Re:US urged to reveal UFO evidence after claim that it has i...
by dTal on Thursday June 08, 2023 @02:56PM
(#36246836)
>I'm sure that a century ago, space was just something we would never reach.
Far from it! From the Earth to the Moon by Jules Verne was written in 1865, and was a reasonable attempt at hard sci-fi. More scientifically, Konstantin Tsiolkovsky published "Exploration of Cosmic Space by Means of Reaction Devices" in 1903, some 6 years after deriving his famous rocket equation; it advanced the basic concept of the space rocket, that we all take for granted today. In 1923, exactly a century ago, Hermann Julius Oberth published his book "The Rocket in Interplanetary Space", a thoroughly practical treatment in which he argues that human-rated rocket-powered space flight was not just theoretically possible but feasible and maybe even profitable.[0]
So century ago, not only was space firmly established as a place we could go, but also enough groundwork had been done that it was known how we would get there.
Far from it! From the Earth to the Moon by Jules Verne was written in 1865, and was a reasonable attempt at hard sci-fi. More scientifically, Konstantin Tsiolkovsky published "Exploration of Cosmic Space by Means of Reaction Devices" in 1903, some 6 years after deriving his famous rocket equation; it advanced the basic concept of the space rocket, that we all take for granted today. In 1923, exactly a century ago, Hermann Julius Oberth published his book "The Rocket in Interplanetary Space", a thoroughly practical treatment in which he argues that human-rated rocket-powered space flight was not just theoretically possible but feasible and maybe even profitable.[0]
So century ago, not only was space firmly established as a place we could go, but also enough groundwork had been done that it was known how we would get there.
[0] https://ia800304.us.archive.org/24/items/nasa_techdoc_197200...