Herschede clock dating

"Telechron" is derived from the Greek words tele, meaning "far off," and chronos, "time," thus referring to the transmission of time over long distances. company that manufactured electric clocks between 19.Founded by Henry Ellis Warren, Telechron introduced the synchronous electric clock, which keeps time by the oscillations of the alternating current electricity that powers it from the electric power grid.Telechron had its heyday between 19, when it sold millions of electric clocks to American consumers.Henry Warren established the company in 1912 in Ashland, Massachusetts.Initially, it was called "The Warren Clock Company," producing battery-powered clocks.These proved unreliable, however, since batteries weakened quickly, which resulted in inaccurate time-keeping.Warren saw electric motors as the solution to this problem.

A synchronous motor spins at the same rate as the cycle of the alternating current driving it.Synchronous electric clocks had been available previously, but had to be started manually.In later years, Telechron would advertise its clocks as "bringing true time," because power plants kept the frequency of the alternating current perfectly constant at 60 Hz.But such constancy did not yet exist when Warren first experimented with his synchronous motors.Irregularities in the frequency of the alternating current led not only to inaccurate time-keeping but, more seriously, to incompatible power-grids in the U.S., as power could not readily be transferred from one grid to another.In order to overcome these problems, Warren invented a "master clock," which he installed at the Boston Edison Company in 1916.This master clock had two movements, one driven by a synchronous motor connected to the current produced by the power plant, the other driven by a traditional spring and pendulum.The pendulum was adjusted twice a day in accordance with time signals received from the Naval Observatory.As long as the hands of the electric clock, powered by a 60 Hz synchronous motor, moved along perfectly with those of the "traditional" clock, the power produced by the electric company was uniform.It is interesting to note, then, that the uniformity of alternating current in the U.

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  1. The New Zealand curve is representative for the Southern Hemisphere, the Austrian curve is representative for the Northern Hemisphere. This makes it possible to tell the age of substances that contain carbon. Dates obtained are usually written as before present ('present' is 1950).

  2. You take a deep breath and you walk through the doors It's the morning of your very first day You say "Hi" to your friends you ain't seen in a while Try and stay out of everybody's way It's your freshman year and you're gonna be here For the next four years in this town Hoping one of those senior boys will wink at you and say, "You know I haven't seen you around before."'Cause when you're fifteen and somebody tells you they love you You're gonna believe them And when you're fifteen Feeling like there's nothing to figure out Well count to ten, take it in This is life before you know who you're gonna be Fifteen You sit in class next to a redhead named Abigail And soon enough you're best friends Laughing at the other girls who think they're so cool We'll be out of here as soon as we can And then you're on your very first date and he's got a car And you're feeling like flying And you're momma's waiting up and you think he's the one And you're dancing 'round your room when the night ends When the night ends'Cause when you're fifteen and somebody tells you they love you You're gonna believe them When you're fifteen and your first kiss Makes your head spin round but In your life you'll do things greater than dating the boy of the football team But I didn't know it at fifteen When all you wanted was to be wanted Wish you could go back and tell yourself what you know now Back then I swore I was gonna marry him someday But I realized some bigger dreams of mine And Abigail gave everything she had to a boy Who changed his mind and we both cried'Cause when you're fifteen and somebody tells you they love you You're gonna believe them And when you're fifteen, don't forget to look before you fall I've found that time can heal most anything And you just might find who you're supposed to be I didn't know who I was supposed to be at fifteen La la la la la la la La la la la la la la La la la la la la la Your very first day Take a deep breath, girl Take a deep breath as you walk through the doors.