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World's Largest Electric Light Bulb- 50,000 and 75,000 Watts respectively

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    World's Largest Electric Light Bulb source Facts all about the world largest , longest, biggest, and tallest bulb. Imagine if we have this in our home maybe we cannot afford to pay the monthly electric bill because of the high wattages. World's Largest Light Bulb The Thomas Edison Memorial Tower and Menlo Park Museum was built in 1937 to mark the "Birthplace of Recorded Sound" in the Menlo Park section of what is now the town of Edison. Tallest Light bulb of Thomas Edison It sits on top of the 117-foot concrete Memorial Tower, which was built in 1937 by Edison’s employees. It’s an homage to both the light bulb and another key Edison invention, the phonograph.A monumental replica of Edison’s first practical incandescent bulb, it’s nearly 14 feet of Pyrex glass segments. Thomas Edison Longest Lasting Light Bulb Is the Centennial Light located at 4550 East Avenue, Livermore, California. It is maintained by the Livermore-Pleasanton Fire Department...
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Smart carpet..................detects falls and strange footsteps

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Smart carpet detects falls and strange footsteps A team at the University of Manchester in the UK has developed a carpet that can detect when someone has fallen over or when unfamiliar feet walk across it. Optical fibres in the carpet's underlay create a 2D pressure map that distorts when stepped on. Sensors around the carpet's edges then relay signals to a computer which is used to analyse the footstep patterns. When a change is detected - such as a sudden stumble and fall - an alarm can be set to sound. By monitoring footsteps over time, the system can also learn people's walking patterns and watch out for subtle changes, such as a gradual favouring of one leg over the other. It could then be used to predict the onset of mobility problems in the elderly, for example. The carpet could also be used as an intruder alert, says team member Patricia Scully . "In theory, we could identify footsteps of individuals and the shoes they are wearing," she says. But...
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Vector Group of Power-Transformer-Winding connection designations

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                             Basic Idea of Winding An ac voltage applied to a coil will induce a voltage in a second coil where the two are linked by a magnetic path. The phase relationship of the two voltages depends upon which ways round the coils are connected. The voltages will either be in-phase or displaced by 180 degree. When 3 coils are used in a 3 phase transformer winding a number of options exist. The coil voltages can be in phase or displaced as above with the coils connected in star or delta and, in the case of a star winding, have the star point (neutral) brought out to an external terminal or not. Six Ways to wire Star Winding : Six Ways to wire Star Winding Six Ways to wire Delta Winding : Six Ways to wire Delta Winding Polarity An AC voltage applied to a coil will induce a voltage in a second coil where the two are linked by a ma...
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