The development of electricity and the emergence of electric lights have changed the way of life of many people.

First of all, the time when Chang'an closes the door at night, that is, the curfew, is extended to midnight, so that for some gentlemen, they begin to live a life of day and night.

Naturally, some places have extended their service hours, such as restaurants, brothels, gambling establishments, and even various shops, and similarly, the people who work in them have also extended their working hours.

There are also some factories that have started to work in two shifts, one day shift and one night shift, but it has not yet reached the point of three shifts, but this kind of thing is also very fast, as long as the production task requires, there will be three shifts of factories and mines immediately.

And now the only day and night, that is only the train on the railway, they, basically no stop time, has been running on the railway, although more than 200 miles, less than 300 miles of road, is not very long, but there are still a lot of goods need to be transported by the railway, coupled with the transportation of materials to build the railway, passenger services, so that this railway is quite busy, who let this railway is near Chang'an City.

Under such conditions, that is, there is a strong need for timekeeping tools, why, that is, such a non-stop work day and night, during the day, when there is a sun, and, at night, on a fixed date, you can see that God knows the time, but on a cloudy day, or some nights without moonlight, then it takes a professional to be able to understand the time, and even if you understand, it is not too accurate.

This problem, for Yang Heng, should have been solved a long time ago. It's the other time-traveling seniors. In the words of crossing for such a long time. The watches, clocks, pocket watches, I don't know how much I can sell, even the money I don't know how much I earn, but this, Yang Heng will give up almost every time he prepares to make it. Anyway, this is really not a thing to focus on, well, then this is solved, since it is urgently needed, your thing will definitely sell at a good price, and it will be sold in large quantities.

As a watchmaker, in the past life, it was still necessary for Europe to keep time, and even draw nautical charts when sailing in the ocean. Finding the fairway is the only way to need a precise timing tool, and now. For the needs of work, it is necessary to have a timekeeping tool that is not very accurate, but for some stargazers, there is still a need for accurate timekeeping tools.

"Yang Ming, Yang Qiang, you two, make an advertising design, advertise in some places, and say that I want to solicit suggestions extensively, and what kind of timing tool I want to make." "Yes, Aaron." The two went out together.

"Ah Ming, you say, our Ah Lang is Jiang Lang's end, how could he let us send an advertisement to ask for advice?" If Yang Heng heard Yang Qiang's question, he would cry and laugh, what Jiang Lang is exhausted, this is a simple thing, however, Yang Heng needs to let some people think well, and he can't rely on himself for everything, and the things in his mind may really be exhausted, and then, perhaps, there will be some things that he doesn't know how to make, so it's a serious thing to let people think about it in advance, isn't it, and it starts with this little thing, this clock, in Yang Heng's eyes, Nature is the simplest thing, but in the eyes of people, it is a very complicated thing, and how difficult it is to keep time.

"Ah Qiang, how can you have this idea, you don't see it, after Ah Lang heard the news, he didn't take it seriously, that proves that in fact, he has a draft, he just doesn't want to take it out directly, you see, how many things, Ah Lang directly drew the drawings, or said his ideas, made by people, and some even did it himself, can you have so many ideas, no, the two of us can't even think of a single thing, okay, don't say more, it's just that Ah Lang really can't, That's not that he Jiang Lang is exhausted, but we are incompetent, let's advertise quickly, look, Ah Lang gives a lot of bonuses, really practical ideas of one hundred taels of silver, ideas of dipping edges, fifty taels of silver, ideas of parts, ten taels of silver, or even a hint, there will be one or two silver. ”

Yes, Yang Heng just wants to use a high reward to make people use their brains.

"You say, that kid, what are you going to do this time, you even publicly offer a reward for ideas." Naturally, the news soon reached Li Er's ears, because now, even in Chang'an City, there are often people who go to Yang Heng's Mansion to express their thoughts and get bonuses, but not much, most of them are one or two silver.

"This, Your Majesty, the minister said it badly, but, according to the minister's subordinates, his two scribes said such a paragraph," So, he told Yang Qiang and Yang Ming's conversation, this, when, Li Er's secret agent entered Yang Heng's side again, but, fortunately, they could only hear these people's words, and Yang Heng's side, they still couldn't get close.

"Oh, when did you put the personnel with that kid again?" "Hey, Your Majesty, this, not by his side, it's just that these two boys are avoiding what the horse said, and it's a little far away from the horse, this is already the minister's greatest ability, and now the power around the horse is very strong, and it's difficult to get close to him."

"What, the reward of fifty miles has come out, what kind of idea is it?" Just when Li Er was talking, there was really a high bonus, what kind of idea was it?

It was an idea from a train driver. "Owner, I don't think the dial of this timing tool is the same as the pressure gauge, so that a pointer keeps rotating on such a dial, a large scale is an hour, a small scale can be a quarter of an hour, and even this timing tool can be processed with some copper gears."

This is an idea that comes from a feeling, which is extended through the plate of the pressure gauge, naturally, the first prize is impossible, then it is the second prize, and Yang Heng has hyped it up, and even the bonus issued under the public, five big ingots with white flowers, just let people take it away, which really makes many people blush.

After this inspiration, someone soon gave a three-pointer statement, this, is a bonus of ten taels, and others, are inconsequential statements, however, Yang Heng will not let them come in vain, then naturally give them one or two encouragement awards, naturally, not all people have encouragement awards, for some purely to cheat the bonus, that is to directly blast people out, and some bull heads do not think about the horse's mouth, they really use their brains, Yang Heng does not spare the bonus of one or two.

And several of Yang Heng's coppersmiths, and even the gold and silver craftsmen, did not come to accept the award, but made clocks and watches according to these things announced by Yang Heng, and they wanted to surprise Yang Heng.

"You say, what about this power, the combination of the gears, and these three pointers have been made, but there is no power to make them turn, and they can't be pushed by manpower all the time, right?"

"Well, I have an idea, you see, if you lengthen this shaft and turn a lot of rope on it, just like the winch made by Alang, and then attach a heavy object to one section of the rope, so that when the weight falls, it will not drive the gears to rotate.

Well, they have entered the normal line of thinking, and even the most primitive working principle of the weight falling and driving the rotation has been designed.

A few of them are not to get any bonuses, but purely to help Yang Heng, because all along, Yang Heng has given them a lot of treatment, and they, in addition to designing the appearance of some jewelry, that is, to process some things drawn by Yang Heng for Yang Heng, they really feel ashamed, they can't help Yang Heng much, they just play the role of a manual worker, this job, it can be said that as long as some apprentices who know how to process gold and silver, they can do it.

Therefore, they decided that they must make this timekeeping tool to really help Yang Heng. (To be continued......)