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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(46) / 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
3-beta-galactosyltransferase
abbreviated call letters
administrator of the estate
applejack
arneson
Bacterium linens
bellyacher
bottle-tree
Buckner,Simon Bolivar Jr.
calculating card
campanulata
casterbridge
chactomium globosum
Ciepielow
clerklike
common gum cistus
cospas-sarsat message
countingcup
debellator
Drachkava
eckfords
embroil
faikes
food reflex
formatted mass storage
forswarted
four-strands
free setting hydraulic classifier
fuel decel valve
fuel handling purge system exhaust filter
fulvic
fundamental-vibration
Ginkgo
goureux
granular layer
great grandchild
Greek number
guide vane force character
gynosaponin
halcyonid
harpertrophy
high silicon cast iron
Hunter's glossitis syndrome
husmann
hypertrophy of ligamentum flavum
impulse regenerator
intraperitoneal hernia
Inza
ion exchange membrane fuel cell
krw
lohmillers
look blank
low-melting metal ingredient
malilla
MC'd
Michigan bankroll
non-automatic system
oblique name
obninsk
ona
ordered probability model
oxyquinolinic acid
oxytocias
P-E ratio
patten-maker
perisplancchnitis
photoelectron microscopy
pittsburg
polyglottic, polyglottous
port of route
potterers
pressor beams
Puccinellia tenuiflora
quintefoil
regyll
ript
rissaldars
scotfree
self-balancing strain gage
Sindae-ri
skittle pot
somatopathy
somnological
starch reduced bread
starstudded
stratiform clouds
stress-assisted martensite
thermal processes
tidal bulge
torsional amplitude
triphibian
ueberroth
unappalling
visible import
wave of the future
waveoff
weathermost
wild yellow lilies
william jennings bryans
written notification
xds
zanharina