David
  • Member for 3 years, 7 months
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Designing "age of sail" ships that require no wind
1 votes

It is a misconception that a sailboat requires moving air to sail. All sailboats derive their energy from the difference in speed between the Air and the Water, so if both Water and Air move at the ...

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A system for transporting people from a spinning ring up a conduit to a spaceship
0 votes

There appear to be two parts to your question: How to transport someone from the ring to the hub How to cancel their momentum. The pylons will need to be fixed at one end (either the ring or the hub)...

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How to get into space from northern latitudes?
0 votes

Just to add to kingledion's answer. Its useful to launch from a location close to the equator if you want an equatorial or geo-stationary orbit, since you don't have to waste delta-v changing the ...

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