美国科学60秒 SSS 2013-04-30

what makes someone`s sound sexy? to get the scientific viewpoint, researchers gaged volunteers responses to different voices.the conclusion: voices considered to be attractive said messages about body size, the workers journal plus one.in the animal

美国科学60秒 SSS 2013-04-29

When the first shots were fired at JFK's murder case,police couldn't immediately locate the gunman based on the sound alone. Today, the technology exists for them to do it with their smart phones,less than a second after the first shot. Here's how, m

美国科学60秒 SSS 2013-04-18

If you've ever tried out a flirt up at a party or a club or maybe a construction side, you'll know it can be tough making yourself heard above the din. One solution is to go home and text your love interest. But a more immediate one, is to shout. And

美国科学60秒 SSS 2013-04-16

Day and night existed long before the first primitive cells coming into being. And that light/dark cycle left its mark on nearly every living thing, microbes, plants, insects, mammals---we all experience circadian rhythms, due to molecular clocks in

美国科学60秒 SSS 2013-05-28

We've discovered that Vitamin C kills MT cells. TB research William Jacob, with the Albert Einstein College of Medicine in the Bronx. And in fact it works not only on the multidrug-resistent strains but totally drug-resistent strains as well. Jacobs

美国科学60秒 SSS 2013-01-11

This is Scientific Americans 60 second Science, I am GretchenKuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as

科学美国人60秒 SSS 2013-09-18

This Scientific American 60 Second Science, I'm Sophie Bushwick, got a minute.Developed countries spend about 3 percent of all their electrical power treating waste water, the juice purified contaminated material so it can be returned safely to the e

科学美国人60秒 SSS 2014-01-31

You see it when you watch almost any game:theres a touchdown, a home run, a goal. An athlete has triumphed! And then,almost instantly they raise their arms over their shoulders, shout aggressivelyand push out their chest. Like an animal in the wild o

科学美国人60秒 SSS 2014-07-31

Pack rat. The name is synonymous with hoarding. And researchers have learned that pack rats can actually increase the range of foods theyre able to eat because of their collection of gut bacteria. Pack rats live in the American Southwest, where they

科学美国人60秒 SSS 2014-07-30

When you think of birds, you probably imagine their dazzling plumage or their beautiful songs. But since the days of Darwin, scientists have figured that individual species of birds should not have both: theyd either be drab virtuosos or eye candy th

科学美国人60秒 SSS 2014-08-20

Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa

科学美国人60秒 SSS 2014-01-06

The warm waste environment of your mouth makes it a great place for bacteria, some of which keep busy causing cavities. Such dental difficulties were thought to a really taken-off for we switch from hunting gathering to agriculture and had a ready su

科学美国人60秒 SSS 2014-09-22

Sixty-six million years ago, the meteorite, a rock over six miles wide, slammed into the earth and you know what happened next, the dinos disappeared. but Benjemin Blunder, a planty ecologist at the University of Arizona, says , consider the picture

科学美国人60秒 SSS 2014-10-21

Coyotes. In the last two decades theyve become common in almost every North American metropolitan area. Stanley Gehrt is a wildlife ecologist at Ohio State University who studies urban coyotes in Chicago. He spoke October 20th at the ScienceWriters20

科学美国人60秒 SSS 2014-10-16

This is Scientific American 60-second Science.I'm Steve Mersky.Got a minute? People have been leaving messages on bathroom walls for thousands of years,just google'ancient Roman bathroom graphy'.Well,we are not the only ones to use the ? for informat

美国科学60秒 SSS 2015-01-27

This is scientific America 60s science. I'm Steve Mursky. Got a minute?One of the aspirational letter is between now and 2030 to cut by 2/3 maternal mortality. Doctor Susan D`Helment is CEO of the ? Gates Foundation. On Jan 26th, she spoke with the s

美国科学60秒 SSS 2015-01-22

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

美国科学60秒 SSS 2015-01-28

Winter is high time for humidifiers because dry air can irritate your throat. But a new study finds that arid conditions might have an influence on the development of the very languages that some people speak. Extensive research on human physiology s

美国科学60秒 SSS 2015-01-30

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Planning to attend a Super Bowl party in Boston or Seattle this Sunday? If so, you might think twice about sticking your chips in the communal dip. Because

美国科学60秒 SSS 2015-05-26

Foldable white canes help the visually impaired navigate their surroundings, but the guide stick's tactile (preceptible by touch or apparently so) nature offers only so much information. The cane's user must manually find and avoid obstructions, but