时间:2018-12-28 作者:英语课 分类:初学者听力文摘精选


英语课

Did Ben Franklin really discover electricity with a kite?

本.富兰克林真的靠一只风筝发现了电吗?



Everybody has heard the famous story of how pioneering experimenter–and part-time founding father–Ben Franklin tied a key to a kite string and flew the kite in a thunderstorm.

大家都听过这个有名的故事:本.富兰克林这位开创性的实验者兼开国之父如将一把钥匙系到风筝线上,并在电闪雷鸣的恶劣天气下放风筝。



The kite was hit by lightning, and zap! Franklin had discovered electricity.

风筝被闪电击中烧毁了,于是富兰克林发现了电。



Fried Franklin

烧焦的富兰克林



Well, it makes a better story than it does an experiment. The danger is that lightning is not something you want to play with, and you certainly don’t want to attract it to

我们最好把它当成一个故事而非实验。这个实验的危险之处在于:闪电不是你能玩耍的东西,当然你也不想引“电”上身。如果这个故事是真的,恐怕富兰克林早已被烧焦了。



yourself! Were this story to be true, I’m afraid, the result would have been fried Franklin. What Ben actually did in his famous 1752 experiment was to cause some excess electrical charge near a storm cloud to ground out through his kite string–still an impressive demonstration 1, but a much less powerful prospect 2 than an actual lightning strike.

在1752年这次著名的实验中,本所做的就是将暴风云附近的过量电荷通过风筝线引到地面上来,虽然相比实际雷击威力要小很多,但它仍是一个令人印象深刻的证明。



Myths

神话



Nor is it true that Franklin discovered electricity, as people tend to say. What he was trying to do was to demonstrate that lightning itself is simply a powerful electric discharge between the clouds and the earth. In this he was entirely 3 correct.

事实上,富兰克林也没有像人们所说的那样发现了电。他所努力做的一切就是要证明:闪电本身只是云和地球之间的一种威力巨大的放电现象,在这一点上,他是完全正确的。



Now, did you know that two of the basic terms we use even today to describe electric charge were coined by Franklin? Next time.

时至今日我们仍用以描述电荷的两个基本术语是富兰克林创造的,你知道吗?这个问题我们下次详述。



1 demonstration
n.表明,示范,论证,示威
  • His new book is a demonstration of his patriotism.他写的新书是他的爱国精神的证明。
  • He gave a demonstration of the new technique then and there.他当场表演了这种新的操作方法。
2 prospect
n.前景,前途;景色,视野
  • This state of things holds out a cheerful prospect.事态呈现出可喜的前景。
  • The prospect became more evident.前景变得更加明朗了。
3 entirely
ad.全部地,完整地;完全地,彻底地
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
学英语单词
accepted theory
accretionary lava balls
algorithm convergence
at one with the world
battery anti-aircraft battery
Betula nigra
binga
brazing flux
cardiac myxoma
charm sb into doing sth
chew up the scenery
cladding diameter tolerance
clip control
code sheet
colo(u)ring power
combined compressed air and hydraulic brake
compensating reactance
cornified layer
corrosion-resistant bearing
court of session
crack us
cuprous telluride
data proliferation
DCYD
Desmedipham
disposal of uncollected goods
double type wedge
en block cylinder
erlene
erradicate
Erraid
expressos
farmers' purchasing and marketing cooperative
flux concentrating ratio
frana
gateways
gift book
gigantolithic
GME-NAC
greenson
gymnorhinal
hamburger icons
head bandaging
intellectual power
Isodin
Jari, R.
keep something for a rainy day
kilo-grays
konditorei
lookout
luck through
Mabula
magnetic tapes
MIPR
mole fraction
net realizable value
noncoherent radar
offiss
ogee gable
omwf
on the stretch
ostracization
otoantritis
output of heat
overtrumping
paraphyte
partly convertible account
pharping
physiological biomass
polysialyltransferase
potassium tetraiodoaurate (III)
preconcerts
quasar
race memory
recruitment advertisement
renal epithelioma
reoccured
round-the-corner auger
salvadoris
scrotal septum
searchlight-type sonar
self modulation
self sucking pump
simple-bending
solid state magnetic module
songsheet
space density tapered array antenna
space research
squalidness
standard visual diffuse density
subceiling
superfixed
Talbot band
thanatophoric dysplasia
toll transmission selector
TOS us
transcarbonylation
tree node
unadaptabilities
vena sternocleidomastoideas
warmweather
wilkume