NASA's space shuttles are amazing flying machines. They launch like rocket, land like airplanes and then hit the hangar for a pit stop before turning around and doing it again. Now, nearly 30 years after the first space shuttle - Columbia - bla
Rocket Engine Classification: The last number after the dash is the DELAY TIME It is measured in “seconds." The delay composition burns slowly, making lots of smoke. the selection of an incorrect delay time for the flight affects how high the rocket may travel and when during the flight the parachute is deployed.
Mysterieuze radioflitsen: we weten in ieder geval waar ze vandaan komen | NOS