Equal sign with handwritten arrows to make the well-known optical illusion of the lines of equal length

The elusive equilibrium

The notion of balance is relevant in more than a few ways in our lives. But it is not always easy — or even possible — to establish it.

eople have been using balance scales for a long time. The earliest evidence, discovered in Pakistan and Egypt, goes back at least 4000 years. Such devices were (and are) based on the idea that one…