This handy DIY optical maser cursor communicator postulate little more than time , an old optical maser pointer , some portion from your local RadioShack , and , of course , a tuxedo .
Here’sthe PDF file(eyes only ! ) you ’ll necessitate to get start up on what really sounds like a pretty refined piddling 15 - minute of arc labor .
Basically , the audio sign from the attached mike varies the power output of the laser . This , in turn , cause the laser ’s brightness to fluctuate in a means that follow the shape of the sound wave .
At the other ending , where your tiptop undercover agent friend awaits his kill order for those irritating neighborhood revolutionaries , a solar cell ( or photo - resistor ) helpfully converts the oscillating illumination signal back into the husky , absurdly fake Scotch accent you ’ve applied to your voice in yet another feeble , cliched attempt to mime Sean Connery . [ MAKE ]
LASERSMakeRadioShack
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