affected only by the force…
  continue reading
 
At first glance, Mars might seem rather different from our own planet. Mars is dry, with little atmosphere, and no liquid water on its surface. It is half the size of Earth, lacks a planetary magnetic field, and does not appear to have active plate tectonics or volcanic activity. In some ways it is a world frozen in time, affected only by the force…
  continue reading
 
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