There is optics how there is no fire science

Hello, this is mainly the size of the application scope, and the other is whether this thing can continue to be broken down into other fields.

Optics, as a very widely used scientific field, telescopes, cameras, sights, laser navigation systems, etc., etc., all need to use it! Moreover, there is no way to divide it any further.

Without the study of systematic optics, it is simply impossible to make those complex optical instruments.

Let's take a look at the things that are related to optics that we can come into contact with

Cameras – Optical Design Optical Materials.

The infrared interface of the mobile phone.

Optical mouse – optical design, etc.

Computer screens – polarized light.

Broadband Networks – Lasers.

Cat's eye (door mirror) – optical design.

Telescopes – Optical Design Optical Materials.

Computer Optical Drive - Laser.

But what about "fire science"? Hehe, if you can call it that, first of all, fire is not a separate special thing, just a relatively violent form of chemical reaction, any reaction, as long as it is very violent, then it will be outside ** to the form of flame! In other words, it can be broken down by other domains.

For example, rockets, Spitfire, right? In fact, rocket engines do not need to study fire, but to study aerodynamics, and it has nothing to do with fire, even if it has something to do with fire, that is, the material should be afraid of fire, right? - That's the science of high-temperature materials.

There is nothing directly related to fire. Even if you study fire, it will eventually be broken down into air and things, and high-temperature resistant materials. So, there's no need for such a thing.

And steelmaking, in the past, steelmaking was all about direct fire, and people need to study how to make fire hotter? and to burn as completely as possible (to save fuel)?However, when it comes to research, it's not about fire — there's nothing to study — it's about chemical reactions.

Because flame is just a by-product of a chemical reaction.

So, there is optics, but at least for now, there is not much need to create a "fire science".

Because the theory of photons was proved by Albert Einstein to be pure.

Light is made up of photons.

And the theory of fire, phlogiston, was overthrown in the 17th century (because of the discovery of oxygen), so there was no fire science...

Because fire is the process of releasing energy in the form of light after the matter is burned, in fact, when you see fire, you see the light emitted by the substance at high temperatures, simply put, a piece of iron is heated and emits red light, which you must not think of as fire, because it is different from the fire you usually see. And if you burn a piece of paper, you will find that the edge of the paper is burned to a red glow, on this basis, you can see the flame, this flame is actually the reason why the heat temperature of the paper is transferred to the air, so that the molecules in the air have energy and then shine, the density of the heated air becomes lighter, rises upward, and forms the shape of a flame, if you blow lightly at this time, the flame will shake, which is the result of air flow. So there is no need to study fire, it is enough to study chemistry and optics, fire is one of the many phenomena in which an object emits light at a certain temperature.

For example, phosphorus fire, you should have heard of it, the ignition point of phosphorus is only four degrees, the temperature is not high, if it is not a large piece of phosphorus, you can't see any flames, like a star, this is also fire.

1.Basic Properties of Light 2Refraction and Reflection3Lens Principle 4Color.

Light travels in a straight line, mirrors, lenses, reflection and refraction of light.

Beihang University, Beijing Institute of Technology, Nanjing Institute of Technology, Huazhong University of Science and Technology, Northwestern Polytechnical University, Sichuan University, Institute of Optoelectronics, Institute of Optics and Mechanics, Beijing Industry.

South China Normal University is not bad, and there are 4 academicians in the School of Optoelectronics, Electronics and Information.

Harbin Institute of Technology, there are academicians to carry it.

The ancients spared no effort in learning, and the young and strong worked hard to become old. On paper, I finally feel shallow, and I never know that I have to do it.

The ancients always did their best to learn, and even so, they worked hard and constantly from a young age until they were old.

The knowledge obtained from books is shallow after all, and you must persevere in everything you do, and in the end, if you want to understand the essence of things or things, you must also rely on personal practice.

On paper, I finally feel shallow, and I never know that I have to do it.