"2018 GGHS Team 1"의 두 판 사이의 차이
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Three-dimensional printing is a manufacturing technique that produces three-dimensional objects by spraying a continuous layer of matter. | Three-dimensional printing is a manufacturing technique that produces three-dimensional objects by spraying a continuous layer of matter. | ||
By using this, they were able to create objects in three dimensions, not in two dimensions. | By using this, they were able to create objects in three dimensions, not in two dimensions. | ||
| + | ===Missiles=== | ||
| + | The rocket weapons, including cannon, have at present developed into missiles. A missile is a generic term for a weapon that is driven by a rocket, jet engine, etc. and is guided until the target is reached at the point of induction. A missiles don't just shoot at targets like shells and fly away.also it's got an induction device inside it After it's launched, it measures its speed and direction. Missiles have the ability to hit the target by as amended it. | ||
2018년 7월 25일 (수) 23:28 판
Introduction
A comparison of the Technology of Goryeo and Foreign Countries
Motives for doing research
Through the study of hidden technology from the Goryeo Dynasty that many people do not know about, By comparing the characteristics of the cannons and metal types of the Goryeo Dynasty with those of foreign cannons and metal types, we explained the excellence of the technology of the Goryeo Dynasty. As a student at Ganghwa Girls ' High School in Ganghwa Island, which was the capital of Goryeo, We wanted to accumulate diverse knowledge about the Goryeo Dynasty. As of 2018, the research was conducted to mark the 1100th anniversary of the founding of the Goryeo.
Background knowledge
What is a cannon(Chongtong gun)?
- A type of weapon used to fire arrows from the Goryeo Dynasty.
- The chongtong gun is a cannon ball of the Joseon Dynasty. The names were divided according to the size, weight of gunpowder, the number of bullets, and the distance to which they were used, according to the order of 천자문(千子文) was separated by 천(天)·지(地)·현(玄)·황(黃)
- A cannon is a large, uncarrying weapon with a large firing range and a greater range than the gun.
Since the introduction of artillery in Europe in the middle of the 14th century, main steel shells replaced stone at the end of the 15th century, At the same time, in France, a new lighter a cannon cast in bronze was placed on a horse-drawn motorcycle carriage, which led to the emergence of field guns. The new mobile French field gun has introduced the concept of a trunnion, making it easier for guns to be placed on permanent cartwheels, allowing for relatively accurate aim and range expansion.
The origin of the invention of metal types
Middle Ages
European and Chinese cannon
The cannon of the Goryeo Dynasty
German metal movable types
The metal movable types from the Goryeo Dynasty
Modern times
Modern technology
3D Printer
Today, a three-dimensional printer(3D - printer) has been created combining traditional printing technology with the wisdom of our ancestors. Three-dimensional printing is a manufacturing technique that produces three-dimensional objects by spraying a continuous layer of matter. By using this, they were able to create objects in three dimensions, not in two dimensions.
Missiles
The rocket weapons, including cannon, have at present developed into missiles. A missile is a generic term for a weapon that is driven by a rocket, jet engine, etc. and is guided until the target is reached at the point of induction. A missiles don't just shoot at targets like shells and fly away.also it's got an induction device inside it After it's launched, it measures its speed and direction. Missiles have the ability to hit the target by as amended it.
Students
Yerim Kim
Jeonga Park
Sumin Yu
Hyoeun Kim
Yeaeun Lee
Hyewon Shin
Garam Ryu
References
- ↑ The is is the reference
- ↑ 프리미엄 조선|1000년간 가장 중요한 발명은 금속활자?|공미라(세계사 저술가)| 2014.02.21.|http://premium.chosun.com/site/data/html_dir/2014/02/20/2014022004605.html
