2008 Nov 19, 4:28"A binary birthday candle. It consists of a single candle with seven wicks, where the wicks that are lit represent the birthday individual's age in binary. This single candle design works flawlessly
to represent any age from 1 to 127, never requiring anyone below the age of 127 to blow out more than a mere six candles at a time."
via:swannman birthday geek math humor howto cake birthday-cake candle binary