Using your Head is Permitted

June 2011 riddle

UPDATE (1 July): Despite the fact that one solution has already been submitted to this month's riddle, the riddle will run an extra month in order to give other solvers additional opportunity to reach a solution.

Hint: when constructing radars, one often uses a signal known as a "chirp". This is a signal that varies its frequency linearly with time. Consider what can be done with such signals.

List of solvers:

Itsik Horovitz (30 June 16:28)

Elegant and original solutions can be submitted to the puzzlemaster at Names of solvers will be posted on this page. Notify if you don't want your name to be mentioned.

The solution will be published at the end of the month.


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