Civilizations: Dyson´s sphere

Hi,
Again I will write about civilizations but this time only about Dyson´s spheres which I mentioned before as a thing which would be used by civilization of type II and type III.

View larger. | Artist's concept of a Dyson sphere via SentientDevelopments.comBecause there is high probability of all civilizations using energy, we assume that all “worlds” will need more and more energy as their population grows.
At one point there wont be enough energy on its home planet. They/we will need some source of energy which would be kind of permanent. Here comes this Dyson´s sphere because it is a sphere which surrounds home star and collects its energy.https://i2.wp.com/upload.wikimedia.org/wikipedia/commons/f/f7/Dyson_Ring.PNG

First there are smaller types of Dyson´s sphere like a Dyson´s ring. It is ring of objects sharing the same orbit and collecting energy of star. They would transfer the energy by wireless power transfer.
Expansion to ring is swarm which is lot of rings around star. BUT those ring´s orbit would intercept each other so it would be really difficult to avoid some crush.
To solve this you would have to have statellites instead of satellites. Those would be objects which would be stationary and they would not orbit the star. Those things would fight with gravity by large sail which would be pushed away from the star by solar wind. BUT this sail would have to be extremely light.. when I say extremely I mean very extremely because paper has 80g for squared meter and this sail would have to be about 0.7g for m^2. This would require ultra light nanotubes.
Last type is sphere which would collect almost all energy made by star. It would be extremely difficult to stabilize it and collect all the material.

https://i1.wp.com/i.qkme.me/3s64lw.jpgDragallur

Civilizations: Kardashev scale

Hi,
I learned some stuff about fermi paradox and alien worlds in past few days so I will try to do my best in describing this stuff. I found it really interesting.

So there is scale which is called Kardashev scale. It is scale that describes civilizations by three levels: Type I, Type II and Type III.

Type I
It is type that we are heading towards. Civilization of type I should be able to use all the available resources on its home planet which means it could fuse hydrogen into helium by nuclear fusion or it could use antimatter-matter anihilation to create enormous amounts of energy and would use sunlight, windpower or waterflow in large scales.

Type II
Type two civilisation would need even more energy which would cause in using all or almost all energy created by closest star (Sun). This “thing” is called Dyson´s sphere because it surrounds star and collects its energy. There are different types of Dyson´s sphere like: ring or swarm which are not that effective.

Type III
It is only extension to Type II because that civilisation would be able to use the energy of whole galaxy or multiple galaxies by Dyson´s spheres. Also there are some things like white holes or quasars which would also create a lot of energy so this type of civilisation could use them.

There is also extension for IV and V type.
4th would use whole universe while 5th would be able to use energy from multiple universes.

Dragallur