Archive for Fun

The Sky in Motion

By Su Zhengang ( January 7, 2009 at 11:09 am) · Filed under Fun, 天文

http://antwrp.gsfc.nasa.gov/apod/ap081231.html

Sun, moon and stars show up with their daily rise and set. The beauty of our celestial phenomena is increased by the accelerated time lapse technique showing the apparent motion of the sky due to earth’s rotation.

Music: túrána hott kurdís by hasta la otra méxico!
Time lapse video: The Sky in Motion by Till Credner, AlltheSky.com

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飘在空中

By Su Zhengang ( December 16, 2008 at 1:24 am) · Filed under Fun

(SF6).氟化硫气体，比空气重 5 倍，能够浮起铝箔船。人体吸入的话，声带振动的就比吸入空气来的慢，女声变男声。
氦气，比空气轻，就是男声变女声了。

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