@CharlesMullins2 Neil Gehrels? Got his own telescope, eh? I worked with him on Gamma Ray Telescope. Great guy, liked him a lot. I was just an engineer, I had questions. He was patient and illustrative. Cool dude.
HST required 4 reaction wheels mounted on a 4-sided pyramid configuration. Each wheel then had a projection into vehicle axes. Even CMGs (control-moment gyros) use torquer bars to de-saturate the wheels. CMGs spin at 6000 rpm always, actuator pistons torque their spin axis around to change vehicle attitude. Their saturation point occurs when the actuator pistons reach their limit. Desaturation means pushing against an external force like the mag field without perturbing vehicle attitude.
@canalCCore2 HST didn’t use thrusters. The worry was polluting the primary mirror. We used electromagnetic torquer bars to dump accumulated wheel momentum into Earth’s magnetic field. Many vehicles use this method as it requires only electric power, not expendable rocket fuel.
Mamdani’s “free” grocery stores either reveals him to be a counter-agent to reveal the sheer idiocy of Marxist thought, or far more likely, a spoiled rich-kid true-believer that’ll ride New York down like Slim Pickens in Dr Strangelove. And they actually VOTED for this!
@space_stations Chesley Bonestell the artist that illustrated the most amazing space art. My old Time-Life books as a kid may have had your example, not sure.
I think Marco Rubio has really found his groove. He is brilliant, clear, and concise. It’s been said that some men are born to greatness, others are thrust into it.
Low IQ people never seem to transition to adulthood. Always the limbic response to stimulation, chimpanzee-like. Children in mature bodies. Hence the popular saying “to chimp-out”.
The NASA Artemis program follows the Werner Von Braun method of throwing away expensive hardware to get a relatively small mass to the Moon. SpaceX rejects this, preferring to save/recycle proven hardware. I daresay this is the way to go for the future.