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Of course, you can't explain it that way, because what you eat doesn't necessarily translate into energy when your muscles exert themselves. Secondly, the strength of a person is also directly related to his muscular development. The reason why a person feels strong after eating enough is that the blood sugar concentration rises, and the substances that provide energy to the muscles are more abundant.
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Conservation of energy is not the way to understand it, and strength depends on your body structure, such as muscles, and so on, and it is not directly related to what you eat, but it is indirect.
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The Big Stomach Race and the Hercules Race are not the same event.
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There are two ways to change the internal energy: work done and heat transfer.
When a person is on fire, the person is an independent system, and there is neither external force to do work, nor heat transfer, so the internal energy remains unchanged.
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You can't simply take the law of conservation of energy and use it.
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I believe that we have followed the habit of eating three meals a day since we were born, every day, but have you ever wondered why human beings eat?
I believe that many people's answers are "people are iron rice is steel, a meal does not eat hungry panic", indeed, eating can help human beings relieve hunger, but if only to increase satiety, stone and sand can also achieve the same effect, why do human beings need to achieve energy conversion through food?
Green plants can directly photosynthesize through sunlight to achieve energy conversion, human beings, as higher organisms than plants, need to rely on food to convert energy, why can't human beings just bask in the sun like plants to get enough energy?
Before we do that, we first have to understandThe operation of all things in this world needs energy, whether it is the movement of a stone or the thinking of human beings, which is inseparable from the shadow of energy transformation.
And the reason why plants are able to directly convert solar energy into chemical energy through photosynthesis is because they have chloroplasts, in which photosynthetic pigments play a large role. But humans do not have chloroplasts, so there is no way to convert light energy into chemical energy, and can only rely on the metabolism of mitochondria to convert chemical energy into chemical energy.
Nature is so wonderful that everything has its own role in the natural system, plants play the role of producers to convert light energy into chemical energy and store it, and animals feed on plants to replenish their own energy.
Therefore, as a higher animal, human beings still have to eat food to achieve energy conversion.
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Food is what makes the blood energy, so food is needed. With food, you can fill your body with what you need, so that it can be so strong that you can't understand it.
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According to the law of conservation of energy, people consume calories in the process of daily activities, so they need external food to achieve a state of energy balance, and food can replenish the calories we consume.
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This is because humans are not able to convert energy through photosynthesis and the like, so they can only obtain the energy they need by eating food and then digesting it.
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Because human beings need to consume energy all the time, but the only way to get energy is from food.
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Because food contains a lot of energy that can keep humans moving, and this energy is long-lasting.
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If we think that the big ** theory is correct, the energy of our universe is transformed from all the matter in the previous universe after collapsing to a point, in fact, the law of conservation of energy should be accurately called the law of conservation of mass and energy, and mass and energy can be converted into each other.
The mass of the previous universe is converted into the energy of the universe at the moment of the big **, and part of it is converted into mass in the process of the universe cooling, constituting stars, planets and nebulae.
If you ask where the energy of the last universe came from, sorry, it seems that no one in this world knows yet. ps: Who can understand such a big paragraph on the first floor, can't you make it clearer?
Attached: Introduction to the big ** theory.
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Where does the soul go when you die? The latest science has finally found the answer.
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From a materialist point of view: the soul disappears with the death of a person. It's just that it takes root in people's hearts, and if you think about it, he exists. From spiritualism: some go to heaven, some go to hell, and some have lost their souls. Some are just wandering around us.
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There is no soul, only the main nerve, which may be digested by other bacteria or whatever, or it may wait to die and turn into dust. Of course, there are corpses that eat people, their main nerves have completely or partially died, they have no ability to think, and they are very hungry after resurrection, so they eat things that are alive. As long as the main nerve does not die, you are still you after resurrection, and it can be seen from the conservation of energy that it is not impossible to resurrect people, and it can also be done by making people immortal, but the mystery of human death will take a long time to understand
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According to the biological food chain, what happens to people after death? Wang Dacai, why did you think about this problem at a young age!
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According to the law of conservation of energy, the human body is also a system, and all physiological and physical activities of the human body consume energy, of course, energy must be replenished from the outside world in order to maintain the balance of energy in the body. Therefore, eating and drinking water are indeed positive and necessary activities.
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Unless it is a god, he does not eat fireworks in the world.
Why? Just because you're not a god.
Since this kind of is always something you can ask, you don't know what to say about the conservation of energy!
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According to the conservation of energy, everything a person wants to do is to convert the chemical energy in the body into the required mechanical energy, etc., and there is no perpetual motion machine in the world
The chemical energy in the body is converted from the things we eat.
So it's not okay to not eat
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People are iron, rice is steel, and there is no hunger for a meal.
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Not eating or drinking will affect the normalcy of various organs and nervous system of the human body"Job.
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Energy is neither created nor disappeared out of thin air, it can only be transformed from one form to another, or from one object to another, and its total amount remains unchanged in the process of transformation or transfer.
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The law of conservation of mass is that the mass of an object does not change before and after its reaction.
First of all, I want to correct a mistake. Someone said above that mass and energy are two aspects of materiality, just like human weight and height, not to mention the metaphor, the ontology itself in this metaphor is a wrong concept. The mistake of this proposition is "materialism", which confuses the concept of "thing". >>>More