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Flint, MI water supply tainted by chemicals

  • Offline MalabarJag
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#114
02-17-2016, 05:56 PM

Quote:Nothing you said contradicts my post. The fact Boeing and Lockheed Martin built the actual spacecraft doesn't change the fact that they wouldn't have done so if it weren't for a government agency paying them to do so. Neither company would have been involved in the space race if the government hadn't been involved.

 

As for the comparison of SpaceX and Blue Origin; they might differ from Saturn V and the Shuttle in some aspects but they are still built upon the knowledge of those projects. The basic design of a rocket engine hasn't changed since Robert Goddard launched the first one in 1926; it's still uses a liquid fuel mixed with an oxidizer and ignited in a combustion chamber thereby using Newton's third law of motion to create thrust. 
 

The Delta 4 and Atlas 5 were not developed using NASA designs, nor were they designed for use by NASA. There is a large market for non-government satellites in telecommunications. Interestingly enough, the Atlas 5 uses a Russian engine, so it's a stretch to give NASA any credit.


 

The Delta 4, which uses a US hydrogen-fueled engine could be called a successor to NASA technology. It has been discontinued because it is a distant 2nd to the Atlas 5 in both cost and success rate.


 

And if really want to say that modern rockets all use a liquid-fueled combustion chamber, then the rocket design credit goes back to Nazi Germany. Both Space X and Blue Origin are developing rockets that land vertically after use, something NASA has never done.


 

In any case my point was not that NASA has always been a failure. Competition with the Soviet Union made NASA very successful in it's early years. That competition ended by the mid-1980s, and NASA has done nothing noteworthy since the Shuttle in 1982, except for some scientific spacecraft that amount to less than 5% of the NASA budget and that benefit greatly from private sector advances in electronics.




                                                                          

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Flint, MI water supply tainted by chemicals - by MalabarJag - 02-17-2016, 05:56 PM



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