Главная страница Случайная страница КАТЕГОРИИ: АвтомобилиАстрономияБиологияГеографияДом и садДругие языкиДругоеИнформатикаИсторияКультураЛитератураЛогикаМатематикаМедицинаМеталлургияМеханикаОбразованиеОхрана трудаПедагогикаПолитикаПравоПсихологияРелигияРиторикаСоциологияСпортСтроительствоТехнологияТуризмФизикаФилософияФинансыХимияЧерчениеЭкологияЭкономикаЭлектроника |
The Start Of The Electrical Days
The Early Days
Mahlon Loomis was born July 21, 1826, in Oppenhiem New York, into the family of Professor Nathan Loomis and Waitie Loomis. He was the fourth of nine children.
Not a lot of details are available about Mahlon Loomis’ early life. This is unfortunate because it is often interesting to see how a young inventive mind grows. We do, however, know that he was surrounded by educated minds, as his father was a founder of the AMERICAN EPHEMERIS and NATIONAL ALMANAC. In addition to this, his older brother George, was an inventor and holder of several patents himself.
In 1836, Mahlon’s family moved to Springvale, Virginia. In September of 1848, Mahlon went to Cleveland, Ohio to partake in the study of dentistry. In 1850, he returned to Springvale to continue his dental work.
For several years Mahlon spent time as a traveling dentist. During this time he went to Earlville, New York, Cambridgeport Massachusetts and Philadelphia. During this practice in Massachusetts he received a patent for a mineral plate (Kaolin) process for the making of artificial teeth.
In November of 1856, Loomis and his bride of only a few months, Achsah Ashley, settled in Washington D.C. to set up a dentistry practice. The Start Of The Electrical Days
About 1860, Mahlon Loomis became interested in electricity, and his first application of this was an experiment in the forced increase of growth in plants. This was achieved by buried metal plates connected to an electrical current furnished by batteries.
In this same time period Mahlon became interested in using the electrical charges obtainable from the upper atmosphere by means of kites carrying metal wires. At first he planned to use this natural source of electricity to replace batteries on a telegraph circuit. It is noted in many references that this was something that was actually achieved on a telegraph line that was 400 miles long.
Later on, from experiments in this area, Mahlon discovered that a kite sent aloft would affect the flow of current in another kite that was some distance away from the first kite.
This set him on a path of developing it as a system of wireless telegraphy for practical long distance communications.
It Actually Works!
The year is 1868, and Mahlon Loomis demonstrates to a group of Congressmen and eminent scientists a wireless " communication" system between two sites 14 to 18 miles apart. There seems to be some discrepancy as to the distance in the various records that exist, however in the picture that was drawn by Mahlon Loomis, 14 miles is mentioned. This and many other pictures and notes are on file in the Library of Congress.
From one mountain peak he sent up a kite, the bottom of which was covered with thin copper gauze, and the kite string was copper wire. He connected this apparatus up to a galvometer that had the other end of the circuit connected to ground. Immediately the galvometer showed the passage of current!
He then set up an identical outfit on a mountain peak 18 miles away, to send. He would touch this second kites wire to ground and by this action reduced the voltage of the charged stratum and lowered the deflection in the galvometer attached to the other kite at first location we discussed.
There were problems with the communications system sometimes. It seemed that if one of the kites was at the wrong height, the system would not work. This led Loomis to believe that there were different areas in the atmosphere, and depending which area you were in, would control if the communication would work or not.
There were even days when the system just would not work at all. In thinking about that, I suppose it could be due to the electrostatic charge in the atmosphere that existed at that time during the experiment.
|