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Rising pencil. Focus secret
Directory / Spectacular tricks and their clues
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Focus Description:
The magician places the pencil in the bottle, and following the magician's commands, the pencil slowly rises and falls inside the bottle.
Focus secret:
The pencil moves with the help of a thin invisible thread.
A very fine nylon thread or human hair (50 to 60 cm long) is tied or glued to one end of the pencil. The other end of the thread is tied to a button on the magician's clothes.
Dip the end of the pencil with the string attached into the bottle or vase. Moving away or approaching the bottle, the magician pulls the thread, setting the pencil inside the bottle in motion.
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Random news from the Archive Step-down voltage regulator LM26001
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NATIONAL SEMICONDUCTOR presents the LM26001 step-down voltage regulator with an output current of 1,5 A. Its input voltage range is from 4 to 38 V, the output voltage is 3 V.
The internal operating switching frequency can be adjusted from 150 to 500 kHz. The quiescent current (at no load) is only 40 uA. The output voltage is maintained with an accuracy of 1,5%. Additional features: soft start, protection against overvoltage and short circuit current.
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