Coin Sorting Machine from Cardboard For this project you need cardboard, cutting knife and glue. The most important part - to ...

Matt Sengbusch knew this day would come. As the caretaker of more than 40 pressed penny machines in the Bay Area, he’s acutely aware of what’s happening in the coin market and had been following the ...

Long before electricity was a common household utility, humanity had been building machines to do many tasks that we’d now just strap a motor or set of batteries onto and think nothing of it.