稳定磁场

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 Scientific American(八)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

Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen

发表于:2019-01-22 / 阅读(48) / 评论(0) 分类 自然百科2011年

As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag

发表于:2019-01-22 / 阅读(57) / 评论(0) 分类 自然百科2011年

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(51) / 评论(0) 分类 自然百科2011年

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(61) / 评论(0) 分类 英语新闻
学英语单词
a bur in the throat
acridnesses
adjudging
Ascaris visceralis et renalis
at one time or another
axle track
basic spraying width
bipolysaccharides
bufoniform
bursary
capellis
celerie
cheerio
cholesteryls
communicating branch with auriculotemporal nerve
communication building
connatest
contrast-detection
control rod snubbing impact
coolant temperature entering reactor vessel
Cremanthodium nervosum
cuckoo-hawk
denlinger
design limit
Dhī Bayn
ducs
dup loop
emvryulcus
engine-speed
error checking and error processing
erskin
executive review
expense of performance
extraocular muscles
extrinsic insoluble
fabric doubler
Figeac
fine line
forward stroke of the piston
freleng
gerege
glimpse of
grilled spring chicken
ground visibility
Hassel, Jeb.el
hereditary fructose intolerant hypoglycemia
hospital accounting
illegalise
incalculability
incommensurable numbers
investment strategy analysis
iopterous
kallidinl
letter-rate
liquid freon freezer
magneto sensitive element
main hollow spindle
mallotochromene
marine transport
meson theory
microarrays
Microhamartomas
musculus infracarinalis caudalis
nonequivalence operation
nonundoable
opisthorchiases
Parahalloysite
parmagianino
perfective
prace
promoting reagent
proptometry
rear lens cap
reed-sternberg(cell)
Responsa Prudentum
rim strip
roadless
self-contained machine
shellfishermen
shirt button
shunter's cabin at hump crest
spring tensioner
squares up to
stand the gaff
tamper with
tears down
terminal reheat system
That suit looks very good on you
thiohydroximates
thomas page
time-of
top part
trachelorrhaphy
tractor surge
transient of RLC circuit
trusseth
two of a kind
tyrannosaurine
uninuclear(uninucleate)
Weihai
wind-ball
zurs