THE MAGAZINE FOR COMPUTER APPLICATIONS
Circuit Cellar Online offers articles illustrating creative solutions
and unique applications through complete projects, practical
tutorials, and useful design techniques.

WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 3—The electrical activity recorded over a muscle (the EMG) is often described as amplitude-modulated noise. How would you go about demodulating it?

ANSWER

Problem 4—Given a rectangular cake, my son cut a rectangular piece out and ate it. Can you tell me how I can cut the cake into two equal pieces using only one straight knife cut?

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