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Greetings and a Question
#4
The mention of Earth's radius was only to put the number into some sort of a scale. Cm per km would have been better in retrospect. Water hoop is a nice idea, it would solve both the stretching and acquiring mass, basically the biggest problems (seems to me) of this design. Getting hydrogen and oxygen would require much less hassle than metals and silicon and such.

Losing energy to deformation did cross my mind, but I failed to give it a second thought. I don't have any clue on the magnitude of these forces, and what kind of counter forces you'd need, nor how to administer them. Another new question.

The questions I had in mind for the simple case:
  • The problem with acquiring the building material / mass
  • Is it sufficient to model the thing as an infinitely long cylinder, given that it is pretty massive (ie. would you have to account for the gravity of the far side of the world when looking at surface gravity)?
  • The problem of stretching
  • Since the torus turns along the 'circular axis' as well as around the sun, would gyroscopic precession be an issue? I have trouble a) getting gyroscopes in general, and b) thinking of the structure in terms of rotation to begin with: if you thought about it as distinct cylinders rotating, what would it mean to have each cylinder's axis push at the next one's at whatever angle would result? How about thin disks? Would the forces manifest as shear forces or just cancel each other out when the disk's size approaches zero? Simply put, would the torus disintegrate into a string of individual planets?
  • How to stabilize the whole inherently unstable thing? Active masses moving around?
Questions about the complex case (double helix tori):
  • If the loops were thick enough or near enough to become Roche-like, what shape would they be, thanks to the different falloff of long cylinders vs. point masses?
  • Would there be a magnetic field, or more generally, is there a net charge on an planet (more detail in the post)?
  • What can be said about the weather, wind directions and such?
  • Is the math sound?
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Messages In This Thread
Greetings and a Question - by srjskam - 04-22-2018, 12:21 AM
RE: Greetings and a Question - by Drashner1 - 04-22-2018, 01:35 AM
RE: Greetings and a Question - by stevebowers - 04-22-2018, 03:20 AM
RE: Greetings and a Question - by srjskam - 04-22-2018, 04:18 AM
RE: Greetings and a Question - by selden - 04-22-2018, 04:47 AM
RE: Greetings and a Question - by srjskam - 04-22-2018, 09:08 PM
RE: Greetings and a Question - by Drashner1 - 04-22-2018, 05:09 AM
RE: Greetings and a Question - by Rynn - 04-22-2018, 10:56 PM
RE: Greetings and a Question - by srjskam - 04-22-2018, 11:36 PM
RE: Greetings and a Question - by Rynn - 04-22-2018, 11:55 PM
RE: Greetings and a Question - by srjskam - 04-23-2018, 12:19 AM
RE: Greetings and a Question - by Drashner1 - 04-23-2018, 02:03 AM
RE: Greetings and a Question - by Rynn - 04-23-2018, 04:42 AM
RE: Greetings and a Question - by srjskam - 04-23-2018, 05:09 AM
RE: Greetings and a Question - by Rynn - 04-23-2018, 05:14 AM
RE: Greetings and a Question - by Drashner1 - 04-30-2018, 01:10 AM
RE: Greetings and a Question - by srjskam - 04-30-2018, 02:14 AM
RE: Greetings and a Question - by Rynn - 04-30-2018, 02:35 AM
RE: Greetings and a Question - by stevebowers - 04-30-2018, 07:27 AM

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