How to make a structure 'Dyson Ball' that surrounds the sun and collects all energy

by Kevin Gill

A spectacular structure called ' Dyson sphere' (Dyson sphere) 'that surrounds the entire star around the entire structure and acquires energy in order to acquire energy efficiently from a fixed star was proposed by astrophysicist Freeman Dyson It was. So, how do you actually make a Dyson sphere? Kurzgesagt , a YouTube channel that deals with science-related animation, explains the simple question:

How to Build a Dyson Sphere - The Ultimate Megastructure - YouTube


Human history is the history of energy consumption. Initially I start from moving the muscle ......

I learned to use fire.

Later, consumption of coal, oil and fossil fuels continues ... ...

Nuclear power generation appeared.

In this way, the utilization of renewable energy has become active and we have come to the point of practical application of nuclear fusion.

If you are lucky, human beings can progress by using resources perfectly without breaking the earth.

The next stage is likely to seek energy outside the earth.

Fortunately, the solar system has an infinite energy source called the sun.

The solar energy is a tremendous amount of 10 Kyoto, an efficient nuclear power plant.

The sun shines by emitting 1 trillion times the energy of a nuclear bomb in a second.

How do I get this solar energy? Is not there a way to acquire all energy, not part of it?

One answer is "Dyson Ball" which surrounds the entire sun and extracts energy.

The invention of Dyson Ball is a great leap comparable to the fact that human beings were able to use fire once.

With the Dyson sphere, the life that remains within the planet can leap to the interplanetary life.

So, what is the shape of a Dyson sphere?

Structures like hard shells of eggs are obliged to be brittle against shocks.

If it collapses with shock, it will be swallowed by the sun and will not fulfill its function.

Therefore, a structure (satellite) like a flock that surrounds the sun is eligible.

A group of satellites surrounding the sun from every direction is not only suitable because it is physically strong but also convenient for humans in terms of ease of making.

However, since the sun is a much bigger object than the Earth, the construction of the Dyson sphere surrounding it is a tremendously magnificent scale.

If you use a satellite with a size of 1 kilometer square, you will need to calculate that you need 3 kiki machines around the sun.

In order to make a satellite of 3 Kyoto, we need metal of 30 Ky ton.

In order to assemble the satellites and place them around the sun, you need to first build infrastructure in space to keep them permanently.

What is required for this magnificent challenge is "material" "design" "energy" 3 elements.

First of all, the problem of "material". "Mercury" is the best way to procure materials in the universe and assemble machines. Mercury is relatively close to the sun, because it is a star rich in metals.

In addition, Mercury has no atmosphere and gravity is as small as one third of the earth, so there is an advantage that it makes it easier to launch the satellites that are created around the sun.

Next, the problem of "design". The simpler the flock of satellites, the better.

Traditional solar panels are too complicated and their lifetime is too short.

For Dyson sphere satellites, a structure that is simple and does not require repair is required. It is necessary to clear the difficult condition that it can be used for a long time at the space level and the manufacturing cost is also small.

They seem likely to be structured like a "mirror".

It is said that the Dyson sphere satellite will have a structure that surrounds the sun and collects energy in the center.

And as soon as the material is obtained and the design is over, there is a problem of how to procure "energy" to actually manufacture the satellite and send it to the sun.

Even if you spend all the fossil fuels on the planet and nuclear fuel such as uranium, you can only launch a mountain with an Everest size at best.

In order to create a Dyson sphere, the problem of 'egg is furthest forward' that energy enough to obtain from Dyson sphere is necessary lies.

However, this problem can be solved. Because sunlight shines down with Mr. Mercury as a material, because it can get energy.

Since Mercury is a difficult environment to live for human beings, it seems necessary to introduce a mechanism to send machinery and make it as automatic as possible.

Four types of "solar collector", "resource excavator", "assembly machine" and "launch machine" should be manufactured.

The solar collector was made with a size of 1 km square, then launched and joined ...

Send energy to resource excavators on Mercury.

With this energy we drill Mercury's surface and take out resources one after another.

The assembly machine manufactures satellites to become Dyson spheres from excavated resources.

It takes too much cost to launch the satellite that has been built up with a rocket.

Therefore, satellites will be launched one after the other into outer space by a launcher that utilizes magnetic force like a rail gun.

An elongated satellite laid out with a rail gun has origami shape.

After that, it spreads in outer space so as to spread the umbrella, it deforms so that we can collect the energy of the sun.

As the satellite starts to be launched, it will be possible to utilize the energy created by the satellite, so the speed from the manufacture of the satellite to the launch will increase exponentially.

When a double game such as "one satellite makes another satellite" begins to occur ...

The number of satellites increased at a stretch every cycle.

After 60 cycles have elapsed, the number of satellites required for the Dyson sphere surrounding the sun is equal.

Even 1% of solar energy will be able to cover the energy of all projects human beings do in the solar system.

Then you can also develop other planets as colonies.

You can move to other planets and build huge structures.

Finally, the civilization that puts the planet in your crotch will be born.

Dyson sphere is a crucial driving force to spread civilization among planets.

There may be civilization which already realized Dyson sphere in the vast Galaxy system.

I can not help to say that the earth is far from reaching this area.

Because human beings contend for immediate interests of resources in the earth.

Whether surviving the "collision which is not quite important in the long run" that human beings themselves created and possibly creating the Dyson sphere for the first time in the universe and expanding the area of activity depends on "imagination" It may be that.