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Note: I decided to repost this since Freeman Dyson didn't postulate a
hollow shell, but a massive swarm of objects.
The short version: this book was a disappointment.
About 2 decades ago, Stirling wrote 2 books that modernized the mid 20th century Planetary Romance genre (_The Sky People_ and _In the Courts of
the Crimson Kings_). Both Venus and Mars had been terraformed during the Mesozoic by a highly advanced interstellar civilization and had been
seeded by life from Earth (with periodic inserts of more species,
including humans, up to about 5 thousand years ago for Venus and perhaps
200 hundred thousand years ago for Mars). The most advanced cultures on Venus were Bronze age, but Mars had a uniform civilization with
extremely advanced bio-tech on a dying planet. In the epilog of _In the Courts of the Crimson Kings_ some gates were opened that connected Venus
and Mars to other worlds, and Earth to a hollow sphere, 2 Astronomic
units in diameter.
These two books have recently been reprinted by a new publisher and
Stirling wrote a 3rd title, _Lords of Creation_ to go with them. People
are exploring that sphere, but NONE of them appear to be aware
that a hollow sphere has no internal gravity force. They are all walking around in a 1 g field.
In article <robertaw-0A4722.23132121082025@news.individual.net>,
Robert Woodward <robertaw@drizzle.com> wrote:
Note: I decided to repost this since Freeman Dyson didn't postulate a
hollow shell, but a massive swarm of objects.
The short version: this book was a disappointment.
About 2 decades ago, Stirling wrote 2 books that modernized the mid 20th
century Planetary Romance genre (_The Sky People_ and _In the Courts of
the Crimson Kings_). Both Venus and Mars had been terraformed during the
Mesozoic by a highly advanced interstellar civilization and had been
seeded by life from Earth (with periodic inserts of more species,
including humans, up to about 5 thousand years ago for Venus and perhaps
200 hundred thousand years ago for Mars). The most advanced cultures on
Venus were Bronze age, but Mars had a uniform civilization with
extremely advanced bio-tech on a dying planet. In the epilog of _In the
Courts of the Crimson Kings_ some gates were opened that connected Venus
and Mars to other worlds, and Earth to a hollow sphere, 2 Astronomic
units in diameter.
These two books have recently been reprinted by a new publisher and
Stirling wrote a 3rd title, _Lords of Creation_ to go with them. People
are exploring that sphere, but NONE of them appear to be aware
that a hollow sphere has no internal gravity force. They are all walking
around in a 1 g field.
Oops, I made a mistake above. I was looking for something else in this
title and noticed Stirling's handwave (which I had somehow missed when I >read the book). The people are unconcerned because they know what they
are walking in (at least they have a photo from a big telescope of an
object of the right size whose interior would have the apparent 1 g
field they are experiencing). What Stirling has is a big hollow sphere
that is rotating and has large protrusions at the poles (large enough to
be seen in the picture). Result, 1 g everywhere on the interior surface.
In article <robertaw-4DB75F.22113704102025@news.individual.net>,
Robert Woodward <robertaw@drizzle.com> wrote:
In article <robertaw-0A4722.23132121082025@news.individual.net>,
Robert Woodward <robertaw@drizzle.com> wrote:
Note: I decided to repost this since Freeman Dyson didn't postulate a
hollow shell, but a massive swarm of objects.
The short version: this book was a disappointment.
About 2 decades ago, Stirling wrote 2 books that modernized the mid 20th >>> century Planetary Romance genre (_The Sky People_ and _In the Courts of
the Crimson Kings_). Both Venus and Mars had been terraformed during the >>> Mesozoic by a highly advanced interstellar civilization and had been
seeded by life from Earth (with periodic inserts of more species,
including humans, up to about 5 thousand years ago for Venus and perhaps >>> 200 hundred thousand years ago for Mars). The most advanced cultures on
Venus were Bronze age, but Mars had a uniform civilization with
extremely advanced bio-tech on a dying planet. In the epilog of _In the
Courts of the Crimson Kings_ some gates were opened that connected Venus >>> and Mars to other worlds, and Earth to a hollow sphere, 2 Astronomic
units in diameter.
These two books have recently been reprinted by a new publisher and
Stirling wrote a 3rd title, _Lords of Creation_ to go with them. People
are exploring that sphere, but NONE of them appear to be aware
that a hollow sphere has no internal gravity force. They are all walking >>> around in a 1 g field.
Oops, I made a mistake above. I was looking for something else in this
title and noticed Stirling's handwave (which I had somehow missed when I
read the book). The people are unconcerned because they know what they
are walking in (at least they have a photo from a big telescope of an
object of the right size whose interior would have the apparent 1 g
field they are experiencing). What Stirling has is a big hollow sphere
that is rotating and has large protrusions at the poles (large enough to
be seen in the picture). Result, 1 g everywhere on the interior surface.
That will only produce one gee for regions at a specific radius to
the axis of rotation. Regions closer will have less and regions
farther will have more.
In article <robertaw-4DB75F.22113704102025@news.individual.net>,
Robert Woodward <robertaw@drizzle.com> wrote:
In article <robertaw-0A4722.23132121082025@news.individual.net>,
Robert Woodward <robertaw@drizzle.com> wrote:
Note: I decided to repost this since Freeman Dyson didn't postulate a
hollow shell, but a massive swarm of objects.
The short version: this book was a disappointment.
About 2 decades ago, Stirling wrote 2 books that modernized the mid 20th >> century Planetary Romance genre (_The Sky People_ and _In the Courts of >> the Crimson Kings_). Both Venus and Mars had been terraformed during the >> Mesozoic by a highly advanced interstellar civilization and had been
seeded by life from Earth (with periodic inserts of more species,
including humans, up to about 5 thousand years ago for Venus and perhaps >> 200 hundred thousand years ago for Mars). The most advanced cultures on >> Venus were Bronze age, but Mars had a uniform civilization with
extremely advanced bio-tech on a dying planet. In the epilog of _In the >> Courts of the Crimson Kings_ some gates were opened that connected Venus >> and Mars to other worlds, and Earth to a hollow sphere, 2 Astronomic
units in diameter.
These two books have recently been reprinted by a new publisher and
Stirling wrote a 3rd title, _Lords of Creation_ to go with them. People >> are exploring that sphere, but NONE of them appear to be aware
that a hollow sphere has no internal gravity force. They are all walking >> around in a 1 g field.
Oops, I made a mistake above. I was looking for something else in this >title and noticed Stirling's handwave (which I had somehow missed when I >read the book). The people are unconcerned because they know what they
are walking in (at least they have a photo from a big telescope of an >object of the right size whose interior would have the apparent 1 g
field they are experiencing). What Stirling has is a big hollow sphere >that is rotating and has large protrusions at the poles (large enough to >be seen in the picture). Result, 1 g everywhere on the interior surface.
That will only produce one gee for regions at a specific radius to
the axis of rotation. Regions closer will have less and regions
farther will have more.