Articles written by William Hamman

Mariner 4 was the first space probe to photograph Mars and profoundly affected how we viewed Mars as a result

Aug 12, 2007 - William Hamman

The Ideal Rocket Equation predicts rocket velocity on the basis of specific impulse and mass ratio and hints at deep truths in rocket engineering.

Aug 9, 2007 - William Hamman

Specific impulse is a measurement of the efficiency of a given set of rocket propellants that in turn strongly impacts overall rocket engine performance.

Jul 31, 2007 - William Hamman