Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-scuba-diving-086baf6acc0f

How much bigger do objects appear underwater through a mask?

About 34% bigger.

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  1. About 34% bigger ✔
  2. About 75% bigger
  3. About 10% bigger

Why: Water refraction makes objects look roughly 34% larger and 25% closer than they really are.

Huh, didn't know that: Water refraction makes objects look roughly 34% larger and 25% closer than they really are.

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Things are not always as big as they seem.
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References

Answer: About 34% bigger. Water refraction makes objects look roughly 34% larger and 25% closer than they really are.

  1. Scuba diving en.wikipedia.org/wiki/Scuba_diving
    objects appear approximately 34% bigger and 25% closer in water
    Checked 2026-11-07.

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