Author: Ray Keefe
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Mechanical Gears Breakthrough
Mechanisms Mechanisms are important in many aspects of modern life. They adjust the focus on your smart phone camera, put the wheels down when a plane is coming in to land, allows automobiles, trains, trucks and ships to move and even allow probes to roam about on the surface of Mars. So I was…
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Schools of the Future
Schools Today The modern school as we know it was designed to provide workers for the expanding paradigm of the Industrial Revolution. That is, the first Industrial Revolution. We are now up to the Fourth Industrial Revolution, also known as Industry 4.0. So how well are we doing three Industrial Revolutions later? First…
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LED Street Lighting
LED Street Lighting With concern for rising global emissions and the majority of the worlds power still generated by burning fuels of one kind of another, the replacement of older street lighting technologies with higher efficiency and longer life LED Street Lighting would appear to make sense. And on the up side, everyone agrees that…
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Nanowires Enable FinFET Successor
FinFETs Rule At the moment, the dominant transistor technology used to make high density silicon devices is the FinFET. This is made using vertical fins allowing the gate to wrap around the Source and Drain. This improves control of the channel. Some additional details are available at FinFET FinFETs have dominated dense semiconductor…
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Memristors
Memristor The Memristor is a device that was theoretically predicted in 1971 by Leon Chua but not demonstrated in practice until 2008. It is one of the four Fundamental Circuit Elements. The full collection is: Resistor Capacitor Inductor Memristor The diagram below shows how they relate to the physical elements of Voltage, Current, Charge,…