People can trample on insects, but why can t they trample on bacteria?

I think that although insects are small, they can still be seen to the naked eye, so they can be trampled to death. However, because the bacteria are too small and not visible to the naked eye, humans will not cause substantial harm to the bacteria after stepping on them.

Insects and people are both living organisms that we can see, we can touch insects, we can't easily see bacteria, and bacteria are very small, they can exist in any small crevice, we can't touch them.

Insects have a body volume that is visible to the naked eye, and your pressure can have a lethal effect on it, but bacteria are invisible to the naked eye, and can usually be seen with a microscope, and your pressure will not work on it.

Because the bacteria are so small that they cannot be seen with the naked eye, and there will be a lot of gaps under the feet of people, people cannot step on the bacteria.

Because the bacteria are so small, there is a gap between the human shoes and the earth, and the bacteria can live in these gaps and will not be affected by the shoes, while the insects cannot, the size of the insects is too large.

Bacteria are everywhere all the time, whether in daily life or in human beings, there are all kinds of bacteria, so we must pay attention to hygiene, wash hands frequently, prepare more hand sanitizer, and don't let the germs from outside take you home.

Because we can't see or touch bacteria, humans can't step on them.

Because bacteria are microorganisms, humans can't see them at all, how can they step on bacteria, bacteria belong to the microcosm and don't match the things of the macrocosm.

Some bacteria can definitely be trampled to death when walking, but that is only a very small part, and the vast majority will not be trampled to death.

Remember when the junior high school physics book explained the concept of friction, even when two very flat objects touch, the microscopic surface of the object is in jagged contact? Bacteria are abundant and widespread on the bottom of shoes and in the dirt. Bacteria are found both in jagged protrusions and depressions.

When the shoe is in contact with the ground, especially when it comes into contact with the concrete floor, the pressure at the jagged protrusions where the two surfaces meet is much higher than the pressure on the ground. This pressure is enough to crush bacteria that happen to be at the top of the jagged protrusions, so when a person walks, they can still step on the bacteria. But the vast majority of bacteria in the jagged protrusions are still unharmed.

Therefore, although bacteria can be trampled to death, the number is negligible to be negligible.

Although the dust picked up by people when they walk will take away some of the bacteria, it will not take away all the bacteria, otherwise the surface of the object can be sterilized and disinfected with a hair dryer.