The sun may be setting on NASA’s plans to build a space-based solar power (SBSP) satellite system to alleviate our energy needs on Earth. In January, the agency released a report that, citing launch costs specifically, concludes that generating power from orbit is simply too expensive, especially compared with solar power made right here on… Continue reading NASA’s Hopes for Space Solar Power Are Looking Dim
Tag: Quantum Stuff
How Arguments that Embryos Are People Pose a Threat to IVF
On February 16 the Alabama Supreme Court brought fertility care in that state to a screeching halt—and started a national conversation—by declaring that frozen embryos were people in the eyes of the law. In support of its decision, the court cited a 19th-century Alabama statute, the state’s constitution and, in a memorable concurrence from Chief… Continue reading How Arguments that Embryos Are People Pose a Threat to IVF
The Physics of Cold Water May Have Jump-Started Complex Life
Modern-day algae are not early animals. But the fact that these physical pressures forced a unicellular creature into an alternate way of life that was hard to reverse feels quite powerful, Simpson said. He suspects that if scientists explore the idea that when organisms are very small, viscosity dominates their existence, we could learn something… Continue reading The Physics of Cold Water May Have Jump-Started Complex Life
Paying Attention to Sensations Can Help Reset the Mind
Having grown up in the Danish city of Copenhagen, chef René Redzepi recalls feeling dissatisfied with the fast-food world to which many city-dwellers were accustomed. He instead attributes his love for food to his summers in Macedonia, which were filled with farm life and foraging in the nearby woods. Despite the lack of technological sophistication,… Continue reading Paying Attention to Sensations Can Help Reset the Mind
Biden’s State of the Union Promises Big Job Gains from Clean Energy Policy
CLIMATEWIRE | President Joe Biden tied his climate policies to domestic manufacturing growth and union jobs in the final State of the Union address of his first term. “I’m taking the most significant action ever on climate in the history of the world,” he said Thursday night to a House chamber that featured heckles from… Continue reading Biden’s State of the Union Promises Big Job Gains from Clean Energy Policy
Lead from Old Paint and Pipes Is Still a Deadly Hazard in Millions of U.S. Homes
The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. Lead is a potent neurotoxin that causes severe health effects such as neurological damage, organ failure and death. Widely used in products such as paint and gasoline until the late 1970s, lead continues to contaminate environments and harm… Continue reading Lead from Old Paint and Pipes Is Still a Deadly Hazard in Millions of U.S. Homes
Meet the Real-Life Versions of Dune’s Epic Sandworms
Meet the Real-Life Versions of Dune’s Epic Sandworms A Dune-loving worm paleontologist makes the case that worms have been just as important on Earth as they are in the blockbuster film By Julian Nowogrodzki & Nature magazine Sandworms pursue a crowd in this scene from Dune: Part Two. Warner Bros./FlixPix/Alamy Stock Photo The film Dune:… Continue reading Meet the Real-Life Versions of Dune’s Epic Sandworms
These Invasive Ants Are Changing How Lions Hunt
Karen Hopkin: This is Scientific American’s Science Quickly. I’m Karen Hopkin. Hopkin: Why did the lion take down a buffalo instead of a zebra? Because of the big-headed ants! I know, I know. Sounds like a riddle written by a preschooler tripping on Pixie Stix and David Attenborough DVDs. But it’s actually the finding of… Continue reading These Invasive Ants Are Changing How Lions Hunt
Tight-Knit Microbes Live Together to Make a Vital Nutrient
In the radioactive bacteria, Tschitschko and his colleagues detected the Gamma A version of the nitrogenase gene. They were on its trail. However, the gene was located in an exotic genomic environment. When they sequenced the DNA of the Gamma A bacterium, most of its genome was typical of a globally distributed class of bacteria… Continue reading Tight-Knit Microbes Live Together to Make a Vital Nutrient
How the Seven Bridges of Königsberg Spawned New Math
During the 18th century the denizens of the Prussian city of Königsberg wrestled with a puzzle: How could they find a walking path through the city that crossed each of its storied seven bridges exactly once? The bridges spanned a river containing two large islands. No matter how much they strategized their routes, they couldn’t… Continue reading How the Seven Bridges of Königsberg Spawned New Math