Discover how to build your own DIY laser pointer that connects to your smartphone's headphone jack and is controlled via an app. This step-by-step guide covers preparing the audio jack, soldering the ...
Check out this fun DIY projector for the iPhone from the guys from Hack n Mod, made using 35 individual laser pointers, which can recreate a bit map font using the iPhone. This cool iPhone projector ...
Carolyn Trietsch recently defended her Ph.D. in entomology at Penn State. You can view her website or follow her on Twitter @carolyntrietsch. Laser pointers are perhaps the most abused visual aids in ...
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