“Life is like riding a bicycle. To keep your balance you must keep moving.” — Albert Einstein.
Why does a bike stay balanced when you are moving and fall to the side when you are standing still? Anyone who has ridden a bike knows that if you keep moving you won’t fall but as soon as you come to a stop you will need to put your feet on the ground or risk tipping over. Most people think it has to do with the spinning wheels, like a gyroscope, that keeps the bike upright. It’s much more complicated than that, and not well understood by most engineers and scientists.