Stick clocks are just one way of telling the time
In 1905, Albert Einstein published his theory of special relativity, teaching the world that time is relative. In the science fiction novel “The Hitchhiker’s Guide to the Galaxy,” author Douglas Adams declared that “Time is an illusion, lunchtime doubly so.” And in March of every year, Daylight Savings Time begins, reminding us again that time isn’t absolute as we set our clocks ahead an hour. Historically, there have been many ways to track time and account for the changes in daylight hours that come with the seasons. In some systems, the length of an hour could vary ...