Thursday, July 5, 2018


We just learned about GNC - Guidance Navigation and Control.

One type of tool used to help navigation is an Altimeter.

This measures the pressure in the air to figure out how high up off the ground a rocket is.
When a rocket is close to the ground it has higher air pressure, and when it goes further up off the ground, the air pressure gets less and less.

With an altimeter inside the rocket's controls, the rocket can tell how high up in the sky it is.

(from: wikipedia - altimeter)

Kid Facts - Blast from the past: Water Jet Cutting