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When was the seismograph invented?
The first seismographs were invented by a Chinese man, Zhang Heng, in the second century around 132 A.D (After Christ) Heng's prototype considered of a cylinder with balls attached that it detected movement beneath the earth and alerted Heng by falling off. It was decorated with Chinese Dragons, the balls exiting from the mouths of the legendary dragons and into the mouths of frogs who were facing the direction of the quake. This idea was then develouped by John Milner in 1880 who invented the first MODERN seisomete...... These archaic seismographs were succeeded by electrical seismometers in the 1850s. Luigi Palmieri was an Italian inventor who responded to the plethora of earthquakes in his country by fashioning a device based on the scientific principles associated with the barometer. Palmieri's invention worked when a tremor beneath the earth created an electrical reaction between mercury and an electric switch. The electrical impulse serve to stop the ticking of an attached clock at the exact second that the tremor took place. The device was also fashioned to determine the intensity of the earthquake, as well how long the quake lasted.
How does underground mining work?
Underground mining involves digging shafts and tunnels to access mineral deposits buried deep in the ground. Miners use specialized equipment to extract the ore, which is then brought to the surface for processing. Support systems are in place to ensure the safety of miners and to prevent collapses in the underground mine workings.
What are the different kinds of mining?
The three types of mining -strip mining,open pit mining,and shaft mining
What are the surface and subsurface methods by which coal is commonly mined?
Surface mining methods for coal include strip mining, open-pit mining, and mountaintop removal. Subsurface mining methods involve underground mining techniques such as room and pillar mining, longwall mining, and shaft mining. Each method has its own advantages and challenges in extracting coal from the earth.
What are forms of subsurface mining?
Forms of subsurface mining include drift mining, slope mining, shaft mining, and room and pillar mining. These methods involve accessing minerals or resources beneath the Earth's surface through tunnels, shafts, or other underground workings.
Which subject is necessary for mining engineer?
mining engineer
What is a seismograph who invented it and what are the functions?
A seismograph is an instrument used for recording the intensity and duration of an earthquake/tremor.This device is not only used for earthquakes but also for other seismic events. For example monitoring the vibrations produced during construction work and during blasting in the mining and quarrying industries.The seismograph was invented by John Milne who was an English seismologist and geologist.
What invention did Herbert Hoover invent?
He was a very successful mining engineer. He may have invented some new methods for handling mining difficulties. (He did not invent the Hoover vacuum.)
When did John Nixon - mining engineer - die?
John Nixon - mining engineer - died in 1899.
When was John Nixon - mining engineer - born?
John Nixon - mining engineer - was born in 1815.
When was James Newman - mining engineer - born?
James Newman - mining engineer - was born in 1880.
When did James Newman - mining engineer - die?
James Newman - mining engineer - died in 1973.
What do mining engineers engineer?
they design mining equitment
How much does a mining engineer earn?
depends on what you mine and how successful you are, but generally speaking, a mining engineer can make between 60 and 200k a year
What has the author Practical mining engineer written?
Practical mining engineer has written: 'Klondike and all about it' -- subject(s): Description and travel, Klondike gold rush, Gold mines and mining
When was dynamite invented?
Dynamite was invented by Alfred Nobel in 1867. Nobel, a Swedish chemist and engineer, developed dynamite as a safer and more stable alternative to nitroglycerin for use in construction and mining activities.
What are some engineering jobs that begin with the letter m?
mechanical engineer; mining engineer
