Download Gonzo Gizmos: Projects & Devices to Channel Your Inner Geek by Simon Field PDF

By Simon Field

Step by step directions to development greater than 30 interesting units are incorporated during this ebook for workbench warriors and grown-up geeks.

• targeted illustrations and diagrams clarify the right way to build an easy radio with a soldering iron, a couple of uncomplicated circuits, and 3 glossy pennies.

• directions are incorporated for a rotary steam engine that calls for a candle, a soda can, a size of copper tubing, and simply quarter-hour.

• to exploit optics to roast a sizzling puppy, no electrical energy or range is needed, only a versatile plastic reflect, a wood field, a bit algebra, and a sunny day.

• additionally incorporated are experiments so much technological know-how academics most likely by no means verified, equivalent to magnets that levitate in midair, metals that soften in scorching water, a Van de Graaff generator made of a couple of empty soda cans, and lasers that transmit radio indications.

Every test is through an evidence of the appropriate physics or chemistry.

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Additional resources for Gonzo Gizmos: Projects & Devices to Channel Your Inner Geek

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M Inside a television, high voltage is used to send electrons to the screen at high speed, creating the picture. By placing a large conductor on the front of the screen, you can make a simple capacitor to tap into some of that high voltage and put it to use outside of the television. The voltage is high but the current is very small, so that touching the foil is no more harmful than touching a doorknob after scuffing your feet on the carpet. In this experiment the can on the right is connected to the high voltage.

47 E L E C T R O M A G N E T I S M N W H Y D O E S I T D O T H AT ? M Inside a television, high voltage is used to send electrons to the screen at high speed, creating the picture. By placing a large conductor on the front of the screen, you can make a simple capacitor to tap into some of that high voltage and put it to use outside of the television. The voltage is high but the current is very small, so that touching the foil is no more harmful than touching a doorknob after scuffing your feet on the carpet.

The positive side of the pull-tab is attracted to the highly negative can on the right, and the pull-tab jumps over to touch the can on the right. Once the pull-tab touches the can, the electrons from the can rush onto the pull-tab until it has the same high-voltage charge as the can it is touching. The pull-tab and the can now have the same charge, and like charges repel. The charged pull-tab is now repelled by the can on the right, and moves to the left. The electrons in the can on the left are repelled by the pulltab and move to the left side of the can, leaving the right side somewhat positive.

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