We have a library in our house. I take a book and put it on top of the bookcase thats built into the wall where no one can see it, and he comes in and tells me what book it is. How does he do this? He says it's easy.
2007-02-10 06:17:49 · 5 answers · asked by hot95spencer 2 in Science & Mathematics ➔ Other - Science
He looks at what book is missing from the case- they are probably arranged in order.
2007-02-10 06:21:14 · answer #1 · answered by Dead Robin 2 · 0⤊ 0⤋
Either he knows all the books in the bookcase and can therefore determine which book is missing, or he just looks on the top of the bookcase frequently.
2007-02-10 06:25:35 · answer #2 · answered by leprechaun 2 · 0⤊ 0⤋
either he knows all the books that are in the bookcase and can tell what is missing or he can easily see the book that you moved even though you think he can't.
2007-02-10 06:31:35 · answer #3 · answered by michaell 6 · 0⤊ 0⤋
If he's taller than you, maybe there's some mirror where he can see the reflection of the top of the bookcase, but you can only see the reflection of the ceiling.
2007-02-10 07:45:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Dewy Decimal System.
2007-02-10 06:22:17 · answer #5 · answered by Anonymous · 0⤊ 0⤋