oldfart
Member
This is best explained by Scott Manley.
https://www.youtube.com/watch?v=ma_175NNfZs
https://www.nasa.gov/directorates/spacetech/niac/NIAC_funded_studies.html
https://www.youtube.com/watch?v=ma_175NNfZs
https://www.nasa.gov/directorates/spacetech/niac/NIAC_funded_studies.html