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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(102) / 评论(0) 分类 Scientific American(九)月

Antennae Key to Butterfly Navigation A study in the journal Science shows that monarch butterflies' sun-related directional sensing is governed by antennae, not the brain. Cynthia Graber reports Every year, millions of monarch butterflies fly thousan

发表于:2019-01-02 / 阅读(116) / 评论(0) 分类 60秒科学

Navigation, 3-D Printing in Sensing Technology Lead to New Apps LOS ANGELES 3-D printing, high-speed navigation and a magic mirror are some of the technologies that have come from new computer chips with advanced spatial sensing. Technology startups

发表于:2019-01-14 / 阅读(74) / 评论(0) 分类 VOA标准英语2015年(九月)

On June 6, China published the first batch of photos captured by Gaofen-1, China's first high-definition earth observation satellite. Those pictures will provide valuable information of natural condition and disaster prevention. Li Dong has the detai

发表于:2019-01-19 / 阅读(91) / 评论(0) 分类 世界各地新闻集锦

The most ambitious of these studies is the Stonehenge Hidden Landscapes Project, led by experts from Birmingham University And Ludwig Boltzmann Institute in Austria.-As people walk over the Stonehenge landscape, they are aware of Stonehenge. They may

发表于:2019-01-23 / 阅读(100) / 评论(0) 分类 探索与发现2015年

Leptin is a hormone made by fat cells that tells you when youre full. If you didnt have leptinand some people dontyoud eat too way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kids bo

发表于:2019-01-30 / 阅读(101) / 评论(0) 分类 60秒科学

plateau n. (上升后的)稳定水平(或时期、状态) plug n.塞子 pockmarked adj.有麻点的 polar adj.两极的 pole n.极 porous adj.多孔渗水的 portable adj.轻便的 pose v.形成

发表于:2019-02-06 / 阅读(114) / 评论(0) 分类 英文语法词汇

NE China to set up two drone bases for marine surveillance SHENYANG, Oct. 20 (Xinhua) -- Two drone bases will be established in northeast China's Liaoning Province for real time surveillance on coastal waters, local authorities said Saturday. One of

发表于:2019-02-08 / 阅读(103) / 评论(0) 分类 英语新闻

And the final thing is, again just to reiterate that there's this practical part, 最后,只是再一次重申,这个研究的实际应用方面, and so we've made these anti-quorum sensing molecules that are being developed as new kinds of the

发表于:2019-03-04 / 阅读(141) / 评论(0) 分类 TED演讲教育篇

Why this is interesting is because in the past decade we have found that this is not just some anomaly of this ridiculous, 这个发现之所以有趣,是因为在过去十年间,我们发现这种现象不只局限在这种古怪的、 glow-in-t

发表于:2019-03-04 / 阅读(158) / 评论(0) 分类 TED演讲教育篇

近日,我国首颗商用遥感卫星成功发射。这颗备受瞩目的星星都具备哪些功能?它的升空具有什么意义?在实现人们飞天梦的同时,它又能为我们的生活带来怎样的便利呢? 请看相关报道:

发表于:2019-03-11 / 阅读(147) / 评论(0) 分类 英文语法词汇
学英语单词
2-methylheptane
accept a line
agonic line of no declination
agroes
alkali bulb
ammoniabeam maser
amrs control center
angle of tooth point
aphylactic map projection
autoinsttuctional laboratory
battery-saving
benefit value
bent car
biuret paper
blood ghost
carbonated alkali
Changchengian Period
classified loan
common-law courts made law
credit division
cytopathogenic
death code
deveaux
domainal
emulsan
ergostane
esmolol
exciting cause
final acceptance trials
fuzzy column extension
gelid
general modular redundancy
ginger candy
grain drive
instantaneous data transfer rate
interrupting speed
Kim Son
Kingsgate
Kutta Joukowski condition
lag cross correlation
lamellarity
light radiation sensor
Louisa County
Maggiore, Mte.
magnetic induction component
magnetic ink printing
melvin ellis calvin
methasones
microprogrammed computer
mollisoil
Moskorzew
mounting clip
nasal gland
netstumbler
numerical codt
offset-bombing
on-rushing
original entry
over-lip
parental investment
photo journalist
picture signal monitor
planetule
plant concentration
playing speed
pluronic acid
pressure gauge with bakelite case
pugioniform
push straight on
rasbury
real-numbers
regio ethmoidea
rent-a-thug
reput
resonant-line circuit
run-off syrup
saddle deflecting yoke
sample weld
selection core
shared main storage multiprocessing
short salling
sourly
spatial gradient
sphaceloma rhois bitancourt et jenkins
splachnobryum luzonense
subterranean river
tahpooy
Texas Ranger
three phase three wire system
thrust my nose into
to-be-remembered
traffic injury
tube domain
underclerk
unstable wave
vaporability
vector volt amperes
vesicants
voice coil tuner
wave-free anchorage
weight bridge track
zakariya