Search results for keyword: historic
wind shaker
Wind-Powered Shaking Bed
Wind-powered shaking beds are a relatively new technology that is being used to help people get a better night’s sleep. These devices use a special type of fan in order to create air currents which move the bed in a rocking motion, similar to a hammock. The bed’s rocking......
1086 
Avery
Surface Mining Realm
Open-pit mining, also known as open-cast mining, surface mining, and strip mining, involves the removal of surface layers of soil and rock in order to reach mineral deposits located below. The mining process often involves blasting large amounts of material and then extracting the ore by digging a......
sorting
The Seven Wonders of the Ancient World
The Seven Wonders of the Ancient World were a collection of remarkable constructions listed by various Greek authors, including Antipater of Sidon and Philo of Byzantium. The classic list featured seven wonders located in the Eastern Mediterranean: the Great......
Bearing capacity of foundation
Introduction
Ground bearing capacity is an important parameter that is used to determine the suitability of ground for supporting different kinds of loads. It refers to the maximum bearing pressure of a certain soil type within certain settlement criterion which a collected structure or foundatio......
rod mill
Tamarind is not just any ordinary spice. It can be used in a variety of culinary dishes, and is a popular ingredient in many Asian and Latin American cuisines. It is a healthy, delicious and versatile spice that can be used in many creative ways.
Tamarind is derived from its native tree, the Tama......
6-s shaker
Rock-A-Bye Baby: The Origin, History, and Benefits of Swinging Cribs
For countless generations, rocking a baby has been an important part of the parenting experience. Whether it be with a gentle sway of the arms, or a more vigorous rhythmic rocking - the gentle motion can soothe and calm a fussy ......
Composite iron ore
Composite Iron Ore
Iron ore has been a staple for human societies since the dawn of civilization. historically, iron ore was used to produce tools, weapons, and armor, as well as to construct buildings and other structures. In recent centuries, however, iron ore has seen a resurgence in popularit......
Wieliczka Salt Mine
The Salar de Uyuni, also known as the Salar de Tunupa, is an immense salt flat located in southwestern Bolivia, near the crest of the Andes Mountains. The area spans more than 10,000 square kilometers (4,000 sq mi) and is thought to be the worlds largest salt flat. The Salar de Uyuni is home to th......
Rammelsberg mine
Ramelsberg Mining
The Ramelsberg mining area has a long and varied history, with mining of copper, silver, and gold stretching back more than 800 years. Mining in the area ensued first with surface mining, followed by open-pit mining, and finally, underground mining. This makes the Ramelsberg min......
China National Mine Park
Chinas National Mining Park
Located in Qi Dashan, Henan Province, Chinas National Mining Park is a former open-pit coal mine that is now a big eco-tourism tourist destination. Featuring an unparalleled mineral wealth, the park has now been reinvented as an eco park that is a paradise for nature l......
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