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Topics > Physics > Electricity

	Project title	How to build a wireless telegraph set
	Difficulty Level	High school
	Main link	Click here to view all details of this science project (Cached) (View 3rd party site)
Description
The simplest wireless telegraph set consists of a means of generating and controlling a spark which sends out radio waves into the air, and a receiver or detector to detect the radio waves. Probably the simplest way to generate and control a spark is to use a switch (called a telegraph key) to turn on and off a buzzer which generates sparks. The simplest way to receive or detect the radio waves generated by the buzzer is to use an AM radio tuned to a place on the dial where there are no other stations.
Materials
This idea is contained in a third-party website. To view the science fair projects, please click on the link above. Copyright in the third party website belongs to the relevant author.
Brief Instructions
[Please see third-party website for instructions]

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