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Hoverboards Ignore Gravity Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part

发表于:2018-12-16 / 阅读(51) / 评论(0) 分类 2014年VOA慢速英语(十二)月

SCIENCE IN THE NEWS - Mars Once Had Moving Plates Like Earth Has Now By Katherine Gypson, Cynthia Kirk and Karen Leggett Broadcast: Tuesday, November 08, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE

发表于:2019-01-02 / 阅读(42) / 评论(0) 分类 科技之光

New Skateboard Defies Gravity WASHINGTON A futuristic dream only a couple of decades ago, the hoverboard a skateboard that floats above the ground - has finally been made possible. While still not ready for mass production, it promises to become a co

发表于:2019-01-14 / 阅读(37) / 评论(0) 分类 VOA标准英语2014年(十一月)

If we could flip a switch and just turn off the Earth's magnetic field, it will take about 15,000 years to disappear, based on the rate of decay of the field that we've seen over the last 150 years. It's currently decaying at a rate that would see an

发表于:2019-01-22 / 阅读(46) / 评论(0) 分类 自然百科2011年

Gas escaping into space from the plumes is energized by Jupiters magnetosphere, creating an intense band of ionizing radiation that bombards a surface already soaked in emissions. If you went out relatively unprotected with, like a normal spacesuit f

发表于:2019-01-22 / 阅读(41) / 评论(0) 分类 自然百科2012年

听力文本 Recording 30 录音30 1. We've recently been doing some research involving mice. We were trying to find out what causes the cells in our body to age. 1、我们最近在做一些和老鼠有关的研究。我们尝试找出我们体内的细

发表于:2019-03-15 / 阅读(131) / 评论(0) 分类 剑桥雅思报考指南
学英语单词
acetoxymethylbenzylpenicillinate
air bill
autotrophic metabolism
battle dress
Bemberg's stretch spinning apparatus
bentonites
blepharophlegmasia
boiler controls
bonded cargo
bony exostosis
booking-note
brachiotomy
British antilewisite(BAL)
bushpeople
by gummy
by the end of the week
car charger
caractere de danse
Christadelphian
chromous carbonate
Cochin(Chinese)
communication-stage model
compound fixed bridge
cutaneous fertilization
disdeified
disturbed magnetic field
ecumenacy
electroh(a)emostasis
envelopping layer
exquisiteness
extreme points
flare stars
fluorescence microscopes
football fan
fugitive constituent
grammaticize
green-eyed monster
haemocytometers
Haengyong
Helsingin Sanomat
hold something in derision
income replacement programs
Indian Plate
inkjet printers
interlocking (mather 1932)
intermediate credit
isoamyl thiocyanate
Kirter
korinthoss
luangwa
lumbar curvature
Melinis
myelocytes
non-renewals
nowmost
oenanthe pleschanka
Office Francais de Recherche Sous-Marine
owyang
oxidizing layer
parallel image correlation
pellice
periscope television
photorespiring
protocrystalline silicon
Pulaubatu
purifier bowl
random rehash technique
recaptive
resorption tubercles
rhesus positive
Rhodymenia
Rhyniophyta
roquefort cheese
sap-
scotch tweeds
screen holder
setfast (in horse)
sfsisfstsys-s
shock-wave-pumped laser
silica core rod
single tandem articulated gearing
single-station forecast
smailed
small screw torch
sputtering etching
status post
surface electric double layer
sweepstakes route
Sylvester process
talk sailor
text name
tubular retort furnace
unavoidable agreement
uncumbered
vacuum oxygen refining
vulcanized paper
well-formednesses
wet cold pack
what-the-hell
Zanesville
zincilate
zone time system