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Mercury Arc Valve Rectifier is Something Every Mad Scientist Should have

Mercury Arc Valve Rectifier is Something Every Mad Scientist Should have
I have no idea what this is for, but I like it! As a matter of fact, I wouldn’t mind having one of these in my living room – or at least in my la-bor-a-tory. It’s actually something called a mercury arc valve rectifier, and it sure looks cool when powered up.

Light Up Business Card Gives Contact Details, Physics and Chemistry Lessons

Light Up Business Card Gives Contact Details, Physics and Chemistry Lessons
Aaron Alai made sure that prospective employers – and lovers – will remember him. They’ll remember him as the nerd with the business card that lights up. Touching two points on the card activates the small LED on the lower right of the card.
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