In some later experiments with cat's whisker detectors using a variety of substances, he passed current through them and noticed that some gave off light-the first known report of the effect of the light-emitting diode.
This is the first known report of the effect of the light-emitting diode. In some later experiments with cat's whisker detectors using a variety of substances, he passed current through them and noticed that some actually gave off light-the first time a light-emitting diode had been seen.
In some later experiments with cat's whisker detectors using a variety of substances, he passed current through them and noticed that some actually gave off light-the first time a light-emitting diode had been seen. This is the first known report of the effect of the light-emitting diode.
In some later experiments with cat's whisker detectors using a variety of substances, he passed current through them and noticed that some actually gave off light-the first time a light-emitting diode had been seen. This is the first known report of the effect of the light-emitting diode.