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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 02:58, 8 November 2010
, 02:58, 8 November 2010→Carbon Microphone
* wire
* wire
* rubber band
* rubber band
[[File:Carbon microphone materials.jpg]]
Crush the charcoal to a fine powder. Make a hole in the centre of the lid. Strip a small amount of insulation from the wire, pass the wire through the hole. Then place a piece of foil against the wire. Fill the lid with crushed charcoal. Place foil over the charcoal and secure with a rubber band.
==Links==
==Links==