Question
The factor of $10^{-12}$ in the range of intensities to which the ear can respond, from threshold to that causing damage after brief exposure, is truly remarkable. If you could measure distances over the same range with a single instrument and the smallest distance you could measure was 1 mm, what would the largest be?

$1 \times 10^6 \textrm{ km}$

This equivalent to measuring the distance around the Earth 25 times.

Solution Video