Re: World building: implications of counter gravity

My first thought was to go in a different direction - Space Elevator.

https://www.extremetech.com/extreme/176625-60000-miles-up-geostationary-
space-elevator-could-be-built-by-2035-says-new-study

The Space Elevator would be able to get people, supplies, etc into orbit

with a lot less effort than disposable rockets, don't need as much magic

handwavum to work, and allow you to keep rocket engines less powerful so

they can't zip all over the solar system.

Dean

On 11/8/2017 2:54 AM, Hugh Fisher wrote:
>
> I am doing some world building for a space game setting, and want to 
> run an idea past people.
>
> My setting is not too distant future. I want easy surface to orbit 
> launch to explain why people are in space, which means using up a lot 
> of energy on each launch.
>
> BUT once in space I want engines to be rather limited, so it isn't 
> easy to, say, divert asteroids into planets.
>
> My idea is counter gravity, an updated version of HG Wells Cavorite, 
> or the liftwood in Space 1889. Not artificial gravity, but some kind 
> of field that INSERT HANDWAVING HERE creates an equal and opposite 
> thrust reaction. So within the gravity of a planet you get lots of 
> thrust, near an asteroid very little, and from a spaceship hull 
> something only measurable in nanometres per hour.
>
> What am I missing? Would this make space travel economical? What else 
> would it be good for?
>

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