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Chapter 875 Scientific Weights and Measures

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    "You put the gun-making aside for now and go all out to make me a cannon." Zhao Hao glared at Zhao Shizhen again and said, "Even if it's a bronze cannon, I want the best!"

    "Don't worry, uncle, this thing is much easier than making a gun." Zhao Shizhen patted his chest and said: "Whether it's the cannon of the Fo Langji or the two cannons that my uncle gave me, it's not difficult to build. These days I  Get ready, and we¡¯ll fire off the prototype cannon after the New Year!¡±

    "Yeah." Zhao Hao said with a slightly brighter expression: "I will go to the Ordnance Bureau again during the Chinese New Year and bring back some cannon-making masters for you."

    "Okay!" Zhao Shizhen naturally smiled broadly.

    ??~~

    Zhao Hao spent the whole morning transferring several research institutes.  What he saw was pretty much the same, and he was still far from conquering the topic he gave him, and he couldn't come up with anything that made his eyes shine just yet.

    How do you say that?  The future is bright, but the road is tortuous

    He was not surprised by this.  If just putting forward a concept can become a reality in a blink of an eye, then he might as well stay in seclusion on Xishan Island for decades, save a pair of airplanes and tanks, and then directly sweep across the world and become the king, wouldn't it be a pleasure?

    ¡°It¡¯s a pity that it¡¯s all a daydream.  No invention is rootless. The more time-traveling a new gadget is, the more it requires the accumulation of industrial foundation and scientific research to avoid any fraud.

    But there was one thing he had to do now.

    After having lunch at the center, Zhao Hao asked Zhang Jian to summon all formal researchers and hold a less formal but historically significant meeting in the industrial history of the Ming Dynasty in the conference room of the center.

    As the director of the research center, he announced that from now on, the center will officially adopt a new set of standards for weights and measures!

    The researchers, especially the old ones, looked at each other in confusion after hearing this. They couldn¡¯t understand why the young director was so crazy. Why did he have to change the unit of measurement that had been used for thousands of years without any problem?

    "First of all, we are not trying to abolish the current weights and measures, and we are not qualified to do so." Zhao Hao picked up the teacup and took a slow sip of Biluochun.

    "Hahaha" The old gentlemen laughed when they heard this, and their resistance was greatly reduced.

    "This set of weights and measures passed down by our ancestors is simple, practical and easy to understand. It is naturally excellent, but for us scientific people, it is not enough." Mr. Zhao is used to dealing with scientific researchers.  That is, don¡¯t challenge their common sense easily.

    "Emperor Taizu of this dynasty strictly formulated the standards of weights and measures, but 200 years after the founding of the People's Republic of China, the scales have become very confusing. For example, a dou, official and private Dou are different. The size of the iron dou used as a standard in each county also varies.  . A bucket of Kunshan is only 95% that of Taicang, but one point larger than Chongming. When we do scientific research, we must not be vague at all. The difference is a thousand miles, so it must be determined accurately. "

    "Furthermore, our weights and measures should be easy to calculate. For example, one pound is equal to sixteen taels; one mile is equal to one hundred and fifty feet and one foot and five inches; and the ruler is divided into a construction ruler, a tailoring ruler, and a floor measuring ruler.  , the dimensions are slightly different. There are also volume units, stones for grain, and materials for ships This is no inconvenience in daily life, but it is a nightmare when it comes to scientific calculations."

    "The three are also to protect our scientific research results." Zhao Hao said lightly: "A set of unique measurement standards has its own confidentiality function."

    "I understand." The researchers were convinced.

    Of course, even if they are dissatisfied, it will be of no use.  Because on Xishan Island, Mr. Zhao¡¯s words are law.

    Several disciples carried a table with various measuring instruments placed on it.

    Zhao Hao first patted the clock on the table and said: "Let's talk about the simplest first, the unit of time. There are twelve hours in a day, and the minute hand of the clock rotates for exactly half an hour. I stipulate that one hour is one hour.  Time, use half an hour as one hour. Set one hour as sixty minutes, and set each minute as sixty seconds. In the future, all records of the center must be accurate to the second."

    "Yeah." The researchers nodded one after another. This is indeed very convenient, and it is much more accurate than taking one breath for an instant or a cup of tea for a meal.

    He glanced at Zhang Jian again and said in a deep voice: "The best Western clock at present has an error of two to three minutes a day. Your 04 Institute must step up its efforts to thoroughly understand the watchmaking technology and strive to reduce the error as soon as possible. In addition, you must compare it with your Junior Brother Bei's  Keep records of astronomical phenomena and adjust the watch every day."

    Qin Tianjian records the sun, moon, stars, and the times of sunrise and sunset every day. Naturally, he remembers them extremely accurately, which can be used as a reference system.

    "Yes, Master." Zhang Jian nodded. He had put a lot of energy into making measuring instruments in the past few months.

    "I stipulate that the angle of turning the minute hand in one circle is a circle divided into 360 degrees." Zhao Hao picked up another protractor.He said: "Because it is easily divisible, many special angles are integers. For example, the circumferential angle is 180 degrees, the right angle is 90 degrees, and each angle of an equilateral triangle is 60 degrees In addition, one degree is equal to 60 minutes.  , one minute equals 60 seconds."

    "Let's talk about the unit of length." Zhao Hao picked up a brass ruler and said: "I stipulate that one-fifth of a mile is one meter, and the center meter is based on the length of this ruler.  It¡¯s called rice for short.¡±

    In fact, he originally planned not to be called "Mi", but a mysterious force from the east stopped him.  I always feel that this will be convenient for some distinguished people

    "It is also stipulated that one thousand meters is one kilometer." Mr. Zhao shook his head, got rid of the strange thoughts, and continued: "One-tenth of a meter is one decimeter, and one-tenth of one decimeter is  , is one centimeter; one-tenth of a centimeter is one millimeter, and the millimeter is the smallest unit on this ruler, but it is far from the smallest unit."

    As he spoke, he picked up a vernier caliper and said: "It can be accurate to one tenth of a millimeter, which can be called silk meter. I hope everyone can use this unit as soon as possible."

    There was a burst of laughter in the conference room, they didn¡¯t even use millimeters.

    "The unit of area can be derived from this. I stipulate that a square with a side length of one kilometer has an area of ??one square kilometer; a square with a side length of one meter has an area of ??one square kilometer"

    "And derive the unit of volume. A cube with an edge length of one meter has a volume of one cubic meter"

    "Then there is the temperature unit." Zhao Hao said, carefully picking up a long glass column and saying: "I stipulate that the boiling temperature of water on Xishan Island is one hundred degrees. The temperature of the ice-water mixture is zero degrees. So  This glass tube containing mercury is a thermometer. Mark the two temperatures on the glass column and divide them into 100 equal parts. Each equal part is 1 degree In order to distinguish it from the angle, we can call it  for¡­¡­"

    "Zhao Shidu." Zhang Jian answered softly.

    "Whatever." Mr. Zhao gave a fake smile, causing everyone to laugh.

    "So the current temperature is" Zhao Hao looked at the scale on the thermometer and said, "4 degrees."

    "Wow, this is good" Many craftsmen couldn't help but said excitedly: "Now you can know the temperature of the furnace."

    "This is currently not possible." Mr. Zhao couldn't help but smile bitterly: "The boiling point of mercury is only over 300 degrees, and this thermometer can only reach 200 degrees. I hope that we can satisfy everyone's wish in the future."

    "The last is the weight unit. I stipulate that on Xishan Island, at today's temperature, 1 cubic decimeter of pure water weighs 1 kilogram." 1 cubic meter of pure water weighs one ton.  One cubic centimeter of pure water weighs one gram"

    "That's all for now." He weighed the one kilogram of pure silver weight in his hand and said:

    ¡°All units of measurement are effective from now on, and all data in the center must be converted into units before the end of the year. From next year, all written texts must be presented in scientific measurement units!¡±

    "Yes!" everyone responded in unison.

    ps. The use of the current weights and measures is the result of everyone¡¯s previous vote (Remember the website address: www.hlnovel.com
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