Scientific American's Sixty

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. Want to feed a hungry world? According to David Gracer, add bugs to the menu. Gracer is, he says, a normal guy whos also an entomophagist, an advocate fo

发表于:2018-12-24 / 阅读(166) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We live in a nice neighborhood. Of the galaxy, that is. The sun is about halfway toward the outer edge of the Milky Way. But the sun may have migrated vast distances t

发表于:2018-12-24 / 阅读(183) / 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. Breaking a mirror means seven years bad luck. So does spilling salt or meeting a black cat. Weve all heard such silly-sounding superstitions. Of course w

发表于:2018-12-24 / 阅读(175) / 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. Conditions such as mad cow disease are caused by abnormally shaped proteins, called prions. Prions spread by causing other, normal proteins to misfold

发表于:2018-12-24 / 阅读(144) / 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. Weve all heard of the fight to combat malaria in mostly poor, tropical countries. But a whole host of other tropical diseases exist that leave their vi

发表于:2018-12-24 / 阅读(158) / 评论(0) 分类 未知分类

This is Scientific American 60-second Science. I am Steve Mirsky. Got a few minutes? Today we have a special edition featuring a brief interview with Scientific Americans Larry Greenemeier. So, Larry, whos..whos the fan of our video right now? Well a

发表于:2018-12-24 / 阅读(200) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science, I am Adam Hinterthuer. Got a minute? Laundry detergents and air fresheners have long promised to keep your house and clothes smelling sunshine fresh and rain shower clean. But what they haven't said is

发表于:2018-12-24 / 阅读(164) / 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. Some people never forget a face. Others never forget a flu. Even if they were infected more than 90 years ago. A team of American scientists studied 32 p

发表于:2018-12-24 / 阅读(199) / 评论(0) 分类 未知分类

For astronomers who study the large-scale structure of the universe, dwarf galaxies have proven quite vexing. Because the leading model of cosmology has been unable to account for their relative lack of substance. Now scientists writing in the journa

发表于:2018-12-24 / 阅读(178) / 评论(0) 分类 未知分类

Your feet may love running shoes. But what about the rest of your body? New research finds that running shoes actually increase the pressure on ankles, knees and hipsmore than high heels can during walking. Thats according to a study in the Journal o

发表于:2018-12-24 / 阅读(171) / 评论(0) 分类 未知分类

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(183) / 评论(0) 分类 未知分类

You can teach your dog to lie down. But you cant teach him to lie, or to know when youre lying. Because a new report shows that Spot cant spot deception. The studys in the journal Behavioural Processes. Weve all known pooches who run and hide when th

发表于:2018-12-24 / 阅读(217) / 评论(0) 分类 未知分类

Youve heard of waterboarding used as a means to get suspected terrorists to talk. Some people object to such methods on the grounds that they amount to torture. But in the journal Trends in Cognitive Sciences, psychologist Shane OMara of Trinity Coll

发表于:2018-12-24 / 阅读(191) / 评论(0) 分类 未知分类

Scary music plays a key role in ramping up the fear factor in movies. The soundtrack has such an effect that I put my hands over my ears during the most frightening moments. Now researchers at Tel Aviv University report that scary music is even scari

发表于:2018-12-24 / 阅读(193) / 评论(0) 分类 未知分类

We all know that drinking can cloud judgment. Thats why you should never e-mail an ex after youve had a few. But for teenagers, doing dumb things now because of alcohol may be just the start. Because research with animals suggests that drinking durin

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 未知分类

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 未知分类

Every year, millions of monarch butterflies fly thousands of miles to alight in one specific forest in Mexico. How do they know what direction to flutter? Scientists had thought that an insect GPS system in their brains steered them in the right dire

发表于:2018-12-24 / 阅读(193) / 评论(0) 分类 未知分类

Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu

发表于:2018-12-24 / 阅读(208) / 评论(0) 分类 未知分类

A quiet restaurant. Good wine. An animated conversation. Then, mid-sentence, you catch him steal a quick sideways downward glance at his BlackBerry. And the nickname CrackBerry comes to mind. You might think: for some, the Internet is an addiction. W

发表于:2018-12-24 / 阅读(262) / 评论(0) 分类 未知分类

Believe it or not, depression can be good for your health. Ok, not that kind of depression. An economic depression. According to work published in the Proceedings of the National Academy of Sciences, people actually got healthier during the Great Dep

发表于:2018-12-24 / 阅读(202) / 评论(0) 分类 未知分类
学英语单词
acheirous
acid potassium sulfate
active element group
air liquid
anti-abortion movement
arc torch
ardelio
Asian-African Conference
auto radar plot
Ballinalack
berth time
biotecture
bitter almond oil camphor
callable bond
cat shaft
caughter
chemical pruning
citrus grandis var. pinshanyu hort.
classless interdomain routing
coinin'
computer-aided design language
computer-aided piping design
counter mechanism cover
croupous membranes
demoting
dimissory
directioal louver ventilation system
doseberd
Douglas, Strait
dressing-gowns
dry decatizing
echinatin
electric flat carriage
elephantiasis crus
factor score
ferinest
fewtering
fine glass rod
first page indicator
Fluxum
forest succession
frame-type switchboard
full fluid film lubrication
Gideon lnternational
hackle guide
has no concern with
holiday
Homae-misaki
home-trade ship
Hornsömmern
I am sorry!
induced nuclear fission
ironomyiids
let the seller beware
Makarora R.
male pronucleus growth factor
mbda
melt-off rate
neurobehaviours
new orders
night clubs
nominal size of pipes
numerical factor
nutrocytopenina
obengs
ocimene
off-odor
orbit test satellite
palatine membranes
parallax factor
perinereis helleri
photographic roll film
Pithecellobium clypearia
Prominaleltes
prospective convention
radio protective substance
rape offence
rheumatism
right of ways
Romango
Santa Ana 2 (wind)
Sesostris III
shadebob
side intersection
sodium 4-amino-2-aurothiosalicylate
sophomore-level
SR (send-receive switch)
standby current
stomatic chamber
Streaming Server
stumpage value
Taxillus chinensis
tear one's hair
treenail wedge
typical structure
value of air-entry suction
vibratility
white finishing room
wikstroemia monnula hance
wire test
wiring plate