I have to go buy a new calculator for my combinatorics class, as well as for the physics classes I'm teaching next year. While my old HP 48G still works, it lacks the connectivity options I need for ...

Fifty years ago, Hewlett-Packard introduced the first handheld scientific calculator, the HP-35. It was quite the engineering feat, since equivalent machines of the day were bulky desktop affairs, if ...

Today is a happy day for engineers everywhere. Well at least for those of us of a certain vintage. HP is introducing a retro model of its first hand-held scientific calculator, the HP-35, to mark the ...

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 ...