Black technology recorded in ancient books

1. The Heluotu, also known as the Heluotu Classic, is a famous legend about the ancient civilization of China. Six or seven thousand years ago, the dragon horse jumped out of the Yellow River and had a river map; The tortoise came out of the puddle with a letter on his back. Fuxi drew eight diagrams according to the book of He Tuluo. Since then, Dayu has managed water, Hebo presented a river map, and Fu Fei presented Luo Shu, so that Dayu finally defeated the flood. As for China's astronomical achievements in ancient times and the highly mathematical achievements seen by modern people from the Book of Hutuluo, that is the subject of experts' research. We know that the ancient gods in China are representatives of culture, so the images of Fuxi and Nu Wa often hold rules and regulations in their hands.

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Second, Woodenhead and Magpie.

The evidence is that drones first appeared in China. I'm just curious how he managed to fly and last so long. Master Lu Ban is really good. Wooden magpie is said to be a war reconnaissance tool made of bamboo and wood. "Mozi Luwen" records: "The loser cuts bamboo and wood and thinks it is a magpie. Three days later, the loser thinks he is smart. "

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Third, tulle clothing.

Mawangdui in Changsha, this gauze skirt is 128 cm long, the sleeve is 190 cm long, and the weight is only 48g, less than one or two. You can even put it in a matchbox after folding. It can be said that it is as clear as smoke and as thin as cicada wings. It is also a masterpiece of yarn weaving level in the Western Han Dynasty, and it is also the pride of Chu-Han culture. At present, such yarn weaving level has been lost.

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Fourth, Liu Ma the cow.

During the Three Kingdoms period, Zhuge Liang, the prime minister of Shu and Han Dynasties, invented transportation, which was divided into wooden cows and flowing horses. It was used by Zhuge Liang in the Northern Expedition from the 9th to 12th year of Jianxing (23 1-234). Its carrying capacity is "one-year-old grain", about 400 kilograms, and its daily journey is "dozens of treks, three miles in groups", providing food for 100 thousand troops in Shu. But the specific way and appearance are unknown now, and there are different explanations. 、

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Five, refrigerator air conditioner

In ancient times, there was a refrigerator, which was named Bing Jian. The ice guide is divided into two layers, the outer layer is filled with ice cubes, and the inner chamber can be used to ice fruits, vegetables and wine. At the same time, there are many holes in the cover of the ice guide. In this way, it can not only be used as a refrigerator, but also emit cold air through these small holes, making it an integrated refrigerator and air conditioner.

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Intransitive verb seismograph

The seismograph is a masterpiece created by Zhang Heng, a scientist of the Eastern Han Dynasty in China. During the Eastern Han Dynasty when Zhang Heng lived, earthquakes were frequent. Zhang Heng has a lot of personal experience about earthquakes. In order to master the national earthquake dynamics, after years of research, he finally invented the Hou Feng seismograph in the first year of Yangjia (AD 132), which was also the first seismograph in the world. Because Zhang Heng's seismograph has long been lost, the seismograph models we can see now are all restored by later generations according to historical books. It was not until 1880 that similar instruments were made in Europe, which was later than Zhang Heng's invention 1700 years ago.

Seven or eight cattle crossbows

The three-bow bed crossbow was also called "eight-ox crossbow" in ancient times, because it needed eight oxen to open the bow. The ancients used hardwood as the shaft and iron sheet as the wing, so it was also called "one gun, three swords and arrows". The crossbow can also launch a "stepping arrow", which is very spectacular when it is launched. Arrows, like javelins, can be nailed directly into the city wall when fired at close range. In volley, rows of arrows are firmly nailed to the wall, and siege soldiers can climb the tower. There is such a record in the Song Dynasty: "The old bed crossbow stopped shooting 700 steps, which increased Pi by a thousand steps." In the Song Dynasty, one step was 1.536 m, and a thousand steps were 1.536 m, which was one of the highest records that ancient long-range weapons could reach.

Eight, three eyes large caliber short gun

Three-eye large-caliber shotgun is a dual-purpose weapon, which can shoot the enemy from a long distance and crush the enemy in close combat. Jiajing period in Ming Dynasty was divided into two types. One of them is three tubes, and the words are not connected. Each of them has a fire door, which ignites and emits three pipes respectively. * * The other spear has a wooden handle, and the medicine rooms containing three spear halls are connected. After the three tubes were ignited, they had great power of continuous firing, which was used by both military and civilian in the late Qing Dynasty. More common are iron and copper.

Nine, fire chariots

During the Ming Dynasty in China, the army at that time also invented various multi-barrel rockets, which were not only used by individual soldiers, but also used for large flying arrows, and could be applied to different battlefield needs. More importantly, there is a "fire chariot" that launches rockets. This kind of rocket launcher with different bomb loads is installed on the trolley, which becomes a magazine that can be easily replaced. The fire chariot has a single wheel and four legs, 300 rockets and two ancient philosophers. Although the fire chariot looks simple, it is very convenient to use and transfer. When fighting, only two people can operate. Firefighting vehicles have both volley firepower similar to modern rocket launchers to deter enemies and firepower of modern vehicles. It can be said that it is a very powerful military black technology.

Ten, drum car.

In the Eastern Han Dynasty, scientist Zhang Heng invented the drum car to measure the distance. When the car rotates, the motion is transferred to an arm of Woodenhead, who walks a mile and knocks at the door. The car we are driving now uses this principle and uses the rotation of the wheels to calculate the mileage.