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Characteristics of a Short Wave Oscillator at Very Low by Nettleton L. L.

By Nettleton L. L.

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And then came a that long period of experimentation in the laboratory, the workshop in which man hammers into material expression the ideas which his genius creates. He made tops and mounted 12 The Boys 1 Own Book of Great Inventions gyroscopes in a great variety of ways. He found that a picture frame mounted on two sharp pins could be balanced perfectly by placing within the frame a spinning gyroscope. When he replaced the pins with wheels, tandem fashion, not frame balance itself but it would run on a would the only stretched wire.

7 will make clear the theory of duplex telegraphy. The current from the battery at divides and passes around the electromagnet in opposite A two branches being balanced so that each same quantity of current. The upper and directions, the receives the lower halves of the magnet being wound in opposite directions tends to create a north pole and a south pole of equal and opposite strengths at each end and therefore the result keep the magnet in a neutral condition and to prevent armature from being attracted.

This device consists of a heavy gyro-wheel mounted on a vertical shaft set within a casing placed on horizontal trunions. The gyro-wheel rotates on a vertical axis, the ship in attempting to roll will turn it about a horizontal axis lengthwise of the ship, while the casing and with it the gyro-wheel within are free to precess about a horizontal axis crosswise of the ship. Thus it will be seen that here we have a gyroscope with three degrees of freedom again and its action with the pitching of the ship is exactly like that of the gyros in the mono-rail car.

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