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KONSTANTIN TSIOLKOVSKY ALS, "K Tsiolkovsky", 6pp, April 28, 1927, 5 1/2"X9", nice scientific cont...

Currency:USD Category:Everything Else / Other Start Price:NA Estimated At:2,000.00 - 3,000.00 USD
KONSTANTIN TSIOLKOVSKY ALS,  K Tsiolkovsky , 6pp, April 28, 1927, 5 1/2 X9 , nice scientific cont...
KONSTANTIN TSIOLKOVSKY ALS, "K Tsiolkovsky", 6pp, April 28, 1927, 5 1/2"X9", nice scientific content re article he had written, comparing it to another article written 20 years earlier. In small part, "...About the increasing of iron strength at the liquid air temperature I said only what I had read...and would not insist that...it is true...In practice, the explosion tube...wouldn't have such a temperature...cools with liquid oxygen...why should we think about liquid air temperature for nozzle...In 1924 the work of 1903 was reprinted, but in this article another kind of tube was shown...we must not discuss gyroscopic features of my tube of 1914, because I have already refused a curved one. I return to straight construction...Liquid hydrogen I used as an example...no body would put a rudder behind the propeller...because it would weaken reactive device...Remember, that in...airplanes, the ruddders are behind the propeller...My formulas of oblong body resistance...are absolutely new...They are not suitable for the usual devices...Research shows that limit dependence between velocity (v) and oblong (k) or length to diameter ratio has an equation..." Some water staining, mostly at margin. Last page has some tears and one small hole. Average soiling and wear, overall VG. Boldly penned. $2,000-3,000