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76. oldal
Here , we give details of a new French research rocket . OX & HID One of the interesting exhibits at the recent Salon International de l'Aéronautique in Paris was a high - altitude research rocket developed by the Laboratoire des ...
Here , we give details of a new French research rocket . OX & HID One of the interesting exhibits at the recent Salon International de l'Aéronautique in Paris was a high - altitude research rocket developed by the Laboratoire des ...
22. oldal
Dr. Sänger - Bredt discussed the thermodynamics of the atom rocket , in which atomic power provides heat for ... foresaw exhaust velocities of up to 30 km / sec . , or more than ten times those obtainable with present chemical rockets .
Dr. Sänger - Bredt discussed the thermodynamics of the atom rocket , in which atomic power provides heat for ... foresaw exhaust velocities of up to 30 km / sec . , or more than ten times those obtainable with present chemical rockets .
22. oldal
sec . , a three - step rocket would become practical for the Earth - orbit voyage , and a five - step for the orbit - Moon - orbit . But for the Mars expedition , even if the best present structural factor of 0.2 could be improved to ...
sec . , a three - step rocket would become practical for the Earth - orbit voyage , and a five - step for the orbit - Moon - orbit . But for the Mars expedition , even if the best present structural factor of 0.2 could be improved to ...
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