Matrix World on Instagram: "Long Before Digital Clocks, Humans Measured Time Using Fire Itself. A Candle Burns At A Predictable, Nearly Constant Rate When Wax Quality, Wick Size, And Airflow Stay Stable. As The Flame Consumes Wax, The Candle Shortens In Equal Intervals, Allowing People To Track Minutes And Hours By Marking Levels Or Placing Indicators Along Its Height. This Method, Known As A Candle Clock, Stands Among The Earliest Timekeeping Innovations, Driven Purely By Heat Transfer, Combust