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Published on Jul 7, 2016
Because of its "high-tech" nature, most people assume the LED to be a comparatively recent development. Not necessarily so...
In this video I reference an account of some strange observations made in the early 1900s and then replicate them with a few simple items---a power supply, microscope, and a chunk of a common industrial abrasive. See for yourself!
This means that the LED was really not so much invented as discovered, and that human eyes first witnessed a functioning LED not in the 1970's or 1960's, but at least as far back as 1907!
I invite you to review my article: "Who Really Invented the LED?" where I explore the background on all of this in greater detail. Please visit my website at: