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[Raphael Abrams] does a lot of freelance work, but he has trouble accurately keeping track of the hours he has put in for his clients. After trying various applications and methods of logging his time, he finally decided to build a device that worked just the way he liked. He calls his device the “Freelance [...]

Tags:  freelance device time raphael-abrams puncher raphael microcontrollers  

Back during the Renaissance, great artists like Leonardo, Michelangelo, and Raphael would create their own paints. Of course paint is very cheap and readily available, but that doesn’t mean you can’t make your own paint by playing with chemistry. Last summer, [Sean] at the Philly hackerspace Hive76 did some experiments with ferrofluids. For these experiments [...]

Tags:  paint renaissance chemistry sean leonardo raphael inorganic-chemistry ferrofluids great-artists hacks