In the name of doing good deeds, converting the money he can't earn into fame is something that Jian Chen is extremely good at. www.biquge.info So honeycomb coal can be advertised to make more people live better, but if someone wants to make glass, crucible steel and other technologies, it is another rhetoric.

Soon after the end of the fair, several gentlemen from the school palace found Chen Jian again and asked about the splitting prism, Chen Jian only said that he didn't understand it, and sent a few sets to the school palace to let them play by themselves.

Some things start and they no longer need to be perfected. Jian Chen knows his positioning, that is, a medicine primer, if there is no overall level of this ethnic group as the main medicine, his own medicine primer is useless even if it is an elixir.

Now that mirrors, lead glass, beamsplitters and the like have been taken out, and there is also the previous theory of particles of all things as a philosophical basis, it is not far from the theory of particles of light, and there will always be people who put it forward.

In particular, the particle theory is the most acceptable theory for the reflection angle of light, which invisibly cheers for one's own particle theory. If you put it forward yourself, it will inevitably lack enough convincing.

The foundations of mechanics, chemistry, optics, electromagnetism, biology, and rational philosophy are basically laid out as a fertilized egg.

Although this fertilized egg is at most a small tadpole swimming in at this time, it still needs enough time to grow.

Now there is no need to come up with too many theories on your own, but to come up with something wonderful and really change the world based on reality, in order to prove that the study of these things is meaningful.

Soon after, Jian Chen also met a person he had always wanted to meet but had a good chance of seeing him, the gentleman who had come to this world for the first time to read the booklet about speculating that the orbit of the Glowing Star was elliptical. This gentleman's mathematical skills are very good, and he didn't see Jian Chen because of eye disease a few days ago, but this time it was because of the telescope.

For a person who observes astronomical star maps with the naked eye, telescopes have endless charms. It's just that the magnification of the telescope in Jian Chen's hand is too low, and this is the only one, so you can't find the vastness of the universe and the vastness of the starry sky when you look at the stars.

This gentleman is also in charge of astronomical revision of the calendar, and he is a figure in the system and has a high reputation. The new calendar, which is now in common with this gentleman, was revised by this gentleman, and he spent his whole life on the stars and mathematics, and on the basis of his predecessors, he corrected the relative distances between the planets and the sun by triangulation: the distance is not known, but the proportions can be guessed, which is the highest level of astronomy in the age of telescopes.

Chen Jian did not rush to discuss with this gentleman some mysterious connection between the planet's orbital time and radius, but thought of some things to be used for navigation in the future, so he tempted him with a telescope of higher magnification.

After looking at the stars all my life, what I want to know most is what the stars or the moon look like, especially after seeing the faint crater on the moon with that tattered low-powered telescope that night, I was even more excited.

Chen Jian said that it is not easy to make telescopes with larger magnifications, and it is necessary to ask for a sum of money in the name of Mr. in charge of astronomy, and find a few mirror grinders in the capital who are willing to do this kind of thing.

The money is not much, and Mr. himself can make the decision, and after agreeing to Chen Jian, Chen Jian will have to inch in again.

He offered to donate a sum of money to build a special observatory to house telescopes and other clocks, watches, celestial globes, and the like. However, considering that the soot near the capital was too large, and the telescope used to observe the stars was too large and inconvenient, it was hoped that the observatory would be placed in Mincheng.

To build an observatory, it doesn't cost a few dollars to build it alone, but three or five thousand silver coins are enough. But the people who look at the stars and calculate the calendar in the observatory are priceless, and they are also difficult for Chen Jian to match.

Mr. finally agreed, and by the way, he would take some disciples to Mincheng to personally supervise the construction of the observatory, and also hoped to see a telescope that could see the stars for the first time.

Chen Jian naturally has his own considerations, there must be an observatory in the age of sailing. Whether it's orientation, timing, or something else, there must be an observatory to support it.

Once Mincheng becomes the center of HNA in the future, the existence of an observatory will make this center even more valuable.

Today's simple sextant ...... Or maybe the octant has been made, and even if there is no such thing as a star-pulling board, there is no problem with measuring latitude, as long as it is still in the northern hemisphere.

But the measurement of longitude is extremely troublesome, only knowing latitude but not longitude, never knowing your exact position.

There are only two ways to determine longitude.

Either a certain observatory is defined as zero longitude, and thus divided into things and things, and there is a clock on board that ensures that the time is at the same time as the observatory's position and that the time is extremely accurate. The exact longitude can be estimated by the time of the observatory and the time of the location, and the clock is theoretically accurate enough to differ by several kilometers.

Either it relies on astronomy, by drawing the phases of the moon and the like, and publishes it once a year. Assuming that the trajectory of the moon in the sky is fixed, and the position of the stars in the sky is also fixed, then as long as you can draw a perfect enough star map and guess the orbit of the moon, you can take a nautical moon phase chart in your hand, look up at the sky and guess the chronometer time at this moment, and guess the longitude.

For now, neither approach is a long way off.

The former requires clocks that are too creative, and the problems of waves and waves, thermal expansion and contraction must be taken into account, and at the current level of clocks, a difference of five minutes a day is a master's level. Four minutes of longitude, the north and south poles are good to say, as far as the latitude of Mincheng is concerned, there is a difference of dozens of kilometers a day.

The latter requires a team to stare at the stars every day to draw a ten-year star map, and then perfect the law of gravitation plus guess the distance of the moon, and by the way, a person who is blind and can still mentally calculate calculus at the level of a math expert to write the moon's movement into a formula.

This is by no means something that can be done in one generation, it may take several generations, but it is completely possible to prepare in advance, at least to complete the star map first. This investment in basic science stems from the need for great navigation, but Jian Chen knows what he has to do, so he can prepare for this seemingly meaningless and huge investment in advance.

Without the observatory, there would be no best navigation of this era. Without astronomy, the most accurate maps of this era would not have been possible. If you don't look at the stars, you may even have a problem directing farming.

Although Zheng He, Columbus and others did not have these conditions, they still conquered the sea, but at this time and at that time. Chen Jian did not sail around the world, but turned this craze into huge benefits as soon as he sailed around the world, reducing the risk of going to sea and ensuring sufficient profits.

In addition to its own practicality, an observatory has many other uses, such as the discovery of Jupiter's moons after the advent of telescopes, and the time difference in wood eclipse caused by the satellites is a very important problem: the speed of light is finite rather than infinite.

These things cannot be done by a mouthful of nonsense, and must be studied and pointed out by professionals.

Use a cement masonry observatory and a telescope to lure a group of top calendar astronomers to help draw star charts and measure time, no matter how you look at it, you can make money.

The old and the young chatted for a long time, and finally settled down. In a few days, we can go to Mincheng to complete the foundation stone of the observatory and strive to get a telescope with a larger magnification within five years.

The old man promised that as long as Chen Jian got out the telescope and built the observatory, he could give Chen Jian an official identity equivalent to the chief bookkeeper of Qin Tianjian, which was a very prestigious quasi-technocrat status.

After sending the old gentleman away, people from the military came again and asked about Chen Jian's telescope. Jian Chen only said that this thing was thought up by his father, and it had been sent to the navy through normal channels, and this was not nonsense, and he did let his father do a few things through normal channels before coming to the capital.

As a result, the military added some telescopes to its procurement list, and at the same time, telescopes were added to the trade ban list, which was a surprise.

In addition to these important people, there are actually many people who come to find Jian Chen, especially those strange and various goods are not for sale, and they all want to cooperate with Jian Chen.

However, Chen Jian also knows that there are only a few things that can really be sold at the exhibition on a large scale to make profits, and many of them are made at a high price.

Lighters, for example, are also not practical. When the time comes, it is naturally collected from some oil seedlings, and it is also used to treat skin diseases. A glass still can be used to make a dangerous lighter with a small amount of gasoline, but it is still far from being practical.

Gasoline is easy to fry. But the current flint of kerosene is really not lit, there is no flint of magnesium alloy or rare earth alloy, and the current flint has to get the set of hammer device on the flintlock pistol to ignite the kerosene. Then it's not a lighter, it's a lighter, and ordinary people can't afford to use it, and it's not forced.

The function of the model is to make people unconscious, and by the way, to make people think that the knowledge learned in the original school palace can make so many good things, open up the wisdom of the people, and make people no longer fear nature, but on the contrary, they are in awe and even proud of their own power.

sent away waves of people with different purposes, and secretly asked those who had the opportunity to cooperate officially, left invitations for these people, and discussed making money together a few days later, and the rest of those people were dismissed after entertaining.

This time I came to the capital, and spent more than 13,000 silver coins on various goods, experimental equipment, purchased sites, and hired labor.

He has gained fame and admiration, but he has not seen a single point of money until now, and Rao is Chen Jian is now regarded as one of the top capitalists in Nan'an County, not counting those who open mines, and he still has some flesh pain-a sailing ship with a load of 300 tons that can sail long distances and two guns for merchant escorts are gone.

This is neither party property nor the funds of a trading company, but completely Chen Jian's own money.

Hu Lin didn't know how much money he spent, so he was excited to see people coming and going every day, thinking that the trading company had finally rolled out, and feasting those merchants in the capital was also the last step for the trading company to gain a foothold here.