"Later, when he got a job, he devoted himself entirely to scientific research and had no time to fall in love. He didn't seem to be interested in having a girlfriend either."

"We were classmates for four years in college and were roommates in the same dormitory. To be honest, my impression of him... I remember that year, when Teacher Wang first came to Xihai University and offered an elective course, Ding Zhiqiang asked us not to take it.

Choose his class, and then he chose it himself..."

"I still remember it vividly!"

"He did whatever it took to study with Teacher Wang... Of course, I'm not jealous or anything, I just think it's interesting."

This chapter is not over yet, please click on the next page to continue reading! The scandal about Ding Zhiqiang’s college education was revealed and confirmed by many alumni of Xihai University. Some people even found the post and forwarded the screenshot to Weibo.

, causing a large number of onlookers.

Netizens just laughed when they saw it. Many people were actually very interested in Ding Zhiqiang being single.

Some media interviewed Ding Zhiqiang's parents. On the one hand, they were worried about Ding Zhiqiang's safety. On the other hand, they sincerely expressed the hope that Ding Zhiqiang would quickly find a wife to marry and have children after returning to Earth.

After this news came out, many women left messages saying that they wanted to have a relationship with Ding Zhiqiang that would lead to the birth of a baby. Several girls even went to Ding Zhiqiang's parents and recommended themselves to be their daughters-in-law.

Ding Zhiqiang's parents were immediately confused and quickly took down the girls' information and phone numbers.

…

The launch of the spacecraft is not the end, and the first media will continue to report it.

The first is the quickly completed satellite release mission.

The first media reported the news that the SpaceX spacecraft successfully released a satellite from a distance of 36,000 kilometers in space. It also spent twenty minutes reporting on the launch of the large satellite.

Among them, there are two satellites that are highlighted. One is a large meteorological satellite. After successful operation, it will be possible to observe meteorological activities in more detail and accurately monitor meteorological changes in eastern Asia, Southeast Asia and the western Pacific coast.

The other is a 76-ton communication satellite, which was manufactured by a domestic communication company and mainly provides satellite communication services.

"This giant satellite has very high performance. It can emit penetrating electromagnetic wave signals and make satellite communication transmission smoother."

"If more giant satellites can be deployed, satellite communications can become very fast and smooth, and more information can be transmitted, and even satellite communications can be used to access network services."

Satellite communications are the future development direction.

Satellite communication technology has many advantages. For example, it will not be affected by regional interference, ground facilities, or restrictions on the number of visitors. Even in sparsely populated areas, satellite communication can still be very smooth.

Of course, the shortcomings of satellite communication are also obvious, mainly reflected in three points. The first is high cost, the second is serious attenuation of signal transmission, and the third is relatively high delay.

There is no solution to the third point of delay, which involves the speed of light and the analysis time of the computer.

The round-trip transmission time between geosynchronous orbit satellites and the ground is more than 200 milliseconds. In a star network system based on a central station, voice communication between small stations must go through a double-hop link, so the transmission time delay will reach

500 milliseconds, the conversation process will feel unsmooth.

The previous two points have the same solution - large satellites.

The performance of large satellites with dozens or hundreds of tons will be greatly improved. A large communication satellite with a hundred tons can even exceed the combined efficiency of hundreds of ordinary communication satellites.

This is because the weight issue must be considered in the manufacturing process of ordinary satellites, and the equipment will be compressed and re-compressed, which directly affects performance issues.

In fact, it is like the difference between a thin and light laptop and a large server. The former also pursues performance, but thinness and lightness are more important than performance, while the latter completely pursues performance.

In addition, the cost of launching large satellites has actually been reduced.

Satellite launch costs are calculated on an average per kilogram. The satellite launch service provided by the spacecraft is to directly move the satellite out of the capsule after flying to a certain altitude, so it prefers to carry a single heavier satellite.

If it is a large satellite exceeding 50 tons, the average cost per kilogram can even be lower than 15,000 yuan.

In other words, the launch cost of large satellites has actually been reduced. Considering the performance per kilogram and the launch cost per kilogram, the cost of manufacturing large satellites can be greatly reduced.

At the same time, large satellites can release strong electromagnetic signals, and the transmission is relatively more stable.

Of course, no matter how strong the signal is, it will be greatly attenuated when it reaches the ground, which will also affect the communication quality.

Large satellites cannot completely solve this problem.

In fact, there is already a complete solution to the problem of satellite signal attenuation - first-order electromagnetic communication.

The large satellites launched by the military transmit first-order electromagnetic waves and first-order radar signals. The penetrating power of first-order electromagnetic waves is very strong, and there will be no problem of signal attenuation when transmitted to the ground.

First-order electromagnetic wave signals only have the problem of scattered energy, that is, the conventional environmental energy will slowly decrease, but the decrease rate is very slow, and only extremely weak wave energy is scattered around.

At this stage, signal attenuation has not been clearly detected, so at least in the Earth-Moon system, it can be considered that there is no problem of signal attenuation.
Chapter completed!