In 1972 there was no such thing as physics

Physics is the study of the most general laws of the motion of matter and the basic structure of matter. As a leading discipline in the natural sciences, physics studies the most basic forms and laws of motion of all matter, from the universe to elementary particles, and thus becomes the research foundation of other natural science disciplines.

No. First, there was mathematics, which in the early days became an independent system, especially geometry.

Physics is gradually differentiated from natural sciences and natural sciences (once called natural philosophy) into physics, chemistry, etc., and is still gradually subdivided.

Physics has always been a course, if you didn't have it before, then you didn't learn this physics, and it's not the same subject as mathematics.

Physics is separated from mathematics. Physics and Mathematics, formerly known as Mathematics and Physics!

Of course there were, about the same as now, except that it was spring admissions.

No, there will be classes, only the first half of the day, the second half of the day is labor, and there are generally no long holidays.

Professional counterpart medical device research and development.

Galileo Galilei (1564-1642) was the founder of modern physics and laid the foundation for the development of modern physical science.

Physics is a natural science that studies the most basic structure, the most universal interactions, the most general laws of motion, and the experimental means and thinking methods used in the material world. It's magical.

It's the crutch of a blind man.

for the self-blind to find their way in the dark. Also called "pathfinder"!

And I don't know that people who can open their eyes to see the world walk directly with "seeing"!

It's like people who have five senses enclosed, and one of them has a very difficult time understanding the world, and they can't understand what black and white are in a mouth that can see the world with their eyes. But in the eyes of those who 'open their eyes' to see the world, those who walk back and forth on the blind road are like ants crawling in the two-dimensional world. Because people can easily get there, just take a small detour and walk around, ride a bicycle upside down, or jump over a plane.

And in the world of the blind, there is only that crutch

Junior high school physics: a discipline that studies the laws of the operation of things, focusing on electromagnetism, mechanics, and optics.

High School Physics: Metaphysics.

Optical sights for firearms, the use of optics.

Now the electromagnetic cannon is being developed, using electromagnetism.

A boat's sonar system, which makes use of acoustics.

The wing of an airplane, using fluid mechanics.

And so on and so forth, and so on, and you will find out if you look closely.

The world is originally a physical world, and all aspects of the performance of various ** equipment are affected and applied by physics

The scope of physics is too wide, including all aspects of our lives, if a country's physical technology is good, the strength in all aspects will be strong!