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Are Gridiron Pendulums used in clocks. And if so what kind of clocks?
Wiki User
∙ 12y ago
Gridiron pendulums where first perfected by John Harrison in the eighteenth century. They were devised to compensate for the loss of accuracy due to expansion or contraction due to heat or cold in a clock. They where made of a number of steel and brass rods (with slightly different cooefficients of thermal expansion), working in different directions so that the pendulum would be mantained at a given length whatever the temperature, thus providing a better timekeeper. Historically the gridiron pendulum has been fitted to more expensive accurate clocks, usually longcase clocks. I am sure they have been fitted to just about any clock to improve accuracy, but those clocks with a longer pendulum lend themselves to the gridiron. Nowadays, with the development of Invar steel, which has virtually no expansion due to heat, there is little need for the gridiron. However because the gridiron can look appealing you can still see it in clocks made today, especially Vienna style wall clocks.
Wiki User
∙ 12y ago
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How is a pendulum used in the world today?
Pendulums are often used in clocks to power the gears that move the hands. However, most clocks built today often have pendulums only for show, as those types of clocks are usually inaccurate and require a lot of winding.
What tools are used to time?
There are several tools used to tell time. These tools include wristwatches, digital clocks, analog clocks, sundials, pendulums, chronometers, equation clocks, and obelisks.
What tools are used to tell time?
There are several tools used to tell time. These tools include wristwatches, digital clocks, analog clocks, sundials, pendulums, chronometers, equation clocks, and obelisks.
Where do you see Pendulums in the real world?
Pendulums are commonly seen in various applications, such as clocks and metronomes, where their regular oscillations are used to keep time. They are also used in seismology to measure the movement of the Earth during earthquakes. In addition, pendulums are utilized in amusement park rides, such as swing rides, to create a thrilling swinging motion.
What uses pendulums?
Primarily they are for time keeping, mechanical clocks and watches all use a type of pendulum.Also:The machines that measure earthquakes used to before sensitive computer boards
Why do clocks tick?
In spring wound clocks, the ticking is the sound of a ratchet alternately catching and releasing a gear that both unwinds the spring and causes the hands to move.Hope this helps.
Are pendulums and the spirits they invoke evil?
no pendulums are not used for evil or tp provoke evil spirits pendulums are fastinating but are used for questions or any other way you can think of .
How is a clock defined?
A clock is any machine used for measuring and indicating time. Clocks are stationary machines which cannot be carried or worn like watches. Clocks typically consist of escapement wheels, a circular numbered dial with hands, and sometimes may also consist of bells, alarms, and pendulums providing synchronous movement.
Where was the clock invented?
Invention of the ClockOne form of clock was first invented in Egypt. They used the water clock to tell time as they had no electricity. Clocks that used falling weights or pendulums appeared in Europe during the 13th century. Earlier civilizations used sundials to tell time during the day.
What kind of precision instrument is quartz found in?
Quartz is used in timepieces such as watches or clocks.
Where can one sell a gridiron?
One can sell a gridiron online on websites, such as eBay, Amazon and Craigslist. Gridiron is a type of grill that is used for cooking meat or vegetables over fire.
Is it pendulums used in building constructions to reduce earthquake ratings?
yes
