We take wireless charging for granted with many of the gadgets we use today, such as smartphones, among others. Four decades ago, electronics like calculators were relatively new inventions, and most ...

Due to its price, size, and capabilities, I can still remember the graphing calculator I used in high school, even though I haven't needed to graph a parabola in ages. The Internet Archive just made ...

Before the electronic calculator, there was the mechanical calculator, a heavy device often about the size of a small computer that cost thousands in today’s dollars. They were indispensable tools ...

This chaos of churning gears comes down to a fairly simple explanation. Division is just a series of sequential subtraction, and division by zero is the sequential subtraction of zero, over and over ...

There’s lots of gadgets on the NY subways. I don’t get as lucky as Jesus, but yesterday I looked over at this (ok, hairy) man tapping on a very ’90s looking ...

When I started as a TA, some pre-calc courses were using graphing calculators to “teach” graphing. Thankfully I never had to deal with that as I strongly felt that using a calculator to graph stuff ...