Scientific American's Sixty

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

发表于:2019-01-08 / 阅读(236) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930

发表于:2019-01-08 / 阅读(241) / 评论(0) 分类 未知分类

Leptin is a hormone made by fat cells that tells you when you're full. If you didn't have leptin---and some people don't---youd eat way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kid

发表于:2019-01-08 / 阅读(255) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? On May 19th, President Obama announced a new federal gas mileage standard. He wants the country's entire car and light truck fleet to average 35.5 miles per gallon by 20

发表于:2019-01-08 / 阅读(225) / 评论(0) 分类 未知分类

This is Scientific Americans 60-second Science, Im Steve Mirsky, got a minute? Friends who had a swimming pool also had a little sign posted that said, We dont swim in your toilet. Please dont pee in our pool. Despite such widespread admonitions, 4/5

发表于:2019-01-08 / 阅读(207) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Cynthia Graber, this will just take a minute. Americans have gained a lot of weight in the past few decades. Is it our sedentary lifestyle? The increase in processed foods and sweeteners? Supersize

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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

发表于:2019-01-08 / 阅读(218) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Exercise is good for you. Antioxidants are good for you, but put them together, and its not as good as you think because a recent study shows that some v

发表于:2019-01-08 / 阅读(226) / 评论(0) 分类 未知分类

This is Scientific Americans 60-second Science. Im Karen Hopkin, this will just take a minute. For every action there is a reaction, and for many movements we make, there is an intention. We think about moving, and we move. Now a study published in t

发表于:2019-01-08 / 阅读(230) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Remember the heady days of 2007 before the large economy sized recession? Well, even back then medical problems contributed to over 62 percent of all ban

发表于:2019-01-08 / 阅读(216) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound

发表于:2019-01-08 / 阅读(256) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Cynthia Graber. This will just take a minute. Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quali

发表于:2019-01-08 / 阅读(237) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. For folks whove engaged in the strange ritual of speed dating, finding that special someone is like winning a romantic game of musical chairs. Now scient

发表于:2019-01-08 / 阅读(212) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds k

发表于:2019-01-08 / 阅读(235) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Adam Hinterthuer. Got a minute? When an Iraqi reporter threw his shoe at President Bush, University of Washington neurologists were delighted. But not because of politics. The fling was just real

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This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Could it be that our understanding of rain was all wet? A new study says that some drops of rain are falling faster than they should be. Which ultimately means that it m

发表于:2019-01-08 / 阅读(244) / 评论(0) 分类 未知分类

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

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This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. If you were a bird, how big could you be? Well, an ostrich can weigh 400 poundsbut it cant get off the ground. So what if you want to fly? University of

发表于:2019-01-08 / 阅读(232) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? During the last ice age our problem was too little carbon. Unlike today where too much carbon is causing global warming. Past glacial ages occurred partly because

发表于:2019-01-08 / 阅读(241) / 评论(0) 分类 未知分类

This is Scientific American's 60-second Science. I'm Christie Nicholson. Got a minute? We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka a

发表于:2019-01-08 / 阅读(202) / 评论(0) 分类 未知分类
学英语单词
a graveyard cough
afternoon nap
antidevolutionist
aperture function
arm-to-arm vaccination
avalanche photodiode(apd)
Awjilah
bastard sawing
bean pork
belfair
black women
boranes
box switch
brightness transfer characteristic
broad band decoupling
bulk products
carrier machine
catalytic metal
clamshell fixture
coating antigen
common person
computer administrative record
contusion of larynx
current off upset allowance
damping machine
deflection under rated load
degree of influence
dentins
despiting
diederich
distant month
electroslag smelting casting
epifriedelin
evening grosbeak
financial accounting identities
first-round financing
forced-ventilation
fortified feed
Fos
francois rude
free exercise
fruitshop
galliardism
gorams
groady
Guangxi talc
heptaparallelohedra
hippocalcin
inspires
iodometrictitration
Jordão, R.
ligs
Lun'okite
macing
manogenin
minesweeping weapon
nonpayers
pedal dynamo
phlegm-fire disturbing heart
physicotheological
planning board
plano-concave
preheader
preventive maintenance policy
printemp
proportional plus reset action
Prospect Pt.
re-entry observation
rubbing paste
San Marco, Basilica di
sarofim
schup
secure computer network
segmental die
self instructed carry
send sth in
simteks
social insurance agency
social statistics
solutionism
spherical colony
stereoconvergences
stony bottom
suspended-growth system
sympathic
Tensilest
Ticomium
tropical rainforest climate
tumor of Cowper's gland
Tysmenytsya
tytonid
union security
Uraria fujianensis
wind-polished stone
winecellars
word-association
yai
yangonas
Yass
you're welcome
yucking
zimzum