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DIY Spectrometer

DIY Spectrometer

“Build a simple spectrometer out of LEDs to see what wavelengths are in different types of light! Orbiting Earth at 250 miles up, the crew aboard the International Space Station is exposed to higher levels of radiation in space than …

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PCB UV Exposure Unit

PCB UV Exposure Unit

“A UV exposure box is an extremely useful piece to make PCBs. I have searched and found that they are too big and too expensive for my uses. In addition, all the devices require an external power sorce. Thereupon I …

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