In the twinkling of an eye, Wang Bin and Tiangong technology have passed the project application. Just one month has passed. In this month, Wang Bin and Tiangong technology have completed the design and construction of their first UAV, and have entered the formal construction.


    If there is no accident, the UAV produced by Tiangong technology will be officially tested in a week. However, since Tiangong technology does not have its own runway, even if the UAV is manufactured at that time, it must be completed in a professional flight test center.


    However, just when Wang Bin and Tiangong technology are making every effort to manufacture UAVs and contacting the flight test base to prepare for the flight test, the optical glass produced by Tianyuan optics under Tiangong technology has finally begun to show its effect after such a long immersion.


    During this period of time, Tianyuan optics has quietly made a big move, that is, Tianyuan optics has successfully manufactured an ordinary optical astronomical telescope lens with a diameter of 78.6 meters in such a short time by using its own glass mirror.


    Of course, the main lens of such a large astronomical telescope can''t have only one piece of glass. First of all, whether Tianyuan optics can produce such a large optical glass is definitely a big problem in terms of transportation. Therefore, like other related telescopes, this telescope is also composed of multiple hexagonal lenses.


    Moreover, after Tianyuan optics announced the manufacture of the main lens of an ordinary astronomical telescope with a diameter of 78.6 meters, it immediately announced that it would work with the city authorities to install the telescope on Cangshan, the peak of Cangshan, the highest mountain in the city.


    When Tianyuan optics announced this news, it immediately caused a very strong sensation in the world. You know, this is a sensation all over the world!


    After all, the manufacturing difficulty of super large ordinary telescopes is well known. Apart from others, at present, the diameter of the world''s largest ordinary astronomical telescope, plus that column of large telescopes, is only more than ten meters. However, in order to manufacture this telescope, some countries in the western continent invested nearly 200 million euros!


    Even the largest telescope currently under construction is the telescope to be completed in 2022.


    The diameter of its main lens is only 39.3 meters, but the lens diameter of the astronomical telescope produced by Tianyuan optics has reached 78.6 meters, twice that of the telescope under construction in the western continent.


    You know, before, the largest ordinary optical astronomical telescope in China had a maximum aperture of less than three meters.


    Moreover, for various reasons, it is very difficult for China to build such a super large ordinary optical astronomical telescope. The biggest difficulty is that it is stuck on the main lens of the astronomical telescope. Even if it wants to buy from abroad, it is very difficult, even basically impossible.


    However, now, Tianyuan optics was not supposed to be in the world. Even in China, it is only an insignificant optical glass manufacturer, and its scale is not large.


    However, such a small optical glass manufacturer has quietly manufactured the main lens of the world''s largest ordinary astronomical telescope.


    Perhaps in the eyes of ordinary people, such technology is nothing. After all, now the science and technology of human civilization is so developed that it is easy to make ordinary astronomical telescopes.


    But in fact, this is not the case. Even for ordinary optical telescopes, especially the main lens of large-diameter ordinary optical telescopes, the manufacturing difficulty is absolutely beyond everyone''s imagination. Otherwise, the diameter of China''s largest ordinary optical telescope will not be less than three meters.


    Of course, this is not the most important thing. The most important thing is the announcement of Tianyuan optics. It is not that they are going to make such a huge telescope main lens, but that they have made such a large main lens, which is shocking.


    You know, foreign optical glass manufacturers want to manufacture the main lens of a super large astronomical telescope. The time it takes is not a moment and a half. The time it takes also needs to be calculated in years. What about the loss of Tianyuan optics!


    Although we do not know how long this Tianyuan optics company will be used to manufacture the main lens of this telescope.


    However, if you have a certain understanding of Tianyuan optics, you will definitely know that it will not take more than a year for Tianyuan optics to manufacture the main lens of this telescope.


    Therefore, the news, like a thunderbolt in the clear sky, spread throughout the astronomical community and even the scientific community, and caused a huge shock.


    "Have you heard that our country is going to build the world''s largest astronomical telescope."


    "Isn''t the world''s largest radio telescope in China? Are we ready to rebuild again? Or are we ready to build a bigger one?"


    "No, I think you are wrong. The telescope to be built this time is not a radio telescope, but an ordinary optical telescope. It is said that the main lens of the telescope to be built this time has reached 78.6 meters, and its main lens has been manufactured.


    You should know that the maximum diameter of the main lens of the world''s largest ordinary optical telescope is only more than ten meters. Even if it is under construction, its maximum diameter is only 39.3 meters.


    In other words, the diameter of the ordinary optical telescope that our country is going to manufacture is twice that of the largest optical telescope under construction abroad. "


    "Which company made it? It''s so awesome. I remember technologies like this. It seems that foreign countries have blocked us!"


    "Yes! It is said that the company manufacturing such a large diameter main lens seems to be called Tianyuan optics. It is a purely private enterprise."


    "Yes! In fact, this is not the most shocking news. The most shocking news is that according to the official announcement of the company and its location, they actually want to complete the construction and installation of the telescope and put it into use within one year.


    In other words, if there is no accident and everything goes well, the telescope will be put into operation earlier than the world''s largest optical astronomical telescope under construction in the countries of the western continent. "


    Of course, there are praises and derogations. After all, this is the Internet age, and all kinds of people have them.


    Some people think that Tianyuan optics is simply looking for trouble and doing such a thankless thing.


    Some people also believe that Tianyuan optics and the local authorities are wasting taxpayers'' money in building such a world''s largest astronomical telescope. After all, the investment in the world''s largest astronomical telescope under construction, that is, the one with a main lens diameter of 39.3 meters, is as high as more than one billion euros.


    What about this telescope with a diameter of 78.6 meters? It is conceivable that its investment will be at least three times higher than that under construction abroad.


    Of course, what they don''t know is that the main lens manufactured by Tianyuan optics has adopted new technology and new equipment, so the price of manufacturing the main lens has been greatly reduced.


    According to calculation, the final cost of this astronomical telescope will never exceed one-third of the 39.3-meter ordinary optical telescope abroad, that is, one-third of one billion euros, about 300 million euros. If it is changed into Chinese money, it will never exceed 2.4 billion euros.