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1 vote
1 answer
70 views

What would the implications of a anti-gravity metal be? [closed]

I couldn't find a post on this, but I'm sure there's one like it somewhere. Basically, what if there was a material that "fell" up instead of down? Let's call it Newtonium, and let's also ...
Sunne In Splendor's user avatar
2 votes
2 answers
235 views

How fast would this gravity engine let planes fly?

My advanced civilization has finally managed to get gravitational engines to a smaller and more effective state. With this new technology, planes will now fly by 'falling' in the direction they are ...
Ceramicmrno0b's user avatar