In our rocket power fuel, there are mainly two kinds, one is to rely on oil to provide power, which is the most common one and also the fuel used when the rocket was first invented. The advantage of burning oil to power rockets is that the price is relatively cheap and there are many oil resources, so you can buy oil resources without spending too much money. Its disadvantage is that burning oil will cause great damage to the air environment, especially after the rocket enters the atmosphere, the exhaust gas will stay in the atmosphere for a long time and will not disappear immediately, which will directly lead to man-made damage to the atmosphere in the long run.
In addition, burning oil makes a loud noise, which will also disturb the people and even affect the surrounding ecology. On the other hand, because we dig out the oil artificially, the further refined oil is not particularly pure, so it can't be fully burned when burning, and the combustion efficiency is around 70%, which is very low.
In order to protect the environment and explore new energy sources instead of oil, we found hydrogen and oxygen and built a hydrogen-oxygen rocket. Compared with ordinary rockets, this kind of rocket has obvious advantages. First, hydrogen-oxygen rockets rely on hydrogen and oxygen to provide energy. Hydrogen and oxygen are produced conveniently and in large quantities. We don't need to worry about the lack of hydrogen and oxygen resources. Secondly, after hydrogen and oxygen are fully burned, carbon is released, which is what we call carbon dioxide, so that air pollution will not be caused, and carbon dioxide can be absorbed by other substances, which is very environmentally friendly.
Finally, when the hydrogen-oxygen rocket is launched, the noise can be kept within a good level, which can effectively avoid noise interference and reduce the impact on the surrounding residents and the environment.