I cycle back and forth at steady rates, powering resonant circuits. What am I?
Category: Science · Difficulty: hard
Hint: Focus on signals that repeat periodically creating rhythmic energy patterns.
Answer
An oscillating electric signal
Explanation
Oscillating signals alternate regularly powering tuners and radios, unlike steady or non-periodic phenomena.
This is a hard science riddle — a tricky one that takes a little thought. The answer is An oscillating electric signal.
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