Mankind has gone through many difficulties step by step. From the backward era to the high-tech era, we can see that human beings have worked hard in the process of development to get to the present. Since the industrial revolution, it seems that human beings are in the field of science and technology. Riding a rocket? Similarly, in just over 200 years, the quality of human life has been greatly improved. On such a comfortable earth, people began to breed the next generation, making more and more human beings on the earth.

1

With the rapid growth of population and the increasing demand for resources, the development of human science and technology cannot be separated from the resources on the earth. In recent years, in order to improve the progress in the field of science and technology, a large number of resources on the earth have been lost, some of which have been exhausted, and these resources are non-renewable. It can be seen that human beings only consider themselves in the process of development. On this issue, mankind has gradually replaced it with new energy sources, such as tidal energy, wind energy and solar energy, which can reduce the consumption of the earth's resources, but cause great pollution to the environment.

2

Humans have not stagnated, but have continued to develop through generations of inheritance. The number of human beings on the earth has been increasing, but the resources on the earth are decreasing year by year. We have to find other energy sources to replace the exhausted energy sources on the earth, so scientists want to use light sources. Light is extremely important to us human beings, and photosynthesis can only be carried out by light plants. Is the light source really that well controlled?

three

Light travels very fast, so far nothing can exceed the speed of light, which means that the light source contains infinite power. Some people think that the light source method can start with the particles of light, and the light travels very fast. If humans can successfully put it? Take it off? Then humans can use it to make superluminal spacecraft, making it easier for humans to enter the universe.

four

Because human technology is limited, want it? Take it? The speed of light is harder than climbing into the sky. Everyone has access to light all the time, but it cannot be used by human beings? Work? Everything in the universe can only approach the speed of light, not exceed it. Therefore, people can only imagine building a spaceship faster than the speed of light. At present, there is a shortage of energy, and human beings can't find other resources to replace it for the time being, so everyone should learn to save resources in their daily lives.

five

Scientists try their best to create new energy sources, but compared with other energy sources, new energy sources are far inferior. I believe that with the passage of time and the progress of science and technology, light energy can be used by human beings. Once human beings can control the energy of light at will, it means that human beings must be advanced civilizations in the universe. Today's earth has become very different from the previous earth, and various resources have been exhausted, or directly affect the survival of mankind. What do you think of this?