Power Factor Correction Transformers & Power Factor Calculations
Correction or improvement of the power factor of electrical equipment like transformers is done to reduce the required electric power and thereby save …
Continue ReadingHow to Build a Portable Cassette Tape Player
A cheap cassette player constructible design is discussed in this article. An interesting home electronic project for all those electronic …
Continue ReadingMay 1842 Versailles Train Crash
Metal fatigue causes failure of structural elements. This fatigue can be a result of over-stress, and the 1842 Versailles train crash was attributed …
Continue ReadingHow to Build Bird Sound Effects Generator Circuit
The article describes a few simple oscillator circuits which are suitably dimensioned as different types of tone generators resembling the sounds of …
Continue ReadingUpgrade Knob and Tube Wiring - Is It Safe to Leave it In Unhooked?
You’ve just bought an older house and found out that it has knob and tube wiring. You’re wondering whether or not you should upgrade it. …
Continue ReadingDetecting Freon Leakage in Air Conditioning Units
Freon leaks from air conditioners have adverse effects on our health. Keeping a check over Freon levels in air conditioners is important not only for …
Continue ReadingDesigning and Installing a Shoulder-warming Radiant Heat System for a Factory or Shop Space
Installing radiant heat systems in factories or industrial plants requires knowledge of the current and future uses of the space. Designs should be …
Continue ReadingShip Design - What are the Parts of a Sailing Ship?
A sailing ship is a wind-powered vessel and this article describes the design, function, and nomenclature of the main components of a sailing ship.
Continue ReadingThe New Chinese Aircraft Carrier Shi Lang is Not a Threat
As of 2011, China is a carrier power. A long time coming, the rebuild of the old Soviet era sister to the Kuznetsov- the Varyag- into the Shi Lang …
Continue ReadingUS Army Corp of Engineers - History and Major Works
The US Army Corps of Engineers played a remarkable role in structuring the nation’s parks, lands, waterways, and coastal shorelines. They have …
Continue ReadingIs Antimatter Real?
Science and science-fiction often refer to terms such as antiparticles, positrons, antimatter spaceships, etc. All this matter-antimatter thing may …
Continue ReadingPrecast Concrete Beam to Beam, Beam to Column Failures
Precast concrete is easy to work with, but its performance against earthquakes does not live up to the expectations. Frequent failure of precast …
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