Chapter 3403 (1/2)

After chatting with director Gordon, a policeman ran over and said a few words in his ear before he smoked a few cigarettes. Gordon should have a click in his heart, changed his expression, apologized and hurried away.

Maybe the police officers found Dr. Santo's identity. Maybe the doctor had a driver's license in his wallet? Or maybe someone recognized his shoes?

It doesn't matter. Su Ming's goal of returning the body has been achieved. Everything subsequent has nothing to do with him.

”What do you find?” he walked in the rain with a cigarette in his mouth, came to Lorna's side and leaned against the car wreckage: ”it's better to find someone along the magnetic field. It doesn't matter if I can't find someone. I have a backup plan. Don't put too much pressure on myself.”

”Yes, it's at the south pole, the man we're looking for.” Lorna pulled out her hand soaked in liquid metal and shook it. She straightened up and answered.

The girl looks in good shape. She also talks about inversion.

As like as two peas, she looks too thin and chin sharp, but she has a special ”fan”, who is exactly like the king of magneto.

”Sure enough, did you still use the earth's magnetic field? The strength of the other party's magnetic field is not high, so you suppressed it.”

Kate's face is paler than Lorna's, perhaps because of her red hair. She looks like a dark beauty like a vampire. At this time, she touches her chin and makes tentative guesses, waiting for the capable person to give a definite answer.

The earth's magnetic field, in short, is dipole, which is similar to putting a magnet rod in the center of the earth and passing out near the north and south poles.

The magnetic poles do not completely coincide with the geographical poles, and there is a magnetic declination. Of course, the center of the earth is in a high temperature state, and there is no magnet rod. Instead, the magnetic field is generated by the current effect of the electrons in the outer core rotating with the earth.

In addition, the intensity of the geomagnetic field is very weak, which is another characteristic of the geomagnetic field. At the strongest poles, its intensity is less than 10-4 (T), and the average intensity is about 0.6x10-4 (T), which changes less with place or time, so it is commonly used（ γ)， That is, 10-9 (T) is used as the unit of magnetic field strength.

At this time, Batwoman also understood why the girl sought by the knell was called Polaris.

Because in ancient times, people didn't realize that the earth was a sphere, they began to use the magnetic field to guide the direction, but they didn't understand the specific principle.

Perhaps a student asked the teacher, ”why does the North compass always point to the north?”

Ancient Chinese teachers couldn't tell why. They were so anxious that they scratched their ears and cheeks, but if they couldn't tell a principle, how would students teach their students in the future? Wouldn't this knowledge be passed on?

Sometimes application is more important than understanding. It is a human tradition to use skills that do not understand the principle. Don't expect primitive people to understand the principle of drilling wood to make fire.

Skills are useful and props are useful. Use them first. Studying principles will be a matter of the future.

Maybe the teacher was so worried that he couldn't sleep all night. As a result, he looked up and saw the stars, which gave him inspiration.

Polaris is very close to the north extension of the earth's axis, so people can always see it when they look at the sky at night, so the teacher has the answer and calls the students to point to the sky.

”The magnetic force is brought by Polaris.”

Whether there is such a pair of teachers and disciples is unknown, but the saying that Polaris is the source of magnetic force is widely spread.

Today, with the development of science and technology, Polaris is still regarded as one of the sources of magnetic field in mystics. It is often used by fake dealers as an excuse to sell their crystals that can ”regulate the human magnetic field”.

”I don't care whether he is strong or weak. As long as he is an enemy, kill him.” Polaris showed a lovely smile. Her style is very pragmatic.

”Slade, what do you say?” facing the heavy rain, the orangutan looked up at the man in meditation.