Just for fun~

這篇是回憶錄~ 這篇文章真是太難寫啦 >_<"
因為當時看到有save下來, 但是因為過了許久, 根本不知道這個google icon裡的 Sputnik是什麼東西啦! 還好~ google 是大家的好朋友哇!!
Google 了一下發現了....

Milestone:
First Artificial Satellite
Date of Milestone:
October 4, 1957
Spacecraft:
Sputnik 1
Mission Operated by:
USSR
Spacecraft Location:
Smithsonian Institution, National Air and Space Museum, Milestones of Flight Gallery

On October 4, 1957, the Soviet Union sent into orbit Sputnik 1, the first artificial satellite in history. Then a month later, an even larger and heavier satellite, Sputnik 2, carried the dog Laika into orbit.

Sputnik’s launch came as an unnerving surprise to the United States. The space age had dawned and America’s Cold War rival suddenly appeared technologically superior.

The first U.S. effort to launch a satellite failed when its Vanguard rocket exploded during lift-off. Finally on January 31, 1958, a Jupiter-C rocket sent Explorer 1 into orbit. The space race was underway.

Design Features (in comparison to Explorer 1):
Sputnik 1 Explorer 1
Sputnik 1

Explorer 1

* More than twice the size of a basketball, Sputnik was larger and heavier than Explorer. Only the striped section of Explorer contained the payload; the rear half was a solid-fuel rocket motor.
* Sputnik’s sphere was polished to a high sheen to aid in tracking by telescope. Explorer’s light and dark stripes helped control its temperature.
* Despite Sputnik’s streamlined appearance, it tumbled while in orbit. Explorer spun about its long axis, which extended its four flexible antennas.
* Sputnik contained two radio transmitters, which sent back the “beep-beep-beep” heard round the world. Explorer contained a cosmic ray detector, radio transmitter, and temperature and micrometeoroid sensors.

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以上這麼長一大段, 所要表示的就是~
Sputnik是第一顆成功發射的人造衛星!!

PS.參考資料: http://www.nasm.si.edu/exhibitions/GAL100/sputnik.html
http://blog.linux.org.tw/~jserv/archives/001771.html