Magneto

A magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. Unlike a dynamo, a magneto does not contain a commutator to produce direct current. It is categorized as a form of alternator, although it is usually regarded as distinct from most other alternators, which use field coils rather than permanent magnets.

Hand-cranked magneto generators were used to provide ringing current in telephone systems. Magnetos were also adapted to produce pulses of high voltage in the ignition systems of some gasoline-powered internal combustion engines to provide power to the spark plugs. Use of such ignition magnetos for ignition is now limited mainly to the following kinds of engines:

Magneto (Atlas Comics)

Magneto is a fictional character created by Stan Lee and Jack Kirby. The character first appeared in Strange Tales #84, in May 1961, just before Atlas Comics became Marvel Comics. Even though the character name and creators are the same as the modern Marvel's Magneto, the Atlas Comics character is not related to Marvel's mutant.

Fictional character biography

Eight-foot-tall (2.4 m) Hunk Larken is one of the strongest men in the country and can lift a car with his own hands, but he is a dim-witted worker who can not find a job. One day, Larken hears a government announcement and volunteers for the US space program. Because of his strength and low excitability he is chosen as the first human to travel to outer space.

During his mission, Larken is accidentally exposed to a cosmic mist of radioactive anti-matter. When he returns to Earth, Larken discovers that he now has the power to control magnetic fields and move large objects and other beings. Driven by a desire for revenge against those who taunted him in his past, Larken assumes the name Magneto and begins a wave of violence and robbery. He soon discovers, however, that his powers are fading, and are apparently only temporary. Fearing being captured for his crimes, Magneto infiltrates a rocket that will be sent to space. In actuality, however,the rocket was part of a plan to exile Magneto into space where he could live a peaceful existence and even find another world that suits him better.

Magneto (power generation)

A magneto is an electrical generator that uses permanent magnets to produce alternating current. Unlike a dynamo, there is no commutator and so they cannot produce direct current. They are categorised as a form of alternator, although they are usually regarded as distinct from most other alternators, which use field coils rather than permanent magnets.

Magnetos date from the earliest days of electrical engineering. Despite this, they have never been widely applied for the purposes of bulk electricity generation, for the same purposes or to the same extent as either dynamos or alternators. Only in a few specialised cases, as described here, have they been used for power generation.

Common uses of magnetos

Magnetos have advantages of simplicity and reliability, but are inefficient owing to the weak magnetic flux available from their permanent magnets. This restricted their use for high-power applications.

Some magnetos did find use as telephone magnetos in early telephones, particularly for ringing.

Cato, a Tragedy

Cato, a Tragedy is a play written by Joseph Addison in 1712, and first performed on 14 April 1713. Based on the events of the last days of Marcus Porcius Cato Uticensis (95–46 B.C.), a Stoic whose deeds, rhetoric and resistance to the tyranny of Julius Caesar made him an icon of republicanism, virtue, and liberty. Addison's play deals with, among other things, such themes as individual liberty versus government tyranny, Republicanism versus Monarchism, logic versus emotion, and Cato's personal struggle to hold to his beliefs in the face of death. It has a prologue written by Alexander Pope, and an epilogue by Samuel Garth.

The play was a success throughout England and her possessions in the New World, as well as Ireland. It continued to grow in popularity, especially in the American colonies, for several generations. Indeed, it was almost certainly a literary inspiration for the American Revolution, being well known to many of the Founding Fathers. In fact, George Washington had it performed for the Continental Army while they were encamped at Valley Forge.

List of The Hunger Games characters

The following is a list of characters in The Hunger Games trilogy, a series of young adult science fiction novels by Suzanne Collins that were later adapted into a series of four feature films.

Main characters

Cato (1800 ship)

Cato was launched at Stockton in 1800 and registered in London to Reeve & Green. She was wrecked on the Great Barrier Reef, Australia, in 1804.

Cato arrived in Port Jackson, New South Wales, from England on 9 March 1803, carrying stores.

On 10 August 1803, Cato left Sydney in the company of the ships HMS Porpoise and Bridgewater, all bound for Canton. On 17 August the three ships got caught near a sandbank, 157 miles north and 51 miles east of Sandy Cape.

With shrinking leeway, both Cato and Porpoise grounded. Bridgewater sailed on, despite knowing that the other two vessels had come to grief. The crew and passengers of the wrecked vessels were able to land on a sandbank as both their ships broke up.

This sandbank become known as Wreck Reefs and is located in the southern part of the Coral Sea Islands approximately 450 km (280 mi) East Nor East of Gladstone, Queensland or 250 km (155 mi) east of the Swain reefs complex. They form a narrow chain of reefs with small cays that extends for around 25 km (16 mi) in a west to east line.