There is no flat answer(no pun intended) as there are different typ[es of seismographs. Obvisoulsy the big ones are non-portable and are mounted on fixed axes so they are virtually a part of the earth"s crust of bedrock. These instruments counting auxiliary ballast and such like would weigh several tons. as they are stationary, the weights are not generally quoted. Thee are portable seismometers used for mining and prospecting and these can be as light as perhaps ten or fifteen pounds. all things being equal the big boys are more accurate. in some Seismological stations they have three Seismographs, normally on all the time on different axes- for example: North-south, East_west, and vertical (Up and down) the last application would require a Gallitzin type of Seismogaph invented in Czarist Russia in about l906.This type is made in portable forms but has to be oriented to the precise vertical or horizontal axis before use-rather like a modern 35MM Camera. Sperry made seismographs. They are better known for Gyroscopes , but they did make Sesimographs,.ratrher seismometers, these were Three-axis types and could be used on Survey Ships -for oceanographic work. The three axes (R.P.I.) were selected by small rotary switches like those on some household lamps-twist on and off.
The plural form of "modern teacher" is "modern teachers."
Moving average is best used when checking out your weight on a daily basis. Simply calculate the average on an everyday basis to find out the fittest or the fattest of you. We were also trying to find answers to this very question and fyi my name is A payam
The physical quantity of weight is Newton (N). Weight shares the same SI unit as force. ;)
Film is a modern technology that involves capturing, storing, and projecting moving images. The alphabet, on the other hand, is pre-modern and dates back to early civilizations, enabling written communication and literacy. Both film and the alphabet have had significant impacts on society and communication.
20 pound copy paper refers to the weight of the paper, with 20 pounds indicating the weight of a ream (500 sheets). It is a standard weight for general everyday printing and copying tasks. The higher the weight, the thicker and more durable the paper will be.
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The first modern seismograph was created by John Milne, a British seismologist, in the late 19th century. Milne's design allowed for the accurate recording of seismic waves and greatly advanced the study of earthquakes.
John Milne invented the seismograph in Tokyo, Japan in the late 19th century. He installed the first modern seismograph at the Imperial University of Tokyo in 1880.
Cro-Magnon were early modern humans. The weight would be the same as a modern female.
The average weight of an modern tank is about 60-65 tonnes.
The first seismograph was invented by Zhang Heng in 132. The modern seismograph was invented by John Milne, Thomas Gray, and James Alfred Ewing in 1880.
The seismograph was created by Zhang Heng, an ancient Chinese polymath, around 132 AD. His invention was able to detect and measure earthquakes, making it a groundbreaking development in the field of seismology.
A traditional seismograph typically measures earthquakes up to about magnitude 9.0 on the Richter scale. Modern digital seismographs can detect smaller earthquakes accurately as well.
The part of the seismograph that moves during an earthquake is called the pen.
A modern seismograph consists of a sensor to detect ground motion, a recording device or data logger to capture the seismic waves, and software for analyzing and interpreting the data. Some seismographs also include GPS receivers to provide precise timing and location information.
In simple terms a seismograph works with a pen attached to a heavy weight hanging near the ground. As the ground shakes the line being drawn by the pen wiggles to reveal how strong the earthquake is.
A modern seismograph typically consists of multiple sensing devices, called seismometers or accelerometers, which are strategically placed to detect ground motion caused by seismic waves. The number of sensing devices can vary depending on the configuration and sensitivity required for the specific application.