中导孔

WORDS AND THEIR STORIES - Chicken Feed / Peanuts By Jerilyn Watson Broadcast: Sunday, September 12, 2004 ((广播稿正在征集中 - 欢迎大家积极参与听写,将自己听到的内容写下来,然

发表于:2018-12-01 / 阅读(376) / 评论(0) 分类 WORDS AND THEIR STORIES

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(262) / 评论(0) 分类 访谈录2010

Four times a year, Ghez focuses the telescope on the stars of the very heart of our Milky Way. She is looking for the telltale high speeds that reveal the presence of a black hole. The center of the M

发表于:2018-12-07 / 阅读(373) / 评论(0) 分类 超大质量黑洞

In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou

发表于:2018-12-07 / 阅读(401) / 评论(0) 分类 超大质量黑洞

By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a galaxy nearby which is called NGC 1068, an active galaxy, w

发表于:2018-12-07 / 阅读(392) / 评论(0) 分类 超大质量黑洞

Heres what scientists think happened, oh, about a hundred million years ago. There was this three-star system. The three linked stars were strolling through the galaxy but got too close to the giant black hole at the center. The hole swallowed one of

发表于:2018-12-24 / 阅读(87) / 评论(0) 分类 Scientific American(七)月

The first step is to try to really understand the enemy. Poor little bee. So Jean, where is it on this bee that? Ok. I think if you looked even with a naked eye. Just to the side of the abdomen. Yes, oh, on the belly there. That grape red colored. Ok

发表于:2018-12-27 / 阅读(84) / 评论(0) 分类 探索与发现2013年

A hypervelocity star appears to be the remains of a three-star system, one star of which was digested by the Milky Way's black hole, with the other two being combined and hurled away. Heres what scientists think happened, oh, about a hundred million

发表于:2019-01-02 / 阅读(124) / 评论(0) 分类 60秒科学

Researchers: Many Black Holes in Center of Milky Way Galaxy Astronomers say the center of our galaxy has plenty of strange, super gravity objects. For years, scientists believed that circling the center of galaxies, including our own Milky Way galaxy

发表于:2019-01-03 / 阅读(87) / 评论(0) 分类 2018年VOA慢速英语(四)月

chicken out chicken feed 我们在[美国习惯用语]节目里谈到过好多好吃的东西,像牛肉、火鸡、鸭子等。今天我们来讲和[鸡]有关的习惯用语。近年来,美国人对

发表于:2019-01-06 / 阅读(154) / 评论(0) 分类 美国习惯用语

Feed the Soil, Feed the Crops If African farmers are going to feed the continent, they may first want to feed the soil. Studies show farmland is often depleted of vital nutrients. But researchers say a combination of organic farming methods may help.

发表于:2019-01-13 / 阅读(147) / 评论(0) 分类 VOA标准英语2012年(九月)

Each tag is whipping around the center of the galaxy, the particular, the most striking thing you will notice is the motion of SO2.So SO2 goes on an incredible roller-coaster ride. It comes whipping around and then back out. Something with tremendous

发表于:2019-01-22 / 阅读(88) / 评论(0) 分类 自然百科2011年

Galaxies could in a way, be much bigger than they currently are. Something is stopping them growing larger and that something is the black hole at the center. Now this is bizarre because the ration of the size of the black hole to the size of the gal

发表于:2019-01-23 / 阅读(107) / 评论(0) 分类 探索与发现2013年

If there's a black hole at the center of our galaxy, that's gonna force these objects that are really close to the black hole to move much faster than they would move if there were no black holes. So the first thing you wanted to see is there are ver

发表于:2019-01-23 / 阅读(75) / 评论(0) 分类 探索与发现2013年

音乐咖啡厅:Rihanna再度牵手Justin Timberlake(Hole In My Head) Artist:Rihanna Song:Hole In My Head [00:06.66]You got a hole in your head [00:09.79]You got a hole in your head girl [00:13.10]You got a hole in your head [00:16.19]You got a h

发表于:2019-02-08 / 阅读(191) / 评论(0) 分类 音乐咖啡厅

There was once a farmer who lived near a road. It was not a busy road, but from time to time, cars passed the farm. Near the farm gate, there was a large hole in the road. This hole was always full of water, and the drivers of the cars could not see

发表于:2019-02-08 / 阅读(134) / 评论(0) 分类 趣味英语

Down the Rabbit Hole Alice and her big sister were sitting on the grass. Her sister was reading a book, but Alice had nothing to read. She looked at her sister's book again. There were no pictures in it. What good is a book without pictures? She wond

发表于:2019-02-08 / 阅读(178) / 评论(0) 分类 趣味英语

Words and Their Stories: Chickenfeed 词汇典故:蝇头小利 I'm Susan Clark with WORDS AND THEIR STORIES, a program in Special English on the Voice of America. 这里是美国之音慢速英语词汇典故栏目,我是苏珊克拉克(Susan C

发表于:2019-02-08 / 阅读(151) / 评论(0) 分类 2012年VOA慢速英语(七)月

台湾籍旅美老师今天交给我们的句子是: A special region in the center of our brain acts as our master biological clock. Light sensitive cells in our retinas feed signals deep into that brain region, training neurons to sync up with Ea

发表于:2019-03-05 / 阅读(147) / 评论(0) 分类 留美老师带你每日说英文

Did you ever dream of digging a hole so deep it came out the other side of the earth? Let's play that game again, using a little physics. First we have to imagine that our tunnel is lined with super-heat-resistant material so we can pass through laye

发表于:2019-03-06 / 阅读(168) / 评论(0) 分类 英语时差8,16
学英语单词
a netizen
Abraham's willing
absolute thermal detector
affreights
after bulkhead
alpha scintillation probe
alphacetylmethadol
Amidonal
amino-group
aminocephalosporinic acid
ammino compound
amotio
an hourglass figure
apparent viscosity
barrel-vaulteds
branched root
BURSIDAE
butter of antimony
camphorweed
cash deposited for bond interest
central processor
chamfered teeth
chloragogen
Ck-MM
Cold Comfort Farm
Connons
Coquet I.
cosmic microwave background radiations
damp coefficient
deep trade-wind zone
direct search methods
disseminated superficial actinic porokeratosis
economic statistics
enforcement arrangement
Eubacterium lentum
feeding-stuffs
feel one's oats
flood the market with paper money
flow tracing
fourth cover
fruit plate
Galland
geok-tepe (g?kdepe)
Great Point
green veins
gripping apparatus
half roundtrip fare
have no part in
hepaticojejunostomy
hicksteads
high strength epoxy resin
homosexual person
hydrogen deficient fuel
imperfect neutrality
inspirs
judge's robe
Kamilukuak L.
Kholoud
kidney worm
kuttenbergite
Labiduridae
labyrinth flameproof joint
lamorisse
large block unit
light current engineering
Liksna
limulus lysate test
Ludolph
maharishi
mennesson
methyloxime
minor bridge
mountebank (w. europe)
movie posters
natural teeth
nephelium
oidiomycetes
onsure
open data
partitioning methods
plexus pelvinus
post-town
pussybreath
pyroclastic flow
rate of return on investment capital
relay stick
safe areas
saved up
signal clear aspect
slaptard
space station service module
sulfonitriding
super-sweet
this day last year
Tortkuduk
transfer operation
transfer transaction
triangulum australes
triplo-
ulcus exedens
viscidly
waterscaping