Remember a few years ago when Amazon introduced that mysterious device called a Kindle? People worried that electronic readers would replace traditional books. Turns out the death of the hardcover was greatly exaggerated. Also, the expression “bump...
Why do we say something is jet black? It doesn’t have anything to do with aircraft. The jet in jet black is the name of a black semi-precious stone, which in turn takes its name from the part of Syria where it was found in abundance in antiquity...
Why do we say something is jet black? Does it have to do with the color of a 747’s exhaust? Or skid marks on the runway? Or something else entirely? We provide a color with a mineralogical answer. This is part of a complete episode. Transcript of...