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(127) / 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(127) / 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(142) / 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(108) / 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(108) / 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

发表于:2019-01-08 / 阅读(138) / 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. 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(120) / 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(123) / 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(115) / 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(117) / 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(115) / 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(132) / 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(109) / 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(123) / 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

发表于:2019-01-08 / 阅读(115) / 评论(0) 分类 未知分类

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(127) / 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

发表于:2019-01-08 / 阅读(123) / 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. 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(119) / 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(123) / 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(104) / 评论(0) 分类 未知分类
学英语单词
acciona
Acrasida
active chart
ADR (analog-to-digital recorder)
Alpha-Mannosidase
atopical
audible call
autoinhibits
Awun, R.
before one could say knife
blew someone off
Blumau
bolbitis virens compacta
C-W
calcium carbonate culture-medium
California roll
carrot mobs
Cawdrey
chiastron
clotheses
coal pile trimmer
complex normal stochastic process
confusion noise
conjurings
cry cock
cryodesiccated
cursee
decahydroquinoline
dimapyrin
drum type brake
Ermington
experimental examination
fall to ruin
flat screen printing
food pyramids
forest insurance
gastric peristaltic wave
geoelectrical section
green silicon carbide
gunboy
harriettes
have your tubes tied
heat under reflux
home ground
infrared generator
input/output routine
interrecord structure
interwoven fibrous structure
intifadah
isoestragole
knight's
knowledge based expert system
Land race
LEF1
magnetic powder method
Mallia
memory scanning
microwave-pilot protection
minor role
myophragm
naevus corneum
non-communicative
observation time
odhani
open at
pe-conjugated
pecuniary interest
pell-mell structure
pistake
play (sb's) request
potassium methylate
preoral pit
print zone
pyd
quasi-colonial
rack toothing
re-marriage
reacting phase
rodacy
rutarin
semiconductor storage
Serratula tinctoria
signare
single drum dryer
sources of illumination
soy-protein
stalnaker
sulfa-drug(s)
Sumaco, Vol.
Swietenia mahagoni
Tayandu, Kepulauen
television receiving field intensity
terracing
transconfiguration
tubular hyposthenuria
two deck jumbo
Umar ibn al-Khattab
underappreciate
uxporite (yukoporite)
vari-coloured
with cap in hand
Zinnia acerosa