I move swiftly but do not tire. I can illuminate a dark room but am not a bulb. What am I?
Category: Science · Difficulty: medium
Hint: Consider the fundamental particle of light.
Answer
A photon of light
Explanation
A photon is a particle that carries light energy and travels quickly.
This is a medium science riddle — a moderate challenge for most people. The answer is A photon of light.
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