Typical spacecrafts orbiting the Earth aren’t extremely far away. They’re only a few hundred miles above our heads. So, when it’s time to return to solid ground, it’s a relatively short trip.However, spacecrafts and similar objects in orbit are also moving at exceptionally high speeds. We’re talking 17,000 mph for a low-Earth orbit satellite or spacecraft, and even faster for higher orbits.Combined, these two factors create a dilemma — and a whole lot of heat — when bringing spacec ...read more
Drug overdose deaths have skyrocketed in the U.S. in recent years. In 2021, 106,699 people died of overdoses. According to the Centers for Disease Control and Prevention, that number was up 14 percent from the year before. Experts contend that it’s not that more people are using drugs; it’s that the drug supply has been contaminated with highly potent fentanyl, a synthetic opioid that is 50 times stronger than heroin. Overdose deaths that included fentanyl increased by 22 percent last year ...read more
[embedded content]Debate continues as to the origins of the COVID-19 pandemic, propelled in part by U.S. Department of Energy and the Federal Bureau of Investigation, which conducted their own investigations. Both issued tentative conclusions that the disease originated in a scientific facility, fueling the lab leak theory. But scientists point to a likely animal source, ranging from horseshoe bats to raccoon dogs to even outer space.We’ve been here before with new diseases, according to epide ...read more
In 1895, seven men from the Norwegian whaling ship Antarctic made the first substantiated landing on the Antarctic continent. But four long decades passed before a woman could claim the same.Antarctica, with its extreme temperatures and barren wastelands, was viewed for many years as the perfect battleground for men seeking to prove their mettle. Having a woman there, according to popular belief, would merely invite distraction and “sexual problems.”And yet, in the decades since a woman did ...read more
This article contains affiliate links to products. Discover may receive a commission for purchases made through these links.You may be unconscious while you’re sleeping but your body is anything but idle. Depending on which stage of sleep you’re in, your brain and body could be very active. Your body goes through changes in respiration, brain activity, hormone production, and cardiac activity during sleep but one of the first changes to occur is a drop in body temperature. Body temperature ...read more
Author Vishay SinghPosted on Categories Discover Magazine
