I've always suspected that anti-gravity would eventually be discovered thru work with magnetics. Especially since we already have limited anti-gravity now with mag-lev.
So, if you open a story in nextbigfuture.com, and then go to the left sidebar of topics, go down and open the topic on SPACE AND NANO-TECH. You will find some short but fascinating data out of the NIAC (NASA Institute for Advanced Concepts). Go down to "References for Space Related Predictions", then to "Current Work on Ion Engines", and you will find data on:
-- The NIAC study on collecting antimatter that is in the magnetic fields of planets. And the NIAC studies on efficient systems for using anti-matter for propulsion.
-- Also discussion on how sufficiently strong magnets would allow for a ground launched system that pushes against the magnetic field on Earth. Mainly by using room temperature superconductors.
-- Sailor B., they also mention your space elevators and tethers.
Recent discussions in the Science Fiction forum
AnnouncementRead fresh new science fiction stories - and help take them to the next level
|13||May 9, 2016|
AnnouncementImportant announcement from Amazon
|190||Jul 2, 2014|
AnnouncementNew Star Wars Release: The Jedi Path now available. Read the author's insider notes...
|31||Sep 3, 2015|
|Noticed a price drop on these books...||116||2 hours ago|
|lighthearted sci-fi without major character deaths or angst||69||23 hours ago|
|Generation Ships||26||2 days ago|
|How To Rule The Universe And Punish Evil PDF Article||0||3 days ago|
|How about LitRPG (MMO-based virtual reality books)?||185||5 days ago|
|It's April 2017. What sci-fi books are you reading?||8||7 days ago|
|Finding a lost story||0||7 days ago|
|If you like Alastair Reynolds, you'll like...||16||15 days ago|
|A possibly hopeless "Need help finding" request||10||21 days ago|