I really don't want to lie down and win

"It's heavy."

"Shen?"

"Shen!"

Xu Mang hesitated for a moment, then said seriously: "Xiaoman...you seem to have gained weight these few days."

Xu Mang was completely free, and he gained more time at his disposal.

of course,

I didn’t forget to buy motorcycles. On the first day after my freedom, I ordered two motorcycles, Ducati’s Big Devil and 1299.

"Yo?"

"Still losing weight?" Xu Mang looked at Xiaoman on the treadmill with a smile: "I'm going to the rooftop of the magic city. Brother Chuanxiao, an online dating expert, is at work. I just want to talk to him about detecting gravitational waves."

"Fuck off!"

...

Magic City rooftop,

Xu Mang found a buddy with the same style as the factory manager, not to mention... everyone will gain weight every new year, and even the Internet expert Chuan Xiao cannot escape this fate.

"Professor Xu!"

"Welcome to the rooftop of our magic city to guide our work." Brother Chuan Xiao said to Xu Mang.

"..."

"Brother Chuan Xiao, I didn't expect that you, a guy with thick eyebrows and big eyes, would start to be mischievous." Xu Mang said helplessly, "Are you interested in us two doing something big?"

"Uh?"

"What's the big deal?" Brother Chuan Xiao asked.

"There is a project to detect gravitational waves." Xu Mang said seriously, "You should have heard of it, right?"

Brother Chuanxiao nodded: "This project seems to be a collaboration between several universities and some research institutes. Uh... It seems that Fuda University is without you."

"Yes!"

"I can't get enough of it." Xu Mang shrugged. "I built a gravitational wave detection laboratory myself, and it will be ready for use in April. Are you interested in participating?"

Brother Chuanxiao thought for a while, and was quite moved by Xu Mang's request, but...how about the work here?

"But yes."

"But what to do here?" Brother Chuan Xiao said, "I want to support my family."

"Give me the salary!" Xu Mang laughed and said, "Twice as much here!"

Under Xu Mang's constant bewitching, Brother Chuan Xiao finally agreed with an excited heart.

Then,

The two discussed how to carry out the work, but the work soon reached a deadlock, because Xu Mang himself did not know what type of detector the equipment introduced by the old man was.

"Xu Mang...you didn't even understand how to detect, so you got a grant and built a laboratory?" Brother Chuan Xiao looked at Xu Mang in disbelief: "Then what's the difference between us and headless flies?" , at least get some information!"

"Don't panic!"

"Let me ask now." Xu Mang called his father-in-law, and quickly figured out what the imported equipment was. It was two high-precision laser interferometers, and they would arrive tomorrow.

Hearing this result,

Brother Chuan Xiao was completely autistic, and said helplessly, "Xu Mang...do you know what instruments other people use to detect?"

"do not know..."

"I heard that the detection method of the laboratory jointly established by many universities in China is like this." Brother Chuan Xiao said: "According to the timing signal of the pulsar, because the gravitational wave passes between the earth and the pulsar, it will affect the pulsar. Timekeeping, that is to say detecting signal frequency."

what?

There is such a routine?

Xu Mang asked curiously: "Then why can't the laser interferometer work? I read a paper that the interference cancels out after the laser converges. Once a gravitational wave passes by, it will change the distance between the mirror and the half mirror, and the interference phenomenon will change. Gravitational waves can be detected."

"Do you think it's possible? Lasers are at the micron level, and gravitational waves are at the level of one trillionth of a micron. It's okay to talk about it on paper, but it's just a dream in reality." Chuan Xiaoxiong said seriously.

"What should I do?"

"I bought everything... and it's not the equipment I chose." Xu Mang said, "It's all done by my father-in-law. He has a lot of acquaintances at MIT. It's probably the idea of ​​those experts and professors."

at this time,

Brother Chuan Xiao said seriously: "Xu Mang... If you want to conduct experiments with laser interferometers, you must first prove that it is useful. It is best to use mathematical methods, although it is unlikely."

"and also."

"Uncle may have been cheated!" Brother Chuan Xiao said solemnly: "I think MIT found out that it was useless, and finally met uncle, and then sold it to him."

"I'll do the math..." Xu Mang said helplessly, "Don't tell anyone what you said!"

"..."

"Do you think you can hide it?" Chuan Xiao smiled wryly and said, "I guess everyone will know when the equipment arrives."

Xu Mang didn't believe it.

As a result, reality slapped me in the face on the third day.

......

Chapter 388 The Black Hand Behind the Incident (2/3)

this day,

Xu Mang went to the database laboratory in the computer department building of Fuda University to maintain those databases. After all, as the honorary deputy director of the Institute of Materials Science and Computer Science, he still received this salary.

It didn't take long to maintain the database, about half an hour. After finishing it, Xu Mang went directly to the physics department building. Although there were still ten days before the start of school, he had the key to the physics department building.

result,

To Xu Mang's surprise, the door of the building was actually open.

Xu Mang: 囧