Hey my name is Keith Starks and I want to start talking about how LED Pendulum Metronome started from and the founder of LED Pendulum Metronome. In 1696 Etienne Louie first successfully used an adjustable pendulum in the construction of the first mechanical metronome. Also his design did not make any sound and did not include an escapement with which to keep the pendulum in motion. And I think In order to get the correct pulse with this kind of visual devices, the person that working on it needs to watch the precise moment where the pendulum is exactly vertical. Also as the left and right positions are constantly changing due to the decreasing amplitude.
Benjamin Banneker In “Benjamin Banneker” Benjamin accomplished many things in his life. Some of his accomplishments include that he built a clock using a pocket knife and wood, he predicted a solar eclipse, and he wrote his own almanac. He accomplished many other things, but these are the main three. To begin, Benjamin took apart his friend's watch to help him make the first clock in America using only a pocket knife and a piece of wood.
At the age of 22 Benjamin Banneker carved cogs and gears out of wood, creating the striking clock with only a pocket watch as an example and his own calculations he made the first in North American and worked
Initially, based on the knowledge Banneker gained, he was more than capable of constructing a clock. Due to his love for analysis and hands-on projects, he decided to build a clock. According to paragraph three of “Benjamin Banneker,” the author states, “In the 1750s he borrowed a watch from a friend. Although he had seen a watch and a sundial, he had never seen a clock before. He deconstructed the friend’s watch so that he could study its components.”
He did this with the help of a friend who had given him a clock, which he disassembled for the purpose of learning about the way it functions. With what he found out, he built a different clock, as mentioned above and earned fame. It also helped him learn more about math (Benjamin Banneker (1731-1806), n.d., p. xx) ("Mathematician and Astronomer Benjamin Banneker Was Born," n.d.)
(OI) Another great contribution of the ancient people is the Gregorian calendar. Calendars we now use today
The essay “Best Hope Lies in Privately Funded Stem Cell Research”, states the importance of stem cell research and the effects it can have on curing disease more effectively than any other method. Written by Sigrid Fry-Revere, PhD, director of bioethics studies at the Cato Institute; the author of the paper emphasizes the importance of funding programs for stem cell research on highlights the government holding out on funding due to ethical reasons. Revere claims that the government is threatening the private investing of stem cell research organizations and are trying to put a stop to production of research. This essay is targeted for people who are academic/bioethics orientated and the future of the world disease control and abolishment.
The calendar is an important thing we use to tell time. There are calendars all across the nation in school, in our homes, in our businesses, and many other places.
The Aztecs had quite some knowledge over the aspects of measuring time. The Aztecs even knew of the movements during the equinoxes, solstices, the movements of Mars, Venus, the Moon, and the constellation of the stars. They didn’t break the day into hours or minutes. The sundial was used massively in the Aztec times. As the Aztecs were quite a sophisticated and smart society they were able to realise that the earth would revolve around the sun and the shadows would move according to the time.
Although the compass was not an available resource, sundials were. Sundials originated from Egypt in 1500 B.C and since then they have been used throughout the world to keep track of the time (Sundial). For the Vikings purpose, the dial was used to depict the time of day, which could then show the direction one was sailing based on the suns location and movement throughout the sky. As the celestial navigation relied on a particular setting, as did the sundials. Without the sun shinning the dial would be unable to cast a shadow pointing to a particular time, therefore the direction could not be found.
in 1768 is the first time the machine was used , the machine can spin 128 threads at a time , Richard Arkwright was develop it , in 1767 he patented the technology, The design was based on a spinning machine partly . Arkwright installed the water frame in his cotton mill at Cromford In 1771 on the River Derwent . the result for this creating one of the first factories that was specifically built to house machinery rather than just bringing workers together,
1. Social clock is a timetable determined by a culture or social structure that specifies a proper time for certain events to occur; like marriage, having children’s, graduation, employment or social status. 2. In 1950s and 1960sin U.S.
fortunately, Pope Gregory XIII created a new calendar called the Gregorian calendar, which is used today. Julius Caesar, one of the greatest military leaders in the world, ruled around 40 BC, a time
In 1905, one summer morning, he was riding on horseback through Petts Wood when he noticed that many curtains remained drawn against sunlight. He thought that it was waste of sunlight, so he started to devise a way to enjoy more sunlight during summer and finally had an idea of moving clocks an hour forward. By 1907, he had published a pamphlet, “Waste of Daylight”, which advocated that time be advanced by four twenty-minute increments in April and reversed in
Peter Heinlein, born in Nuremberg, Germany in 1485 is the father of the modern clock, Also Heinlein is the inventor of the entire clock making industry. There is not known about Peter’s early life, we know that he became apprentice as a repair man and locksmith in 1504. Later Peter became the most famous locksmith he is particularly praised for “his ability to create small spring-powered brass clock which were then very rare and expensive” (historyofwatch.com). The first clock was made in 1510, and by 1541 he was known for his craft and has built not only small clocks but also big tower clock at Lichtenau castle. Peter is considered the inventor of the watch, because he was one of the first craftsmen to make small ornamental Taschenuhren this is a portable clock which were often worn as pendants or attached to clothing.
