Let's build a Dyson sphere.

[Faithfree]

What's that ?

Dyson vacuum cleaner ..... I think.

[Don't Panic]

I would say Class II impossibility*. We would need the mass/energy of several stars for this to work.


*Class I is not with current tech but probably within the next century.
Class II is not with current tech but not against the laws of physics, as we understand them.
Class III is against the laws of physics, as we understand them.

Source: Michio Kaku: Physics of the impossible.

The major problems would be the construction material, no gravity, and getting hit by a stray rock.

The other major problem is that given human tendencies towards pollution the inside of the sphere would have a similar atmosphere to Venus within 100 years.

[Gawdzilla Sama]

I would say Class II impossibility*. We would need the mass/energy of several stars for this to work.


*Class I is not with current tech but probably within the next century.
Class II is not with current tech but not against the laws of physics, as we understand them.
Class III is against the laws of physics, as we understand them.

Source: Michio Kaku: Physics of the impossible.

The major problems would be the construction material, no gravity, and getting hit by a stray rock.

The other major problem is that given human tendencies towards pollution the inside of the sphere would have a similar atmosphere to Venus within 100 years.

We need advanced technology to even consider the thing, so I'll just go ahead and invent some more. First, a machine for converting one type of matter into another, bulk rate. Anything that goes in comes out as Dysonium. This material is ultimately rigid in one state, easily formed and molded in another, and those states are switched with very low energy cost. So we build the parts of the sphere out in the Oort Cloud and when we've cleaned up the solar system they're moved into position.

Then we use modified versions of the Dysonium generator to scrub the atmosphere.

[Don't Panic]

I would say Class II impossibility*. We would need the mass/energy of several stars for this to work.


*Class I is not with current tech but probably within the next century.
Class II is not with current tech but not against the laws of physics, as we understand them.
Class III is against the laws of physics, as we understand them.

Source: Michio Kaku: Physics of the impossible.

The major problems would be the construction material, no gravity, and getting hit by a stray rock.

The other major problem is that given human tendencies towards pollution the inside of the sphere would have a similar atmosphere to Venus within 100 years.

We need advanced technology to even consider the thing, so I'll just go ahead and invent some more. First, a machine for converting one type of matter into another, bulk rate. Anything that goes in comes out as Dysonium. This material is ultimately rigid in one state, easily formed and molded in another, and those states are switched with very low energy cost. So we build the parts of the sphere out in the Oort Cloud and when we've cleaned up the solar system they're moved into position.

Then we use modified versions of the Dysonium generator to scrub the atmosphere.

Science fiction conventions hold that neutronium would be one of the few suitable materials for constructing a Dyson Sphere.

[Feck]

Ring Worlds have less problems than spheres and let's face it the rationalia Ring world would have to be Rim world :-)

[Gawdzilla Sama]

Science fiction conventions hold that neutronium would be one of the few suitable materials for constructing a Dyson Sphere.

But Dysonium isn't made with in Chinese slave labor camps.

@Feck. Ringworlds are good, lots of room there at least for a few million years. I have no doubt humans would over-populate a ringworld if given enough time.

It would be "fun" to set one up and seed it with intelligent oxygen based lifeforms of various kinds and see what happens. Perhaps establish them far enough apart so that it is a major effort to reach the next "colony". Then set back and watch.

[Horwood Beer-Master]

Inspired by the Rings of Earth thread.



Billions of times the living space of Earth, ALL the energy of the sun available for use. And just three meters from "outer space". What's not to love.

Comets will love that!

Actually, you harvest the Ort Cloud for material to make the Sphere. Don't want any loose change rattling around the system when you're done, now do you? Same with all the other planets.

It needs windows.

But then it could crash.