What caused scientists such as robert goddard, konstantin tsiolkovsky, and hermann oberth to experiment with twentieth century? h rocket technology in the earty

Answer

The Rocket Technology

Explanation

Konstantin Tsiolkovsky was the Father of Modern Astronautics who in 1898 first proposed the idea of space exploration by rocket. In his first report he suggested the use of liquid propellants for rockets in order to attain a higher range. Early in the 20th century, Robert H. Goddard an American published a pamphlet attaining higher altitudes in rockets with a mathematical model called the meteorological sounding rocket.

it increase by 12% a year from 1812-1820