Electronics: How relays work
By: Jeannette Payne
Relays are electromagnetic switches that are operated by a small electric current. These have the ability to turn on and off similar to that of a larger electric current. When the building process of the relays has been completed they take on the appearance of...
By: Terrence Aym
While the US has reduced its national space program to skeletal proportions—and is now picking at the bones—Russia has announced an aggressive plan to build a huge base on the Moon.During festivities celebrating the 50th anniversary of the first human ever to...
By: Edward Matthews
Electricity is a virtual necessity in the modern world. It is a part of most people’s lives even more than they realize. Many people do not fully understand how this modern marvel powers all the things they do. There are two basics forms of...
An overview of how electricity works
By: Srikanth Radhakrishna
Electricity has added immense value to the lives of human beings all over the world. The invention of electricity can be considered as a giant leap in human civilization. Today one cannot imagine the world without electricity. It is impossible for a human being to...
By: Gemma L. Reece
Charon is the largest moon or ‘satellite’ of the former planet Pluto (discovered in 1930) which was classed as our solar system’s ninth planet until 2006; Charon is also the 22nd largest body in the solar system. There has been debate in the...
Electronics: How relays work
By: Nigel Holmes
A relay is nothing more than an electrical switch. However, while a simple switch, like that used in a household light, is operated by hand, in a relay a second electrical circuit is used to open or close the circuit. The advantage of using a...
Electronics: How relays work
By: R. Renee Bembry
Electric current relays work in conjunction with switches and are used to power electronic gadgets by starting them or stopping them (turning them on or off). Electricians use different types of relays to accomplish specific kinds of tasks, however, all relays have common factors that...
Electronics: How relays work
By: Edward Matthews
Relays are switches that are operated by electrical signals, as opposed to being operated manually. There are a many different types of these devices, and they each work in a somewhat different manner. The purpose of any relay is to be able to perform a...
By: Terrence Aym
Astonishingly advanced alien super-civilizations may dwell within gigantic black holes within the galactic nuclei! So proclaims eminent astrophysicist and researcher Dr. Vyacheslav Dokuchaev at the Institute for Nuclear Research of the Russian Academy of Sciences in Moscow. "Advanced civilizations may live safely inside the super-massive...
By: Leigh Goessl
For centuries now humanity has been curious about how the universe began, and the study of astronomy continues to intrigue, puzzle and excite modern society. For the most part, astronomers are still mystified about how the universe came to be and are always seeking answers...

 

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