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Armadillo Aerospace's quad rocket vehicle showing shock diamonds in the exhaust plume from its propulsion system
Armadillo Aerospace's quad rocket vehicle showing shock diamonds in the exhaust plume from its propulsion system
A turboprop-engined Tupolev Tu-95
A turboprop-engined Tupolev Tu-95
Wheels are commonly used in ground propulsion
Wheels are commonly used in ground propulsion
Transrapid 09 at the Emsland test facility in Germany
Transrapid 09 at the Emsland test facility in Germany
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A projectile being fired from an artillery piece
A projectile being fired from an artillery piece
Projectile and cartridge case for the huge World War II Schwerer Gustav artillery piece. Most projectile weapons use the compression or expansion of g
Projectile and cartridge case for the huge World War II Schwerer Gustav artillery piece. Most projectile weapons use the compression or expansion of gases as their motive force.
Ball speeds of 105 miles per hour (169 km/h) have been recorded in baseball.
Ball speeds of 105 miles per hour (169 km/h) have been recorded in baseball.
The Homing Overlay Experiment used a metal fan that was rolled up during launch and expanded during flight. The metal has five times as much destructi
The Homing Overlay Experiment used a metal fan that was rolled up during launch and expanded during flight. The metal has five times as much destructive power as an explosive warhead of the same weight.