Search results for keyword: empire
ancient history of machinery
Ancient History of Machinery
The very first machines were created as replacements for human skills. For example, back in ancient Egypt, 4000 BC, farmers and merchants used shadufs, a manual machine created to lift water from a river and put it into a crop field. This allowed them to control the a......
1034 
Sophia
Ground balance
Two of Chinas greatest empires, the Tang and the Song, were known for their unmatched sophistication and technical advances. Many of the advances were attributed to the systems of education that were put in place in both empires. The Tang empire was the first to implement a large-scale system of e......
Deformation zone length
Never Give Up
When most people encounter failure, they tend to give up and develop a negative attitude towards their own lives. However, this is not the path that leads to success. Everyone experiences failure at some point or another in their lives and many of the most successful people are those......
Krupp law
Genseric was one of the greatest rulers of the Vandal empire who was a prince of the Vandal people and was the mastermind behind its success and eventual expanses. His is a remarkable story about an incredible journey from poverty to power.
Genseric, who was born around 370 AD, was the eldest so......
sodium salt
History of Salt
The human body needs salt to stay alive. For people throughout history, it has been an incredibly important resource. Without salt, humans would be unable to survive.
Salt was an important economic and social item for ancient people. Throughout ancient history salt was used as a ......
kyanite minerals
Lapis Lazuli is a special type of mineral that is widely appreciated for its intense hue and vibrant coloration. It is also known by many different names such as azure, ultramarine and sapphire. The name is derived from ‘lapis’ Latin for stone.
Lapis lazuli is composed of many minerals includin......
Typical mining area - Shaanxi Daxigou Iron Mine
，答案如下：
Introduction
The Da-xigou Iron Mine is located at the foot of southern Wudang Mountain in the southwestern part of Xixiang County, Shaanxi Province. It is a state-level typical mine and a State Geopark .
Background
Located in the hinterland of the Qin-Tibet Plateau, the Da-xigou Iron M......
monazite
Tomb of Loneliness: A Lonely Individual’s Stone
The Tomb of Loneliness, also known as the Lonely Individual’s Stone, is an ancient artifact found in China that is estimated to be around 5,000 years old. It is thought to have belonged to an individual who lived alone in the pre-modern era, a tim......
Gold and silver alloy
Introduction
Coins were originally crafted from silver and gold alloys, developed in the Lydian or Greek era, between 650 and 600 B.C. This is according to historians such as Herodotus, Strabo, and Plato. Over the years, ancient civilizations developed their own coin designs to reflect their vari......
musical instrument copper alloy
Brass is a popular choice of material for musical instruments due to its many desirable properties, such as its malleability and resonant character. Brass is an alloy of copper and zinc, which has been around since antiquity and has been used to create weaponry, armor, and tools. By mixing copper ......
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