| 栏目广告位一 |
科学美国人60秒:Bees Have a Goldilocks Lawn Mow Schedule
Add up every golf course, athletic field, industrial park, and yard in the U.S. and you have an area nearly the size of Florida. Upon first glance, all that lawn might seem a biolo
科学美国人2018-04-26-
科学美国人60秒:If Singing's Tough, Try Whistling
Next time you find yourself at a karaoke bar, let me suggest a song:
科学美国人2018-04-24
Otis Redding's "Sitting on the Dock of the Bay."
<<Otis Redding clip with whistling>>
The reason? I -
科学美国人60秒:Traffic Deaths Increase after 4:20 P.M. on 4/20
Tomorrow is April 20th—4/20. It’s sometimes called a “High Holiday”. Because for a lot of people, 4/20 is Marijuana Day. And for them it’s kind of a t
科学美国人2018-04-24 -
科学美国人60秒:NYC Mice Are Packed with Pathogens
Rats. They’re a defining feature of life in New York City, rustling in trash bags, scurrying along the subway tracks—and becoming famous for occasionally eating pizza.
科学美国人2018-04-20 -
科学美国人60秒:Mine Social Media Posts to Predict Flu
Hi, I’m Scientific American podcast editor Steve Mirsky. And here’s a short piece from the April issue of the magazine, in the section we call Advances: Dispatches from
科学美国人2018-04-19 -
科学美国人60秒:Planting Milkweed for Monarchs? Make Sure It's Native
Monarch butterflies depend on milkweed. They lay their eggs on milkweed, and their caterpillars eat only the leaves of the plant. No milkweed means no monarchs. So the best way to
科学美国人2018-04-18 -
科学美国人60秒:The Internet Needs a Tune-Up
“So, the internet is really a network of networks that underlies critically so many things in our lives. But really 50 years ago it was an experiment that escaped from the la
科学美国人2018-04-17 -
科学美国人60秒:Glacier Suddenly Goes Galloping
Hi, I’m Scientific American podcast editor Steve Mirsky. And here’s a short piece from the April issue of the magazine, in the section we call Advances: Dispatches from
科学美国人2018-04-16 -
科学美国人60秒:Some Habitable Zone Exoplanets May Get X-Rayed Out
As astronomers hunt for habitable, Earth-like worlds, one popular place to look is around M stars, a type of red dwarf. Couple reasons for that:
科学美国人2018-04-13
"First of all most of the stars in -
科学美国人60秒:Right Whales Seem to Think before They Speak
As animals grow, the sounds they make change. But some sounds continue to change, even after an animal matures. That's true for humans, and now it turns out to be true for North A
科学美国人2018-04-12 -
科学美国人60秒:Old New England Underground May Be Spry after All
Hi, I’m Scientific American podcast editor Steve Mirsky. And here’s a short piece from the April issue of the magazine, in the section we call Advances: Dispatches from
科学美国人2018-04-10 -
科学美国人60秒:Brain Scan Might Reveal Appetite for Risk
Here's the gamble: Twenty bucks guaranteed…or a 50/50 chance of winning sixty bucks?
科学美国人2018-04-09
Which would you choose?
The answer might actually be evident in a brain scan, accordi -
科学美国人60秒:Neandertal Face Shape Was All Over the Air
Neandertal walks into a bar. Bartender says, “Why the long, forward-projecting face?” Well, according to a new study, it helped the Neandertal air-condition the large v
科学美国人2018-04-08 -
科学美国人60秒:Rev Up Photosynthesis to Boost Crop Yields
“Photosynthesis is surprisingly inefficient, only of the order of 1 to 2 percent. And one of the main culprits is an enzyme called RuBisCo.”
科学美国人2018-04-08
Laura Barter, a biological -
科学美国人60秒:13,000-Year-Old Footprints under West Coast Beach
During the last ice age, the northern half of North America was blanketed by ice. But along the Pacific coast of Canada, some land remained bare…a place where animals and pl
科学美国人2018-04-04 -
科学美国人60秒:Math Cracks a Knuckle-Cracking Mystery
<<knuckle-cracking sound>>
科学美国人2018-04-03
Knuckles cracking. You may not mind the sound. You may despise it. Or you could study it.
Couple years back, Vinny Suja was taking a biomechanics class -
科学美国人60秒:Rotting Flesh Offers Insight on Fossilization
The fossil record is far from being a complete library of everything that's ever lived.
科学美国人2018-04-03
"The vast, vast majority of everything that's ever lived has completely decayed away, bon -
科学美国人60秒:Ravens Crow with Individual Flair
There's a well-known conspiracy of ravens—that's what you call a group of ravens—that likes to hang out near a zoo in the Austrian Alps. Every day these ravens conspi
科学美国人2018-03-27 -
科学美国人60秒:U.S. Flu Spread Counts On Southern Cold Snaps
If you’ve got the flu, your focus is on getting better—not on how you caught it. But from a public health standpoint, tracking how flu spreads can help keep the virus c
科学美国人2018-03-26 -
科学美国人60秒:Louise Slaughter Was Congress's Food Safety Champion
“Legislation to restrict the current overuse, I would say abuse, of antibiotics by farmers who raise livestock for human consumption.”
科学美国人2018-03-22
Louise Slaughter, member of Cong -
科学美国人60秒:Arctic Heat Waves Linked to Snowpocalypse-Like Storms
February was unusually hot in the Arctic. Thawing out temperature: 35 degrees Fahrenheit."It made big news when it got to 35, I don't know if that's T-shirt weather yet, but&hell
科学美国人2018-03-21 -
科学美国人60秒:Gut Parasites Have Their Own Gut Microbiomes
The whipworm is a parasite that infects half a billion people around the world. It lives in the gut—burying its head in the large intestine, causing symptoms like nausea, abd
科学美国人2018-03-19 -
科学美国人60秒:Drones Could Help Biologists Tally Birds
Ecologists crouching quietly amidst vegetation, using binoculars to tally birds in a roost, may soon be a charming relic of the past. Because a new study shows that, when it comes
科学美国人2018-03-16 -
科学美国人60秒:Saliva Protein Might Inhibit Intestinal Anarchy
Every day, you produce one to two liters of spit. It kick-starts digestion and helps you swallow. And it helps prevent bacterial infection in your mouth.
科学美国人2018-03-13
"But that still seemed li -
科学美国人60秒:Searching the Heavens for Mountains
In the last few decades, astronomers have discovered thousands of exoplanets orbiting other stars. Now, scientists want to know what they look like. Do they have oceans? Atmosphere
科学美国人2018-03-12
| 栏目广告位二 |
手机网站