Energy sources on Earth that can be used by humans include: solar energy, wind energy, hydropower, tidal energy, geothermal energy, energy nuclear power and fossil fuels.
Only nuclear energy, geothermal energy and tidal energy have nothing to do with the sun
1: Solar energy, nuclear fusion occurs inside the sun and the energy spreads to the earth in the form of light in space
Generated from solar energy: wind energy, water energy, principle of fossil fuels as shown in the figure
Remember to read the following picture in order, read the ①②③ red text description in order
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2 Nuclear energy is energy obtained by the fission of heavy nuclei or the fusion of light nuclei. Light nuclear fusion is a fusion reaction of the protium, deuterium and tritium, which is safe, non-polluting and high energy. Heavy nuclear fission refers to the fission of substances such as uranium-238 into substances with smaller relative molecular masses, which have relatively high energy. high hidden dangers and will produce polluting nuclear waste Great energy. Protium, deuterium and tritium are hydrogen nuclides. There are extremely large amounts of protium, deuterium and tritium in the ocean. Chinese scientists once said: inexhaustible. Because it is renewable, unlike uranium 238, it disappears after use and is harmful to humans. Heavy nuclear materials should have been brought by earlier meteorites and comets, and some were obtained in collisions with certain celestial bodies during the formation of the Earth.
3 Geothermal energy is heat insideenergy from the earth brought by magma and other substances, such as hot springs.
4 Tidal energy. Tidal energy doesn't come from the sun or the earth, it comes from the moon.
We know that there is an ebb and flow of tides every day, and the ebb and flow of this half of the earth is the ebb and flow of the tide on the other side . Indeed, the gravitational pull of the Moon on the water on Earth causes the water to move closer to the Moon on Earth.
So why can't the sun attract? Isn't the mass greater? Reason: Although the sun is more massive, the distance between the earth and the sun is too great and there may be hundreds of moons in between, or even more. The moon is attached to the earth, and because of tidal locking, only one side of the moon faces us. Only from this side, we cannot see the back of the moon from the earth!
At this point, I hope I can help you!
I wish you happiness, health and all the best
Solar energy is a renewable energy source. It refers to the radiant thermal energy of the sun (see the three modes of propagation of thermal energy: radiation), and its main manifestation is often called solar rays. Nowadays, it is typically used to generate electricity or provide energy for water heaters.
Since the birth of life on earth, it has mainly relied on the energy of thermal radiation provided by the sun. Since ancient times, humans have also known how to use sunlight to dry objects and use it as a method. to prepare food, such as making salt and drying salted fish.
Technical principle:
Solar energy is generated by the fusion of hydrogen and helium from hydrogen atoms inside the sun torelease enormous nuclear energy. Most of the energy needed by humans comes directly or indirectly from the sun. Plants release oxygen, absorb carbon dioxide, and convert solar energy into chemical energy through photosynthesis. stored in the body.
Reference for the above content: Baidu Encyclopedia——Solar Energy