Aerospace. a design concept for spacecraft propulsion consisting of a very thin, very large sheet of highly polished material that would be driven by the pressure of sunlight.
[ 1955-60 ]
Aerospace. a design concept for spacecraft propulsion consisting of a very thin, very large sheet of highly polished material that would be driven by the pressure of sunlight.
[ 1955-60 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012