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BOB DOUGHTY: And Im Bob Doughty. Many boys and girls like science. Some of them go to the Internet to find answers to scientific questions. Today, we will tell about a few science websites for children. (MUSIC) FAITH LAPIDUS: Millions of children aro

发表于:2018-11-27 / 阅读(286) / 评论(0) 分类 2010年VOA慢速英语(十二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In America theres a feeling of Christmas. But thats not the only winter holiday going on. Jews are lighting Hanukkah candles, Muslims recently feasted

发表于:2018-12-02 / 阅读(70) / 评论(0) 分类 Scientific American(十二)月

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(72) / 评论(0) 分类 数学英语

LESSoN TEN TEXT A Scientific Attitudes Science had its beginning when man started asking questions about his environment. He wondered where the sun went at night and why the sky was blue. He questione

发表于:2018-12-15 / 阅读(35) / 评论(0) 分类 自考英语(一)78讲

Chinese President Xi Jinping has issued a new call for a greater focus on scientific innovation, saying it should be the driving force for China's development. Xi Jinping's comments have been made during a stop at the Chinese Academy of Sciences. He

发表于:2018-12-19 / 阅读(34) / 评论(0) 分类 世界各地新闻集锦

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(十)月
学英语单词
ammonium metavanadate
Archie equation
as per advice
bedipped
breastsummer
brief on
broadcast area
bromantic
buggers up
cercopithecus aethiopss
change-over channel steamer
chrome tanner
circuitboards
codfish cakes
corn row
corvus frugileguss
culler
CYN(cynarine)
cysticercus tubercle
den haags
dental pad
digital compact cassette tape
diphenyl diselenide
direct action avalanche
disattune
duplicate service
during the week
Early generator
family Parmeliaceae
fast traffic
Ficus swinhoei
Flinders Grp.
Forssman antibody
fuel-processing waste
haemanthus coccineuss
haemovore
hyporrhea
in collusion
inclined traverser
installation procedure
interconnect device arrange
jimbas
Korinthou, Isthmos
life of blast furnace
linear elastic fracture mechanic
logic computer
macrophiothrix propinqua
make the effort
mask microphone
meitan shale
mesothoriumII
microspectroscope
Monomanie
moving armature loudspeaker
new-blown
oberheide
on the beat
organized play
paper mould
pleasedly
proof of postage
protrusiveness
rabey
Ranunculus bulbosus
Rauwolfia Plum. ex L.
recessive allele
running start
Sabahan
sahar
saint-simon
sarlyk
Schmidt lens system
scrotie
seaparks
seating of the vessel head
shading adjustment
shear strain rate
short interspersed element
sideband suppression
sign transfer function
space impulse
spatial frequency
standards room
strain identification
stratified till
streaming tape drives
superlinearity
surface boundary layer
table of circular areas
tag propagation
thornproof tweed
tonify the blood
torsional vibration of shafting
trophy kid
understand about
uroptysis
visual sensor
winer
wyevale
xylaria feejeensis
yarrow
Yedogon