| 查看: 501 | 回复: 4 | |||
[交流]
Everyday News-Place Your Bets on the Falling Satellite!
|
Sometime on Friday, a 6.5-ton satellite the length of a small bus will plunge back to Earth. Deployed from the space shuttle Discovery in September 1991 and decommissioned in December 2005, the Upper Atmosphere Research Satellite (artist's concept in image) measured chemical compounds found in the ozone layer, wind and temperature in the stratosphere, and energy streaming from the sun. According to NASA analyses, as many as 26 components weighing a total of 532 kilograms could survive reentry and strike Earth at scattered sites from 500 kilometers to nearly 1300 kilometers downrange of where the satellite first enters the atmosphere. Potential crash sites lie anywhere between 57° N (about the latitude of Sitka, Alaska, and Aberdeen, Scotland) and 57° S (a little more than 100 kilometers south of the southern tip of South America). Because Ireland lies beneath the flight path of the satellite, bookmakers there are getting in on the action: the most likely spot for the craft to crash is the Pacific Ocean, but odds are about 66-to-1 that any space debris lands on the Emerald Isle. If any pieces strike land, the most likely continents to be slammed are Africa (9-to-4 odds) and South America (11-to-4 odds), both of which lie fully within the danger zone. Because significant swaths of Asia and North America lie outside the danger zone, odds of debris landing there are lower, at 3-to-1. |
回复此楼» 猜你喜欢
302求调剂
已经有8人回复
-
深圳大学硕士招生（2026秋，传感器方向，仅录取第一志愿）
已经有9人回复
-
一志愿苏州大学材料工程（085601）专硕有科研经历三项国奖两个实用型专利一项省级立项
已经有7人回复
-
289求调剂
已经有6人回复
-
290求调剂
已经有11人回复
-
一志愿南京大学，080500材料科学与工程，调剂
已经有3人回复
-
285化工学硕求调剂（081700）
已经有9人回复
-
293求调剂
已经有5人回复
-
材料专硕274一志愿陕西师范大学求调剂
已经有5人回复
-
268求调剂
已经有7人回复
★
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
 |
2楼2011-09-23 22:21:07
★
小木虫(金币+0.2):抢了个小板凳，给个红包
小木虫(金币+0.2):抢了个小板凳，给个红包
 |
3楼2011-09-23 22:21:15
4楼2011-09-23 22:23:29
5楼2011-09-23 22:24:10
