Torsion pendulum clock

A torsion pendulum clock, or torsion clock (also known as 400-day or anniversary clock), is a mechanical clock which keeps time with a mechanism called a torsion pendulum. This is a weighted disk or wheel, often a decorative wheel with 3 or 4 chrome balls on ornate spokes, suspended by a thin wire or ribbon called a torsion spring (also known as "suspension spring"). The torsion pendulum rotates about the vertical axis of the wire, twisting it, instead of swinging like an ordinary pendulum. The force of the twisting torsion spring reverses the direction of rotation, so the torsion pendulum oscillates slowly, clockwise and counterclockwise. The clock's gears apply a pulse of torque to the top of the torsion spring with each rotation to keep the wheel going. The wheel and torsion spring function similarly to a watch's balance wheel and hairspring, as a harmonic oscillator to control the rate of the clock's hands.

Description

Torsion clocks are usually delicate, ornamental, spring-wound mantel clocks. The polished clock mechanism is exposed under a glass case or dome, to allow people to watch the torsion pendulum turn. Clocks of this style, first made by Anton Harder around 1880, are also known as 400-day or anniversary clocks, because many can run for an entire year on a single winding. This does not mean they will keep accurate time the whole year. It's best to wind the clock once a month. But some models will run up to 1000 days on a single winding.

Kundo (disambiguation)

Kundo may refer to:

List of Greyhawk deities

This is a list of deities from the Greyhawk campaign setting for the Dungeons & Dragons fantasy role-playing game.

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Al'Akbar

Al'Akbar is the Baklunish demigod of dignity, duty, faithfulness, and guardianship. His symbol is a cup and eight-pointed star, images of the legendary Cup and Talisman that now bear his name. The name "Al'Akbar" was first mentioned in Issue #7 of Strategic Review, when Ned Healey wrote a description of "the Cup and Talisman of Al'Akbar", and associated them with worship of Allah. Al'Akbar is subordinate to the other Baklunish gods, remaining a mere demigod out of respect for them. His faithful oppose the sadistic elemental cults of Ull. Al'Akbar is allied with Heironeous. Al'Akbar's priests use the Cup and Talisman as metaphors for the good life, urging their flocks to be vessels of kindness and emblems of devotion.

Allitur

Allitur is the Flan god of Ethics and Propriety. His holy symbol is a pair of clasped hands. Allitur was first detailed for the Dungeons & Dragons game in the World of Greyhawk Fantasy Game Setting (1983), by Gary Gygax. Allitur is depicted as a Flan man riding a horse, Keph, who never tires. Allitur's realm is Empyrea, The City of Tempered Souls. Empyrea sits on the edge of a cold, clear mountain lake on Mount Celestia's fifth layer, Mertion. The many healing fountains and curative waters in Empyrea can restore withered limbs, lost speech, derangement, and life energy itself; those who ail need only find the right fountain. Empyrea is also known for its healers and hospitals, and many a pilgrim seeks to reach this legendary site of perfect health. Allitur teaches respect and understanding for laws, rituals, and other cultural traditions.