MadSci Network: Astronomy

Subject: Shuttle cloud that is present before liftoff?

Date: Sun Nov 7 19:47:04 1999
Posted by Bret Underwood
Grade level: undergrad School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Astronomy
ID: 942022024.As

I work at COSI in Columbus, and we have a computer that can run video 
real slow.  On this computer we have a clip of the space shuttle taking 
off.  Right before the space shuttle engines light up, a cloud rises from 
the launch pad.  I have heard two conflicting explanations: that the cloud 
is steam from water; or that the cloud is from liquid nitrogen.  Both had 
in common the idea that the cloud is the product of some coolant of some 
kind. What is it really?

Re: Shuttle cloud that is present before liftoff?

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