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All about LiFi technology

 Li-Fi technology
Li-fi or light fidelity is a wireless technology which was discovered by physicist and professor Herald Haas. It uses visible light instead of radio waves to transmit date rate at speed of Tb (Tera bytes). It is a green technology and has a future access scope.

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The Gauss Rifle: A Magnetic Linear Accelerator.

This very simple toy uses a magnetic chain reaction to launch a steel marble at a target at high speed. The toy is very simple to build, going together in minutes, and is very simple to understand and explain, and yet fascinating to watch and to use.

 

gauss rifle

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Current Transformer

Instrument transformers means current transformer & voltage transformer  are used in electrical power system for stepping down currents and voltages of the system for metering and protection purpose. Actually relays and meters used for protection and metering, are not designed for high currents and voltages.

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Distance Protection Relay

ImpedanceRelay2

Distance relays respond to the voltage and current, i.e., the impedance, at the relay location. The impedance per mile is fairly constant so these relays respond to the distance between the relay location and the fault location.

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Smart sensor, lets your smartphone hear in noisy parties

People trying to talk to Apple’s electronic personal assistant Siri in a crowded place may soon no longer have to look like they are about to eat their iPhones, thanks to a new invention by Duke University engineers.

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New way to control light

lightcontrolcentralfloridax250

 

A device resembling a plastic honeycomb, yet infinitely smaller than a bee’s stinger, can steer light beams around tighter curves than ever before possible, while keeping the integrity and intensity of the beam intact.

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