
hard to comprehend the enormity of some of those volcanoes.
( , Tue 14 Aug 2012, 15:30, Reply)

( , Tue 14 Aug 2012, 15:43, Reply)

In a handy coincidence, I think humans' perception of loudness follows the log of the actual intensity.
( , Tue 14 Aug 2012, 19:21, Reply)