Chapter 243: Measuring tools

On the day the Li's Armory was established. Shangwen immediately issued the tender.

The bidding document stipulates several standard weapons.

The specific requirement is that the rifle has two calibers fixed at point five and point six. The gun is reliable in use and simple in maintenance. Parts can be used interchangeably. Various bullets can be fired, and the effective distance of shooting is specified, with a minimum of 50 steps.

The main reason why the shooting distance is so close is that at this time, the rifled gun can barely be produced, but the cost is relatively expensive. Therefore, it was basically not considered.

Two types of muskets are required, one is for infantry. The other is a short-barreled musket used by the cavalry. Wang Jian called it a carbine, so this gun had a fixed name before it was finalized.

According to the bidding requirements, those with good quality and low price will be given priority. The number is one million. delivery time.

The artillery specifications are ten times the four-inch caliber horse artillery, and twelve times the five-inch caliber infantry gun. The types of shells can be produced in accordance with the above standards.

For the gun mounts, it is particularly required to use iron gun mounts, especially horse guns, which must be iron gun mounts. Infantry guns can temporarily use wood, but the overall weight must be light. specific contents. Refer to the current equipment requirements of the Qin Army.

The bidding documents were quickly distributed to five manufacturers. These five companies have to compete fiercely to get the final order. These orders will greatly ensure that weapons and equipment are in place in the fastest time.

As for how to do it later, Shangwen has no time to think about it. Shangwen still has an important job, which is to make a large number of surveying and mapping tools. This time the battle was all carried out in unfamiliar areas, and the map became extremely important.

However, the maps currently used by Qin and even the entire China are very substandard. Apart from the latitude and longitude lines, there is no scale. Direction indicators. and many more. None of these, so to speak, these maps. It's terrible. If the army can barely use it, then it will be a disaster for the navy and air force.

If the Navy wants to go out of the lake to the ocean, the development of surveying and mapping technology has become very urgent. How to use the compass. Shangwen needs to compile a special booklet to introduce. Shangwen is planning and writing, and there are still some tools that must be made.

These tools include. Tablet, theodolite, level. As for the measurement method, a lot of mathematical knowledge is required, Shang Wen thinks, talents in this area will appear soon. Because Qin’s artillery developed rapidly, a particularly simple ruler was the use of triangulation mapping technology. Calculate the distance. Such a short answer calculation. Sooner or later, a large number of math enthusiasts will accumulate. These are the foundations of the development of mathematics, and only application will have subject independence.

On the basis of the above instruments, Shangwen began to incorporate telescope technology. But the current mapping technology has a fatal flaw, especially sea navigation. That is the clock. Some measuring instruments need time to be used as a ruler, especially for navigation. In the era of great navigation, in order to ensure the safety and reliability of navigation, many countries have successively studied methods of determining the latitude and longitude at sea to determine the position of ships. The determination of longitude and latitude, especially the method of longitude, was not satisfactorily resolved until the invention of the clock in the 18th century.

But now, the problem of time is still not prominent, mainly because industrial civilization has just started. Just keep going. The clock will be resolved sooner or later.

The flat panel meter is a traditional instrument for measuring the fragments in the field. It can measure the plane position of the ground point and the height difference between the points at the same time. When measuring with a flat-panel meter, the horizontal angle is determined by a graphic method, and the horizontal distance of a straight line can be measured directly or measured by sight distance. In addition, when necessary, a supplementary measuring station can be added with a flat panel meter to make up for the lack of the number of root points determined by the analytical method. Because the flat-panel measurement has the characteristic of graphically determining the plane position of the ground point, it is also called graphical measurement.

The flat panel meter is divided into a large flat panel meter and a small flat panel meter.

The large flat panel instrument is the main instrument for the measurement of the flat panel meter. It consists of a flat panel, an alidometer, a base, and accessories such as a frame compass, a counterpoint and an independent level. The small flat panel meter is mainly used for surveying and mapping parts. It consists of a small flat plate, an obliquity collimator, a base, a box compass, a counterpoint, and an independent level. It can be used alone, but it is usually used with theodolite and only used for aiming and drawing the direction line. Need to be equipped with a benchmark, a target, a measuring tape or a steel ruler, etc.

These instruments have a variety of uses. If they are introduced to the soldiers of the Qin Army, I am afraid that it will take a long time. Even if they are willing to listen, Shangwen does not have time to talk about them. All these are distributed in the new style of pamphlets. Go down.

Theodolite, an instrument for measuring horizontal and vertical angles. It is designed according to the principle of angle measurement. The main components are telescope brake screw, telescope, telescope micro-motion screw, horizontal brake, horizontal micro-motion screw, foot screw, optical sight, objective lens focusing, eyepiece focusing, dial reading microscope focusing, vertical plate index Tube level micro-screw, optical plummet, base circular level, instrument base, vertical dial, vertical dial illumination mirror, sight tube level, horizontal dial position change handwheel, etc.

Just from the number of these instruments and the manufacturing process, we can see the degree of precision. But now these things can't be used even if they are there, because it takes at least two years to complete a map of a large area. Now the war is in sight, this is an impossible thing. But its significance lies in the long-term, not the present.

With a precise map, the artillery will fire more accurately and navigation will develop on a large scale. The aviation field will see rapid progress.

Finish it all. Shangwen needs a lot of drafts to be printed. Compile some booklets. These brochures are textbooks for surveying and mapping.

While Shangwen was printing textbooks, an unexpected thing happened.

There were extremely serious fighting incidents in the three newly established military academies. The reason is the military competition system advocated by Shangwen. In order to maintain vitality, competition between services is the most effective way. But it is also the most overkill. Because, for the sake of some fights, the services inevitably dismantle each other. Or overlapping competition, leading to waste.

The reason for this fight was only for military uniforms.

The heavenly army was led by Shang Wen. Under Shangwen's leadership, the heavenly army will inevitably be a little arrogant. First of all, the heavenly army has its own military band. Then there is his own uniform. The newly independent navy also wore the traditional Qin army costumes raised by the stepmother, and the independent army also wore the same. Thus. After parachuting a few times, the Celestial Army began to feel that they were extraordinary, and the straight military uniforms felt superior in front of their companions.

The army is the big brother, of course not convinced, and took the newly formed navy together to beat the heavenly army. The Celestial Army is the favorite of the heavens, so the number is small, and the number of land fights is not at all dominant, even though they were all from the ground troops of the Qin Army. The fights are unambiguous.