While Lin Feng was speaking, a demonstration diagram of the various performance and application scenarios of single-walled carbon nanotubes appeared on the projection screen behind him.

The first scene is the space elevator scene.

"The first huge use we want to talk about is the space elevator!
Because only single-walled carbon nanotubes can withstand the huge pressure of the space elevator.

So when our single-walled carbon nanotubes reach a length of 16 meters, we can use the rope weaving method to build a space elevator.

What would it mean if a space elevator could be successfully built?

It means that humans can develop extraterrestrial resources at low cost!
Although the earth looks very big, it is actually very small!
So small that as the population swells to 70 billion, we all feel the tremendous pressure of insufficient resources.

And this pressure will continue to increase as the population expands.

In the process, if humans want to solve the problem of resource shortage, they can either collect resources from deeper underground and under the ocean, or go out of the earth to collect resources.

Not to mention collecting resources from deeper underground and under the ocean, it is even more difficult to go outside the Earth and collect extraterrestrial resources.

Because the cost of space rockets is too high, to the point where it is unaffordable.

Even if Mascus's reusable rockets can greatly reduce costs, the cost is still too high.

It can be said that it is simply impossible to rely on aerospace rockets to collect resources outside the earth, and the cost of investment is far greater than the gains.

Unless we develop controlled nuclear fusion technology and directly develop spacecraft, it will be impossible to make a profit by collecting extraterrestrial resources.

But now with single-walled carbon nanotubes, things are different, because the space elevator made of it is very cheap and environmentally friendly!

Aerospace rockets use chemical energy. These chemical fuels are not only expensive, but also extremely harmful and toxic.

Therefore, the manufacturing and operating costs of aerospace rockets are both very high. On the contrary, space elevators only need to use electricity and are very environmentally friendly.

Although electricity currently relies mainly on thermal power generation, it seems that the pollution and harm of rocket chemical fuels are transferred from one hand to the other, but this is not the case in reality.

Because the role of single-walled carbon nanotubes is so great, the space elevator is just a tiny part of it.

Take the electric power industry for example. Electric power is nothing more than three parts: power generation, transmission network and terminals.

Currently, global electricity generation mainly relies on thermal power generation, and the proportion of thermal power generation in various countries usually fluctuates around 70%.

The reason is that thermal power generation is more efficient and the technology is the most mature. After all, humans have been playing with thermal power for hundreds of years.

However, the global power generation sector will undergo tremendous changes in the future, because the birth of our single-walled carbon nanotubes will soon trigger a great revolution in the field of wind power generation.

I believe that anyone who has studied physics knows that the power generation efficiency of a wind turbine is related to wind speed and wind force.

In short, the larger the fan, that is, the longer the fan and the larger the blade area, the more wind energy it can be exposed to, and the higher the ultimate power generation efficiency.

But why do current wind turbines not have blades longer than 100 or even 200 meters?

The reason is still a material problem. The metal alloys currently made by humans simply cannot withstand the weight of a fan blade that is hundreds of meters long and the force of the external strong wind on the fan blade.

Therefore, the largest wind turbine currently does not exceed 90 meters. Ultimately, although wind turbines have many advantages, the actual proportion of wind power generation is still very low.

However, now that single-walled carbon nanotubes are practical and mass-produced, the material problems that have plagued super-large wind turbines no longer exist.

Because our single-walled carbon nanotubes can even build space elevators, it would be a piece of cake for a small 100-meter wind turbine to withstand the pressure.

Not to mention a hundred meters, even super-giant fan blades of two hundred meters, three hundred meters, or even five hundred meters or one thousand meters can be easily supported.

It's nothing more than a matter of the proportion of composite materials doped with single-walled carbon nanotubes.

The higher the content of single-walled carbon nanotubes in the composite material, the stronger the composite material's resistance to pulling, twisting and deformation.

Therefore, when single-walled carbon nanotubes can be mass-produced and their length can reach 16 meters, it will mean that the era of super-large wind turbines has officially arrived.

With the power generation efficiency and cost of super-large wind turbines, I have reason to believe that we can reduce the proportion of thermal power generation, a highly polluting and energy-intensive power generation mode, to a very low level.

By then, the earth's environmental pollution and carbon dioxide problems will be greatly improved.

By then, people around the world will definitely be able to use lower and cheaper electricity prices.

It can even be said that with the cost advantages and power generation efficiency advantages of super-large wind turbines, once they are really popularized on a large scale, it is possible to cut electricity bills in half.

This is the great significance of achieving a single-walled carbon nanotube length of 16 nanometers and then being practical and mass-produced! "

After hearing Lin Feng's words, the audience was quiet for a moment, and then burst into warm applause!
The space elevator that Lin Feng talked about earlier is too far away from people, so people don’t have much sense of it and naturally don’t have a deep impression of it.

But now, we hear that if super-large wind turbines can replace thermal power generation on a large scale, the price of electricity, which is closely related to everyone, may be reduced by half, which makes everyone feel surprised.

After all, with the development of the times, human beings have become more and more dependent on electricity. Not only is their daily life inseparable from electricity, but even when the battery of their mobile phones drops to 50%, they will panic and want to charge it.

Therefore, as humans become increasingly dependent on electricity, the reality is that electricity costs will eventually become increasingly high.

If the electricity bill can be reduced by half, or even just by one third, it would be a great thing.

So faced with this situation, how could they not applaud happily to express their excitement?

In response to this, after the applause subsided for a while, Lin Feng and others continued to introduce the benefits of using single-walled carbon nanotubes in the field of power transmission.

When people heard that metallic copper/carbon nanowires doped with single-walled carbon nanotubes could actually reduce energy losses in the power grid on a large scale.

When it is expected that the energy loss rate of the power grid will be reduced from 8% to 12% to below 5%, people once again exclaimed in amazement.

Because the energy loss rate of the power grid has been massively reduced, it means that we can have more electricity out of thin air, and what will ultimately be reflected in the market is lower electricity bills.

It can be said that the two application scenarios of single-walled carbon nanotubes mentioned by Lin Feng alone make people feel that single-walled carbon nanotubes seem to be a universal material. (End of this chapter)