SSS 2012-04-17

This is Scientific American 60 second Science I am Sophie Bushwick, got a minute? As it ages, white paper turns a distinctive yellow. But why? To find out, scientists artificially aged modern paper to reveal the changes on the molecular level. The re

SSS 2012-04-18

As it ages white paper turns a distinctive yellow. But why? To find out, scientists artificially aged modern paper to reveal the changes on the molecular level. The research is in the Journal Physical Review Letters. For 48 days, three unbleached pap

SSS 2012-04-02

The dengue virus depends on mosquitoes to get around, but the virus may have evolved a way to speed its spread by manipulating the behavior of masquito hosts. It makes them more blood thirsty, to quicker find a blood meal than their uninfected counte

美国科学60秒 SSS 2012-09-04

Humans have shaped the evolution of animals for as long as we have been catching and eating them. In the days of spear hunting, speed and boldness were survival assets. But with today's high-powered rifles, the tables have turned. Animals that speed

美国科学60秒 SSS 2012-10-05

A rabbit might outrun a fox, but stalks of wheat arent making any quick getaways. Plants, for the most part, dont flee from predators. But some primitive marine plants are breaking the rules. Marine scientists at the University of Rhode Island School

美国科学60秒 SSS 2012-10-08

They say the beauty is in the eye of the holder. For f* Rainbow f*, that's definitely right. That's in right eye. The birds depend on their right eye for scoping out potential mates. Many males are choosy when picking a partner and the Rainbow or goo

美国科学60秒 SSS 2012-10-09

Sauropods like Brachiosaurus and Diplodocus were the biggest beasts to ever roam the Earth. And these dinosaurs had enormously long necks. Which poses an anatomical problem: they needed to move their necks side to side and up and down to graze, but t

美国科学60秒 SSS 2012-10-10

Nobel weeka fine time to celebrate sciences most notable achievements. As you raise your glass to this years laureates, why not toast one of chemistrys most delectable discoveries. Because its the 100th anniversary of the Maillard reaction, without w

美国科学60秒 SSS 2012-10-12

Hair helps keep you warm, right? But hair can also keep you cooler than bare skin, as long as the hair is not too thick. So says a study in the journal PLoS ONE. Researchers studied elephants, which have very thin coats of hair. It's easy for the bea

美国科学60秒 SSS 2012-10-15

This is Scientific American-60 Second Science. I am Christopher Intagliata. Gotta a minute？ Hair helps keep you warm, right? But hair can also keep you cooler than bare skin, as long as the hair is not too thick. So says a study in a journal-Plus O

美国科学60秒 SSS 2012-11-01

Tuberculosis killed 1.4 million people last year. One reason TB is so deadly is that TB bacteria mutate quickly. But some scientists are hoping to get a step ahead of TBs changes in the future by studying its past evolution. Remnants of TB genes can

美国科学60秒 SSS 2012-11-02

This is Scientific Americans 60-Second Science. Im Gretchen Cuda Kroen. Got a minute? Nasty bacteria cling to the surfaces of countertops. They also stick to medical devices - like catheters - that are placed inside the human body, where they can bec

美国科学60秒 SSS 2012-11-05

In a recent podcast, we heard the beluga whale NOC change his voice's rhythm and pitch to imitate human speech. Pretty impressive, but you ain't heard nothing yet. M K, an Asian elephant that appears to form actual words. Thats annyong,Korean for hel

美国科学60秒 SSS 2012-11-06

Getting out grandmas good [flat work] for the holidays? Then youre probably dreading the time it takes to polish up that silver. Now imagine youre in charge of the silver collection at the metropolitan museum of art. Fortunately, for art conservators

美国科学60秒 SSS 2012-11-07

We want our kids to grow up in a country where they have access to the best schools and the best teachers, a country that lives up to its legacy is the global leader and technology and discovery and innerbation, with all the good jobs and new busines

美国科学60秒 SSS 2012-11-08

Crampfish became famous thanks to the movie Finding Nimo. In real life, their social hierarchy is simple, larger fish dominate their smaller counterparts. Now we know that to reinforce the social structure, the fish communicate with aggressive and su

美国科学60秒 SSS 2012-11-09

Rising seas and severe storms are the most talked-about threats of climate change, but here's another, no more coffee. Because rising temperatures may cripple wild populations of / coffee, the most cultivated species in the world. So says a study in

美国科学60秒 SSS 2012-11-12

Rising season severe storm is the most talked about threats of climate change. But here is another. No more coffee. Because rising temperatures make cripple wild populations of Arabica coffee, and most cultivated species in the world. So says a study

美国科学60秒 SSS 2012-11-13

I've always thought that when I get a fever, it's my body trying to make things uncomfortable for the invading pathogen. And that's often true - higher temperatures can inhibit the bad guys' ability to replicate. But my fever may actually be a one-tw

美国科学60秒 SSS 2012-11-14

Imagine if you could focus your nose the way you focus your eyes. Scientists now believe that animals with a highly developed sense of smell like rats and dogs, do just that. Similar to the way we taste sweet, salty sour and bitter on different parts