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historians believe there was a pendulum inside and when an earthquake hit, the pendulum swung causing it to hit a lever which would cause a dragon facing the direction of the quake to drop its copper ball into the mouth of a toad below
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∙ 12y ago
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Who invented the earliest tool for measuring earthquakes?
A Chinese scientist named Chang Heng invented a machine called Dragon Jar that was used to measure earthquakes.
What instrument is used to detect vibrations in an earthquake?
Seismometers. For information on how seismometers are used, please see the related question.
An instrument used to detect and record earthquakes?
seismic waves
How does the seismograph works?
it measures and records the elastic ground vibration called seismic waves that are generates by earthquakes and man made explosions
Why do some people not feel an earthquake but a seismograph does?
because the seismograph is a machine or Thing that can feel and sometimes see and earthquake while humans cant because we dont have super hearing lik a seismograph does.
Why did Chang heng invent the seismograph?
it was important for the emperor to know when and where an earthquake hit
Who invented the siesmogram?
John Milne invented the first modern seismograph, but the first ones were invented by Chang Heng around 132 AD.
Did the Chinese invent the seismograph?
Chang Heng, a Chinese scientist, invented the first seismoscope around 132 AD called the dragon jar
When was Hsieh Chang-heng born?
Hsieh Chang-heng was born in 1962.
What did the mathematician Zhang Heng do?
Zhang Heng invented the first seismograph and also remade the calender so that the seasons were aligned.
When was Chang heng born?
78 A.d
Who was the first person to invent a seismograph?
The chinese inventor Zhang Heng. Pernounced: Jun Hun
When did the ancient China change?
when zhang heng who seismograph invented it now people now when a earthquakes
Who invented the seismograph?
The first "modern" seismograph was invented by John Milne in 1880. However, Zhang Heng, a Chinese astronomer is also believed to have invented the seismograph; probably the primitive ones.
Who invented the seismorgraph?
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.
What was zhang Heng role in the advances made during the Han Dynasty?
the role of Zhang Heng in advances are that he made the seismograph, was a respected astronomer, mathematician, engineer and painter during the Eastern Han rates
Who made the first seismograph?
A person named Zhang Heng is known to be the first to make a prototype of it. He came from China back in 132 AD.
