A group of students from Ollie College have built a K’NEX calculator. Though not very practical, it’s a nifty conversation piece nonetheless. Video after the jump. Here’s how it works:

It works by utilizing 9 little balls that you drop down from the top…As they fall certain levers are flipped that in turn move a flag that shows you what number is being entered. The first four balls (remember they’re using binary) tell the machine what the first number is, the fifth ball says whether you’re adding or subtracting, and the last four indicate the other number

[via Gizmodo]

A group of students from Ollie College have built a K’NEX calculator. Though not very practical, it’s a nifty conversation piece nonetheless. Video after the jump. Here’s how it works:

It works by utilizing 9 little balls that you drop down from the top…As they fall certain levers are flipped that in turn move a flag that shows you what number is being entered. The first four balls (remember they’re using binary) tell the machine what the first number is, the fifth ball says whether you’re adding or subtracting, and the last four indicate the other number

[via Gizmodo]