The calculator’s “C” button—the one that clears input—was gone. The “C” itself had been cleared. The “C” button’s function is vestigial. Back when calculators were commercialized, starting in the ...

Now picture that device being designed by a prisoner in a German Nazi concentration camp during World War II, with few ...

In the era of the smartphone, an electronic calculator may seem a bit old-hat. But they continue to hold a fascination in our community, both when used for their original purpose, and as objects ...

But let's say you are a taxi driver who encounters passengers who sometimes have trouble working out their taxi fare and the change they are owed. This would be the most practical way of using a car ...