One might think that there are some tools so fundamental, so perfectly elegant in design and function, that technology just couldn’t improve upon them. Shovels, for example. Picks and hammers and wrenches. Even the lowly sink or toilet plunger.
Think again. Plunger technology was first invented in the late 18th century, but a patent for a new and improved technology was filed as recently as 1987. The long tentacles of technology have embraced even this common household clog-remover. Prices have risen along with the improvements. But, in the end, which provides more bang for the buck:
A cheap plunger or an expensive one?