Posted on 11/09/2009 5:50:41 PM PST by GodGunsGuts
Sir Ambrose Fleming: Father of Modern Electronics
--snip--
Sir John Ambrose Fleming was a leader in the electronics revolution that changed the world. As a professor at a major university, he carefully researched the evidence for Darwinism, concluding that the theory is not supported by science. He also influenced hundreds of students to evaluate the evidence in science for Darwinism. An outstanding scientist and creationist, he played a significant role in the development and maturation of the early creation movement. As Travers and Muhr wrote, he "had an unusually long and active life," and his life changed the world as did few other scientists...
(Excerpt) Read more at icr.org ...
Ping!
I am in school for electrical Engineering right now, and for the life of me, I am brain dead on what he advanced!
Magnetism?
The Triode?
Nikola Tesla he is not! Now there was a genius! He invented tomorrow.
" The Supreme Court of the United States later invalidated the patent because of an improper disclaimer and, additionally, maintained the technology in the patent was known art when filed.[6]"
[From the article] ... is best known for developing the first successful thermionic valve (also called a vacuum tube, a diode, or a Fleming valve) in 1904. His invention was the ancestor of all electronic tubes, a development that gave birth not only to radio communications, but to the entire electronics industry.
Read the article!
From what I can find on Fleming, he didn’t reject evolution altogether, but rejected it for man over the past 6000 years. He wasn’t a YEC’ie either.
Obviously he wasn’t a real scientist.
Without acceptance of evolution theory how could he accomplish anything in the electronic field?
“Nikola Tesla he is not! Now there was a genius! He invented tomorrow.”
I totally agree, Marconi took credit for radio that Tesla invented.
This Sir assclown is just another pretender.
Tesla bailed on Edison because Edison was dumber than dogstuff. That Edison clown thought DC was the way to distribute power.
What an asshole.
At least he distributed it through wires and didn't lose all his investor's money.
And Tesla's AC isn't distributed through wires???
Sir Ambrose Fleming: Father of Modern ElectronicsModern (cough cough) Electronics?
Did somebody just inherit a 1960's round picture tube RCA set from thier grandparents?
He decided to place a second element, a small metal plate inside the bulb at a short distance from the filament. This element was furnished with its own electrical terminal through the glass bulb.
[At that time, nobody could equal Edison in the skill of creating vacuums inside of glass bulbs and bringing wires through the glass.]
Edison noticed that he could make a current flow from the new "electrode" to the filament, through a vacuum mind you, but not in the other direction.
Ironically, because Edison based his entire power system on DC, no actual use of this one-way-only property occurred to him. Just out of habit, he patented a circuit using this device, but it turned out that a simple resistor would have functioned just as well. (The patent examiner evidently didn't know any better.)
Now, some physicists expressed interest in the device, because this was the first demonstration that electrical current could flow through a vacuum. So Edison sent some out, and others built their own upon hearing a description.
After the physicists had done all the experiments they could think of, the initial interest in the Edison device waned.
Then, in a German lab in 1887, Heinrich Hertz demonstrated the reality of the electromagnetic wave theory first forumlated by Clerk Maxwell in 1864. The race was on to harness these waves for communication. Many experimenters took to the field (a little treble entendre there ≤B^) and Tesla, Marconi, and others began to put together wireless systems.
The story of Marconi's pathbreaking commercialization of the art is well known.
One problem nagging at the early experimenters was the terrible insensitivity of the first receiving devices, requiring unbelievably large, elaborate, and above all, powerful transmitters to get any significant range, e.g., across the Atlantic. So the search was on for a better, meaning more sensitive, receiver.
The year was now 1904. The Englishman John A. Fleming had been pondering the receiver problem; he knew that the received signal came out of the antenna as a high frequency AC wave, and that the best known detectors that could deal with this wave and create a signal that humans could sense, was the "coherer" of the Frenchman Edouard Branly, but it was still the cause of the requirement for such brute power on the transmitting end. Fleming speculated that if he could just turn the AC wave into a fluctuating DC potential, "rectifying" it, that he might then be able to find a transducer that was much more sensitive; for instance, a telephone receiver (headphone) might be such a device.
And this is where the one-way-current-passing property of the Edison device came into play. It possessed precisely this rectifying property that Fleming was looking for.
He drew the dusty Edison Effect device from its drawer, figured out how to integrate it into the receiver circuit he was working on, and got amazing results. Of course, many practical improvements were soon made to the original crude laboratory device, and it helped to transform radio communications.
Who actually invented it? Historians give credit to Fleming, because he uniquely had the inspiration to see the practical application of this object, which he had inherited from another (rather more famous) inventor. So it was called then, and still in many places, "The Fleming Valve," or more technically the thermionic vacuum diode.
Just a couple of years later, a young Stanford PhD working on his own in California placed yet a third element between the filament and the plate; this he shaped into a "grid," and brought its connection out through the bulb also. Now, he found, he could control the plate-filament current with small voltages applied to the grid. Thus Lee DeForest invented the "Audion," the first thermionic electron device capable of amplification. With further improvements by Langmuir and others, it came to be known as the "vacuum triode," which enabled modern electronic communications, and even electronic computing, to come into existence.
To my mind, that year, 1907, saw the actual birth of electronics.
....aznd now TRYH to think what Sir John Ambrose Fleming would think about it with all the knowledge we’ve garnered in the 60+ years after he died. Heck, he didn’t even know about DNA.
Tesla experimented with air transmission of electricity as well as using the earth as a transmission re-bounder. The wireless transmissions would not be billable - as Tesla once said electricity should be free for all mankind. His funding was cut off and his transmission tower was dynamited. Go figure.
For more on Fleming, go to http://en.wikipedia.org/wiki/Ambrose_Fleming
His signal achievement appears to be in electronics: in introducing the world to thermionic emission and vacuum tubes.
For more on Fleming, go to http://en.wikipedia.org/wiki/Ambrose_Fleming
His signal achievement appears to be in electronics: in introducing the world to thermionic emission and vacuum tubes.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.