双曲奇点

If it points the camera forward, at first it sees only black. But as it moves toward the heart of the black hole, it encounters the most bizarre place in the universe. A black hole in massive gravity holds everything down to an unimaginably small poi

发表于:2018-12-07 / 阅读(316) / 评论(0) 分类 访谈录2010

A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Nothing can escape it, not even light itself. Anything that gets

发表于:2018-12-07 / 阅读(459) / 评论(0) 分类 超大质量黑洞

In either case, get ready for a really big bang. 无论哪种情况,准备好来一次真正的大爆炸。 Naturally, you will wish to retire to a safe place to observe the spectacle. 很自然,你希望退避到一个安全的地方来观察这个

发表于:2019-01-01 / 阅读(153) / 评论(0) 分类 万物简史

分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(478) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

JEFFREY BROWN: Now, mining technology to solve the world's problems. NewsHour economics correspondent Paul Solman recently traveled to California and filed this report on someinnovative thinkers. It's part of his ongoing reporting Making Sense of fin

发表于:2019-01-27 / 阅读(173) / 评论(0) 分类 PBS访谈商业系列

Voice 1 Welcome to Spotlight. Im Christy VanArragon. Voice 2 And Im Joshua Leo. Spotlight uses a special method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Every day, Ray Kurzweil swallows

发表于:2019-02-21 / 阅读(148) / 评论(0) 分类 环球英语 Spotlight
学英语单词
abutment screw
account form balance sheet
acoustical strain gage
active incontinence
adils
angel of the schools
as warm as toast
baby-walkers
background calibration
Bagnoli del Trigno
be what may
begin the dance
birl the bawbee
bittersmiths
blue shark
canal ear
car-body vans
carbonyl haemoglobin
cat and dog production
ceremoniality
Changing the Guard
chappa
Chippawa
claimable assets
Cleistanthus sumatranus
collision injury eyeball
corner halving
cultural factor
desktop-computer
determinate fatigue analysis
encryption protocol
expert vision system
extre uterine gestation
family Podargidae
filtratometer
floor-controlled monorail system
fore and aft sail
full duration
galactosylated
Gregg Shorthand
high-current microtron
highoctane
hjelms
homestyles
implosion
inlumined
it is a fact
kemajl
kenyentulus ciliciocalyci
lamanna
lighter
magnesium front
magon
manganese (ortho)silicate
massus
McCartney
milk crate
minerogentic province
Miseryfjellet
multiact
musculus sphincter ani internus
Myemulchung
narrates
nonprint media
Olesnica
once per revolution vibration
oppressure
optimum merging pattern
ordinary photography
paradisean
pendulum multiplier
pergraphical
physical impossibility
pin upon
po shan lu
polygonaceous
pump jockey
quadratic strain
Radstädter Tauern
railroad policy
ram tensioner
rauvonine
reducibility of characteristic form
self-actuated control
Siberian marmot
skeletal dysplasia
stood for
straight tenon
strain field
Strip-seeding
sulfapyridines
tandem wing
thermorefractometry
thyro-hyoid joints
to invent
ultrahigh dynamic strainometer
under-determined
unserambler
vehicle operation intensity
vitamine A deficiency
watertight doors
WinDirStat