Puzzle - 4 Continued....

You must have noticed that apples or balls are taken in binary notation, which is based on 2.  We use the system based on 10, primarily for the reason that we have 10 figures. Here is some information about binary notation from a book 'Mathematics and the Imagination' by Edward Kasne and James Newhar that you may find amusing. 

The binary or dyadic notation (using the base 2) is hardly a new concept, having been referred to in a Chinese book believed to have been written about 3000 B.C. Forty-six centuries later, Leibniz rediscovered the wonders of the binary scale and marvelled at it as though it were a new invention- somewhat like the twentieth-century city dweller, who, upon seeing a sundial for the first time , and having it explained, remarked with awe: 'What will they think of next?' In its use of only two symbols, Leibniz saw in the dyadic system something of great religious and mystic significance: God could be represented by unity, and nothingness by zero, and since God had created all forms out of nothingness zero and one combined could be made to express the entire universe.  Anxious to impart this gem of wisdom to the heathens, Leibniz communicated it to the Jesuit Grimaldi, president of the Tribunal of Mathematics in China, in the hope that he could thus show the Emperor of China the error of his ways in clinging to Buddhism instead of adopting a God who could create a universe out of nothing. 

Here is another puzzle

A room has three switches.  They are connected to three bulbs in another room.  You are in the room with the switches and can put them on or off.  Then you go to another room where bulbs are. You can not come back to the room that has switches.  How can you find out which switch relates to which bulb.

Arvind a cousin of mine who works with Coope Power is an Electrical Engineer.   He says that he is working on a project to discover a bulb that does not emit heat; it only emits light.  This would be an ideal bulb and if that happens then this puzzle cannot be solved.