美国科学60秒 SSS 2013-07-15

It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium deposits under a boat's paint. And the

美国科学60秒 SSS 2013-07-10

Lawn enthusiasts love a lush, green carpet of grass, which is why they hate crabgrass. And now, they may have one more reason to despise the weed. Because crabgrass isn't just faster-growing than the rest of the lawn. It may actually be poisoning the

美国科学60秒 SSS 2013-06-17

Ordinarily you've called it a pistachio a pistachio, but if you are for example an immigrant from China, and you've just seen a Ming vase. You might call a pistachio and a happy nut. Because visual cues can affect language in people with multiple cul

美国科学60秒 SSS 2013-06-14

Stem cells are prised for their ability to give rise to a variety of specialized cell types, including heart, liver, nerve and bone. Unfortunately, it's the stem cells from embryos that have shown the biggest potential, for generating both a range of

美国科学60秒 SSS 2013-06-13

Cheetahs reign as the fastest land mammals capable of sprinting at speeds reaching about 65 miles an hour. But when hunting in the wild, the big cats rarely reach top speed. Instead they rely on rapid acceleration and agility to catch their prey. Tha

美国科学60秒 SSS 2013-08-13

Yes, the mosquitos are swarming at this time of year. Alaska joke the B.Z. the sate bird. But have you ever looked closely the swarm making mosquitos the nuts images? It is a curious thing. The swarm maintains the kind of shape that moves around. But

美国科学60秒 SSS 2013-08-14

Two centuries ago, blackbirds typically lived out their lives in forrest habitats. Today the birds are one of the most common avian urban species. Researchers have shown that urban and rural blackbirds already differ from one another in their songs,

美国科学60秒 SSS 2013-08-15

In laps,bacteria may swim freely，but out in the world，including our bodies，bacteria often exist packed together in dense communities called biofilms. and these configurations can help them cause illness.finding clues about how such bacteria gro

美国科学60秒 SSS 2013-02-07

Adult ants communicate with pheromones, touch and even sound. Now researchers have discovered that developing ants called pupae have their own distinctive calls, which identify their social status within the colony. This finding is in the journal Cur

美国科学60秒 SSS 2013-02-01

Beneath its adorable exterior is your cat hiding the heart of killer.Researchers now estimated that each year domestic cats kill billions of birds and mammals in the United States alone.The report is in Nature Communications.We already knew that dome

美国科学60秒 SSS 2013-02-04

This is scientific American sixty seconds science, I'm Christopher Taliyatah. Got a minute？ When you think of an password for yet another online account, longer is better. Right? Well, it's true if your password is just strings and radoms of number

美国科学60秒 SSS 2013-02-05

You are a bird, you are a plane, you are a super hero. sort of. because a study finds that experience in super power and virtual environment can turn you to a dukitor in real life. the work is in the journal plus one. 60 men and women flew over a vir

美国科学60秒 SSS 2013-02-06

Clouds, they are fluffy, white and full of mystery. Although scientist may have better handle on clouds, even they don't know at all. Because the new study can show that atmosphere gases can help clouds form in a way no one had ever considered. That'

美国科学60秒 SSS 2013-02-08

A lethal dose cyanide of can take your life in minutes. It kills by blocking your cells used of oxygen, suffocating the body and brain. There are FDA approved antidote, but they are served via intravenous injection. Just imagine paramedics chucking u

美国科学60秒 SSS 2013-02-12

Taste may be the least understood of our five senses, even basic questions like where the taste bugs come from remain mysterious until now. In the study published in the journal Stem Cell, scientists identified the lose of parental cell that gives ri

美国科学60秒 SSS 2013-03-05

Women might expect to need new clothes after giving birth by a bigger pair of shoes. Well, yeah, because pregnancy can actually bland them and wide them in women's feet. Ihat's going to a study in the American Journal of Physical Pedichine and Rehabl

美国科学60秒 SSS 2013-03-01

As many San Franciscans have noticed, sourdough bread stays fresher longer than the regular stuff. Sourdoughs extended freshness is due to extra fermentation that traps more moisture in the dough. But now we know that sourdoughs longevity is also bec

美国科学60秒 SSS 2013-03-04

this is Scientific American's 60 seconds' Science, i am Karan Hawking. This will just take a minute. Secret feeling chilly? Well, they may be a solution. Because researcher has generated genetic engineering mice: the kent field the cord. They worked

美国科学60秒 SSS 2013-03-06

Unless you are a convention, speaking middle English is not going to impress a potential romantic partner in 2013. Similarly, male sparrows have to make sure their vocalization is up to date. Researchers analyze three decades of recordings of male sp

美国科学60秒 SSS 2013-03-08

Don't forget to move your clocks forward this weekend and then don't forget to be more careful on the days after you adjust your clocks. Because 2009 study found the hour of the lost sleep was related to increase job related injuries. Probably becaus