अंतर्नाद

I have always found sand timers fascinating! As a kid, I couldn't see that sand timer sitting there idle all day long flowing at it's own pace. It was as if he never bothered or made any attempts to go faster. He was at content with it's own pace. And there was I, desperately wanting it to obey my command to have a quicker flow. I must have tried tapping, flicking or shaking the timer thousands of times, failing in every other attempt, and then eventually gave up upon him to make it flow faster.  Little did I understand then that the methods I was implementing were creating a gap between the sand and the neck of the hourglass, eventually reducing the amount of sand that could get through the opening. Now, I know that for an efficient flow, if I could have vibrated the timer at just right amplitude I could have been successful! This would separate the sand from the side walls without creating a large upward force on the sand. Just like the timekeeper, at time