"Photosynthesis! I see! But where does our light come from? Is the sun shining? " Ice emperor touched the head of pea shooter. Compared with those dull and reproductive successful products, ice emperor preferred these unexpected failed products.


    "Sunlight must be one of the alternatives! There are solar panel technologies in the photovoltaic industry. When you point silicon wafers, you can easily point them out.


    The early space stations in the future will certainly be equipped with solar panels, and the energy of stars will not be used in vain. Moreover, if we can''t point out the technology of non working medium propulsion, the solar sail may also become an important power source for navigation in the galaxy.


    As for the energy that operates stably in the deep air, first of all, chemical energy can be basically excluded. Under the unit volume, the energy generated by chemical reaction is not enough to support interstellar travel.


    There are not many options left. Soul power is one of the options. The energy contained in a title Douluo is close to the power generation of a small thermal power plant in a day, while the soul core of the title Douluo storing soul power is only about the size of an egg. It can be said that the energy density is very high. "


    "Wait? Is there so little energy in the title Douluo? " The ice emperor was a little surprised.


    "The fact is, how destructive is the title Douluo? The destruction of buildings within thousands of square meters is basically the limit, and a generator set will burn 20 to 50 tons of coal a day.


    In terms of the energy contained, the energy generated by TNT explosion is only 14% of the energy generated by the combustion of equal quality coal, that is, the difference is about seven times.


    140 tons of TNT, compared with tens of thousands of tons of nuclear bombs, may be a brother, but it''s too easy to blow up buildings within thousands of square meters. If you blow up at a fixed point, you can blow up a hundred kilograms of TNT without using it.


    140 tons, no matter how they are piled, can blow up buildings within thousands of square meters.


    Maybe the energy contained in the limit Douluo will be lower, but according to my own calculation, it will not be stronger than that of a nuclear power plant. Even so, before the birth of controllable nuclear fusion technology, the soul force was still the existence with the highest energy density under equal volume. "


    "Does TNT contain less energy than coal?" The ice emperor was a little surprised. When the photographer told her about nuclear bombs, hydrogen bombs and other things, they all used the equivalent of tens of thousands of tons of TNT, which gave her the illusion that TNT was the chemical with the most energy.


    "In fact, it can''t be calculated completely. Coal combustion also consumes oxygen, and the overall quality is more than one ton." Chengying touched the corn pitcher and was buckled on his head with a piece of butter.


    "Hiss... Is it so free?"


    "Wow! It''s so funny that you can put money in butter! " Ice emperor grabbed the pitching frame of the corn pitcher and studied how it secreted butter.


    "Cough, don''t care about the details. In fact, it''s still a little early to think about constant Star Trek. Even if the plant spirits can well solve the ecological cycle problem in outer space, our engine acceleration ability can''t keep up.


    The thrust released by the nine level soul guide propeller can not even accelerate the train to the speed of high-speed railway. Although the classification of soul guide is very stupid, due to the limitations of materials science, the acceleration that spacecraft and human body can bear is indeed limited.


    It is estimated that other planets in the same galaxy turn around like this. "


    "Within the galaxy? By the way, how many planets are there in our solar system? Do you often lie on the telescope and see anything? " The ice emperor asked curiously.


    "Cough! Of course I have! " The photographer coughed twice. The real purpose of the astronomical telescope must not be known to the ice emperor. Fortunately, the technology development bureau also has an astronomy department. The photographer still knows something about Douluo''s solar system.


    "This solar system is very similar to that of my previous life. There are eight planets in total, four solid and four gaseous. The solid is in the inner ring and the gaseous is in the outer ring. We are in the orbit of the third planet. It is estimated that this orbit is the easiest to give birth to life.


    Because the name is weak, I just use the name of my previous life to make it clear that there are eight planets. It''s good to remember! " Chengying shamelessly plagiarized the setting of water, gold, earth, fire, wood and earth. Anyway, the name of the planet has no copyright.


    "Whatever you want, I haven''t seen it anyway. Let''s talk about the planet we may go to first! The one closer. " Ice emperor is not interested in Star Trek, but he is interested in watching the sunrise on other planets with the film.


    "This! It must be the moon! Other planets are too far away. Even with the strongest acceleration means now, it will take more than a year to go. Three or five years will pass once, but there is no time to waste. "


    "The moon? The moon is also good! By the way, have you seen the moon in your previous life? Are the two moons the same? " Ice emperor found Huadian.


    "This is also what I doubt. I was curious about this problem in my previous life. You know, my earth has one of the largest satellites in the whole galaxy. It should not belong to a small solid planet like the earth.


    In particular, the diameter difference between the moon and the sun is 400 times, and the distance between the sun and the earth is exactly 400 times that between the sun and the moon, which makes the sun and the moon look as big, so the sun and the moon are often compared. This is a coincidence in coincidence.


    Interestingly, the sun and moon on Douluo continent are treated equally. Before crossing, I speculated that the moon should look as big as the sun. Especially, I remember that there are people on the mainland who have martial spirits as the moon, which makes me more sure of this view.


    But this is a bit of a coincidence! On a completely different continent, there is a similar astronomical environment, which is like the weights and measures on Douluo continent. It is an academic pit. No one can explain why the circumference of the equator is just 80000 Li. To be honest, I have some very bad conjectures. "


    "I can probably guess what you think. The world we are in is probably created by the author according to the template of your previous life. Does that mean?" The ice emperor looked at the moon in the sky. According to the film, it was almost the same as his previous life.


    "Well, I thought so too, but it doesn''t matter! It''s no use worrying. If we are really just the characters written by the author, it''s no use struggling any more. We might as well think about how to play on the moon! " The film is very open.


    "This is not what the protagonist should say." Make complaints about ice emperor.


    "Hehe! Those protagonists who always want to break through the dimensional wall and punch the author are really unable to see the reality. They can fight, but they are just fake authors. " Chengying shook his head. He has always recorded his character. If he is really a role, he knows that his greatest freedom is his own


    People set up


    [to be continued]


    Collection and recommendation ticket ~