Recent content by Questioner

A freefall rocket doesn't have to be cylindrical. In fact an approximate sphereoid woud have the most stable center of mass. Not sure how one designs the fuel tanks to keep that uniform distribution of mass as the fuel is consumed. It could be that some eccentricity of shape/mass is useful for...

I would think launching with the Moon overhead would save some rocket fuel.

Maybe it is the skyhook coasting/rolling in [possibly rocket asisted] at about geosynchronous speed & direction in a tangent of orbit where its cable tail kisses the planet's surface long enough for payload hook up and then the skyhook deadlifts everything into orbit. The skyhook is probably...

Maybe simpler, The skyhook orbits the moon in the same direction with the tail/cable out that leaves the skyhook behind unmoving in trailing virtual freefall where its planet kissing end picks up the payload and deadlifts it into orbit? Could that work? Could one have a skyhook orbit [really...

A Moon's moon & skyhooks (cont ) It could be the skyhook was in an opposite orbit of the moon's moon, Slowing the cable end relationship to the planet's surface near to zero.

A Moon's moon & skyhooks If one could put an object/moon in orbit around a planet then put an object in orbit around that moon in the same direction of a shared plane, then there would be time periods when the moon's moon traveled more slowly in relation to the planets surface. If a cable on...

I hope it doesn't amount to replacing the ancient low altitude Moon. Although I do know where there's an available body....

It might cause some geological stimulation as well. Initially it will create a gravity draw, whether that creates longer term geoactivity I don't know.

Initially one might let it rotate to find its gravitational 'sweet spot/position although that might be pre calculated. One doesn't want that puppy rotating on its own volalition.

It has to be enough mass to achieve geosynchronity at that elevation. I'm not sure how much that is, but it's a tremendous amount to sustain an orbit that low & slow. Built-in tidal lock that reinforces the current speed. A bit of a twin planetoid. I don't think it will change the day length...

If One Put a Massive Asteroid in Geosynchronous Orbit of Earth at 100 Miles of Altitude Would that Change the Day Length? It would certainly add a wobble to Earth's rotation. How much of a wobble would it cause?

Maybe we could speed up the Earth's rotation. If a day was 90 minutes we could geosynch with the space station. If a day was 20 minutes long maybe an orbiting skyhook could be geosynchronous? Not sure at what speed we will need seatbelts. "Who's driving this planet anyway?" "Look Ma, 67,000...

Mondays would be gone, but all the other work days would be longer. Maybe we should just haul the Moon back closer to put it back in geosynchronity. Details are fuzzy. Scary ideas. No magic aliens to repair any screw ups we make. "Save me Mr. Wizard, ........ from myself."

Feedtube Rockets If one had a stream of tubed hydrogen could one pull enough oxygen out of the low Earth atmosphere fast enough to create sufficient steady firing at least enough to lift a payload? An oxygen filter on the surface of the payload capsule? O2 weighs many times what H2 does. At...

Black hole spin could be coming from inside, the other side of the/a singularity. An absolute singularity might just dislodge from space-time altogether but in reality something could be very nearly a singularity.