New Space Settlement image

From: Tom Tucker (Olympia) [mailto:tntucker@...]

Soil is great for our feet, but how much atmosphere do you figure would be
needed for shielding?

Not sure of the exact answer to this question, but I know that when O'Neill
got to the Island 3 stage (with 4 miles of atmosphere overhead), we were to
a point where a separate radiation shield was no longer necessary. It's one
of the reasons why Island 3 wouldn't necessarily cost 1,000 times more to
build than an Island 1.

Regards,
Mike Combs

From:
Tom Tucker (Olympia) [mailto:tntucker@...]
Soil is great for our feet, but how much atmosphere do you figure would be
needed for shielding?

Not sure of the exact answer to this question, but I know that when O'Neill got to the Island 3 stage (with 4 miles of atmosphere overhead), we were to a point where a separate radiation shield was no longer necessary. It's one of the reasons why Island 3 wouldn't necessarily cost 1,000 times more to build than an Island 1.

Regards,
Mike Combs