标签：Karen 相关文章
Broadcast: Feb 01, 2003 It's mid-afternoon at the DC Central Kitchen and Chef Karen Lewis is anxiously preparing hamburger meat to be used in tonight's dinner.
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Coffee before biking? You may have to stop on the side of the road sooner, but new research suggests that caffeine can help you get more bang from your w
Scientific American(四)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Spending your life hanging out at the seaside might sound like easy living. But for marine mussels, a day at the shore is no walk on the beach. Clinging
Scientific American(十)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. They say that beauty is in the eye of the beholder. It turns out that maybe speciation is, too. Because a study in the October 2nd issue of Nature sugges
Scientific American(十)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Dear diary: today I ate 3 carrot sticks while I fantasized about eating carrot cake. Alright, alright, I ate 3 pieces of carrot cake, and never once consid
Scientific American(七)月
This is Scientific American's 60-Second Science, I'm Karen Hopkin. This'll just take a minute. With temperatures approaching 100 degrees in the eastern U.S. this week, its amazing that the leaves on the trees dont simply burst into flames. Maybe one
Scientific American(六)月
This is Scientific American's 60-Second Science, I'm Karen Hopkin. This'll just take a minute. You've landed a small role in a low-budget horror movie.To get ready,you need to practice your reaction shot, you know, that look you will get when your bo
Scientific American(六)月
This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Youve probably heard of the whole six degrees of separation thing. It predicts that, on average, youre no more than six links away from any other person o
Scientific American(七)月
This is Scientific American's 60-Second Science. I am Karen Hopkin, this'll just take a minute. For years, advocates have touted the use of biofuels as a clean burning alternative to gasoline, now a pair of studies published in the Feb 8 issue of Sci
Scientific American(二)月
This is Scientific Americans 60-Second Science, I am Karen Hopkin. This will just take a minute. Somewhere along the line you've probably heard that you should drink eight glasses of water a day. Its supposed to make your skin supple, keep your organ
Scientific American(四)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin, this will just take a minute. Anyone whos ever cut up an onion knows that some smells can actually be painful. Now, researchers from Baltimore and Denver are closer to understanding why
Scientific American(三)月
This is Scientific American's 60-Second Science. I am Karen Hopkin. This'll just take a minute. Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants? Well, I guess I was thinking that p
Scientific American(二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin . This will just take a minute. When you get caught in a downpour, you probably dont think about the size of the raindrops that assault you as you run for cover. But physicists do. And
Scientific American(七)月
This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. About a billion years from now, some scientists say, the sun will be too bright for comfort, and our formerly hospitable planet will no longer be able to
Scientific American(六)月
This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa
Scientific American(五)月
This is Scientific American's 60-second Science. I'm Karen Hopkin, this will just take a minute. When it comes to lizards' sex, size dose matter. But not in the way you might think. Because in the June 4th online issue of Journal Current Biology, sci
Scientific American(六)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Think about flying and you no doubt think about air--the wind in your face, the wind at your back, the wind beneath your wings. Now physicists note that li
Scientific American(十二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Ah, daydreaming. Is there anything more pleasant than sitting back and letting your thoughts drift? Well, yes: not letting your thoughts drift, for one.
Scientific American(十一)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Expectant moms can have very different ideas when it comes to where they plan to have their babies. Some women even choose to give birth in a warm tub of
Scientific American(二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Modern human babies are essentially learning machines. After birth, their brains grow in leaps and bounds, allowing infants to lay the groundwork for fut
Scientific American(十一)月