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Old 17th April 2019, 08:09 AM   #11
bknight
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Join Date: Apr 2017
Location: Houston, Texas
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Originally Posted by JayUtah View Post
Why do you write the "NASA" rocket equation? You do realize that NASA didn't invent rocketry in a vacuum?
Lets see, maybe a Russian named Tsiolkovsky in 1903?

https://en.wikipedia.org/wiki/Tsiolk...ocket_equation
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