Here is another installment in the “Who the heck is..” series.

Konstantin Tsiolkovsky (1857-1935)was the son of a Russian forester. A illness during his childhood left him deaf. Deafness led him to be self educated and he studied and focused on mathematics, physics, and astronomy. Later he became an educator.

He began to think about space travel and theorized on the following:

  • he calculated the speed and fuel it would take to escape the earth’s gravity
  • he said that the greatest exhaust velocities would be reached with liquid propellants
  • he proposed theories on multistaging
  • he theorized about space stations and interplanetray flight

“The Earth is the cradle of humanity, but one can not live in a cradle forever!” – Konstantin Tsiolkovsky
Here are a few links to learn more about this great rocket visionary:

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