Form is temporary, function is permanent. The most important inventions are the ones that relate to the human condition, and they crop up over and over again. Below, Houston shares five key insights ...

In 1966, there were no cheap, reliable keyboards. The keyboards that did exist were too bulky and expensive to work for the calculator. Jim Van Tassel took on the task of designing a small, ...

Anyone who’s taken classes in geometry, algebra, trigonometry or other advanced math forms has certainly encountered the graphing calculator before. These multi-function devices make incredibly ...