gases

519 · 2 · 259.5


+ 269 Alternate currents, especially of high frequencies, pass with astonishing freedom through even slightly rarefied gases. The upper strata of the air are rarefied. To reach a number of miles out into space requires the overcoming of difficulties of a merely mechanical nature. Nikola Tesla


+ 250 Alternate currents, especially of high frequencies, pass with astonishing freedom through even slightly rarefied gases... Nikola Tesla