Why fire is capable of causing harm to anything

The fire we usually see is a violent chemical reaction between oxygen and combustibles in the air (such as: dry wood, gasoline, paper, etc.), and produces a large amount of light and heat.

However, at room temperature, the combustibles we see daily do not react violently with oxygen, and must reach a certain temperature before they occur, which is the ignition point.

If additional heat is provided to make the combustible material reach the ignition point for combustion, we call it ignition, we strike the match, the match is on fire, and the match head reaches the ignition point by rubbing the heat.

When a part of the combustible material is ignited and burned, the heat generated by its combustion causes the other parts to reach the ignition point and burn, so that the part is ignited one by one without stopping the burning immediately, which is the continuous combustion and the spread of fire, so as long as we light a combustible, it will continue to burn until it is completely burned to ashes.

However, if the heat generated by the combustion is not enough to make other parts reach the temperature above the ignition point due to the heat loss being too severe, the heat being transferred too much, or the scope of the combustion area being too small, or the combustibles cannot contact or cannot fully contact the oxygen in the air, the combustion will stop, which is called "extinguishing".

Fire can burn combustibles, firstly, because the fire itself produces a large amount of heat, so that the combustibles reach the ignition point and continue to burn and finally turn into ashes; The second is that the object placed in the flame is deformed or even melted.

After the invention of artificial fire, primitive man mastered a powerful force of nature, which promoted the development of human institutions and society, and finally separated man from animals.

Humans, like animals, were initially afraid of fire. Later, he gradually discovered the benefits of fire, and the meat that had been grilled tasted more delicious, so he took the initiative to use fire.

Fire was one of the important means of hunting for primitive people. The use of fire to drive away and encircle wild beasts has been effective and has increased the production capacity of hunting. Burning grass as fertilizer to promote the growth of wild grasses was naturally inherited by later nomadic tribes.

The original agricultural farming method, slash-and-burn, relied on fire. As for the primitive handicraft industry, it is inseparable from the role of **. Bows and arrows and wooden spears are to be grilled by fire.

In the future, pottery making, smelting, etc., could not be completed without fire.

Fire is the foundation of food cooking. It should be said that with fire, there is food culture. Before they were able to use fire proficiently, the ancestors could only live a primitive, animal-like life.

The so-called "food of herbs and trees, meat of birds and beasts, drinking their blood, and their hair." As said in "Han Feizi": "The people eat fruit mushrooms and clams, and the fishy smell hurts the stomach and intestines, and the people have many diseases."

However, after humans were able to skillfully use fire, the diet of human beings underwent a drastic change, that is, the so-called "cannon is cooked, which makes people have no abdominal disease, which is different from that of animals." ”

"Fire" is a burning luminaire that we cannot do without in our daily life, which makes people change their habits of raw food and helps nutrient absorption. The fire also heats up, allowing you to enjoy the warmth of summer even in the cold winter. As the saying goes, "there are pros and cons to everything", and "fire" is no different.

The correct use of fire plays a vital role in the survival of human beings; But if used incorrectly, it can become a scourge (fires are terrible). Fire can emit light, generate heat, generate electricity, fire can also propel spaceships into the sky, fire can also heat up, barbecue food, etc. The beacons on the ancient beacon towers could be used to convey messages, and fireworks brought joy to people during festivals.

Fire can be of many uses to us, but it is also harmful, it can burn forests, houses, and people.

1. Fire can burn the material wealth created by human beings through hard work, and turn factories, warehouses, towns, villages and a large number of production and living materials into ashes, which affects the social and economic development and people's normal life to a certain extent.

2. The fire also pollutes the atmosphere and destroys the ecological environment. Not only does the fire put some people in limbo, it also devastates lives, takes the lives and health of many people, and causes physical and mental suffering that will not be erased.

3. Property damage caused by fire, and life injury if the fire is serious. Fire and water are ruthless, once a fire occurs, it will cause unacceptable damage to people's lives and property.

No, fire is still very useful.

As cold as winter, the fire can keep warm.

Fire is needed to cook dishes.

In ancient times, fire was also needed for lighting at night.

Like doing jewelry processing, you also need fire.

When using fire, there must be people watching it, so that it cannot spread, and a fire will harm lives and burn property.

Why is stomach fire capable of causing harm to anything? Water and fire are merciless, where there is fire, we must pay attention to safety, the fire is easy to catch fire, causing trouble, so we must pay attention.

He can burn most of the things that exist so far, and there are still many things that can't do harm.

Because he can burn to what currently exists for the most part.

Fire can burn many things, and he can destroy some organizations.

Because fire can make an object burn, but it is not effective on any object.

It can't be considered anything, and there are still many things that can't do harm.

Because he can destroy some organizations.

It's because the fire is special.

Because fire can burn many things.

Fire doesn't have much effect on water.

This is because of the special nature of fire.

Fire is an intense oxidation reaction that takes place during the combustion of matter, and its energy is released in the form of light and heat, in addition to producing a large number of products. The fire must have combustibles, high enough heat or temperature, and oxidants to coexist in order to start a fire, all of which are indispensable.

The visible part of fire, called flame, can take on different shapes as particles vibrate, and can take the form of plasma (fourth state, similar to gas) when the temperature is high enough. Depending on the substance burned and the purity, the color and brightness of the flame will vary.

Everything has a melting point, so fire is capable of causing damage to anything.