Homemade Clackulator
When you think “pocket calculator,” your next thought probably isn’t “custom cabinetry.” But this single-operation relay calculating engine deserved nothing less.
calculator
Iphone Camera Identifies Resistor Values
Speaking from experience, I’ve gone through the madness of sorting hundreds of resistors. Even if you have sharp vision and good color discrimination, it’s a challenging chore. Rich Olson of Nothing Labs coded an Iphone app that allows you to simply take a picture of the resistor, drag bar shaped indicators onto the resistor, and receive the ohm value and tolerance of the resistor.
128 vintage pocket calculators
We first discovered Emil Dudek’s online index of vintage pocket calculators back in 2006, but it’s grown dramatically since then. [via adafruit]
DIY graphing calculator made with Beagleboard
Sick of being harassed just for trying to extend the functionality of your graphing calculator?
