When did gunpowder-powered rockets first appear in medieval China?
Gunpowder-powered rockets evolved in medieval China under the Song dynasty by the 13th century. The Song navy used these weapons in a military exercise dated to 1245.
Questions about Rocket
Short answers, pulled from the story.
Who designed the V-2 rocket and when was it launched into space?
Wernher von Braun served as technical director for the V-2 rocket produced in Germany starting in 1943. The vertical launch of MW 18014 on the 20th of June 1944 became the first artificial object to travel into space by crossing the Kármán line.
What components make up a modern rocket engine structure?
Rockets consist of a propellant, a place to put propellant such as a propellant tank, and a nozzle. They may have one or more rocket engines, directional stabilization devices such as fins, vernier engines, or engine gimbals for thrust vectoring gyroscopes and a structure typically monocoque to hold components together.
How much delta-v is required to reach low Earth orbit from Earth surface?
The required delta-v to launch from Earth surface to low Earth orbit is about 9.7 km/s leaving vehicle with sideways speed around 7.8 km/s at altitude near 200 km. Practical delta-vs for single rockets carrying payloads can reach several km/s while some theoretical designs exceed 9 km/s.
When did Robert Goddard create the first modern liquid-fueled rocket?
Modern rockets originated in 1926 when Robert Goddard attached a supersonic de Laval nozzle to a high pressure combustion chamber. His use of liquid propellants instead of gunpowder greatly lowered weight and increased effectiveness.