The Sound So Loud That It Circled the Earth Four Times
Nice. I hadn't thought of there being a limit (due to vacuum) to sound intensity.<p>Reminds me of this recent comment on reddit: <a href="http://np.reddit.com/r/space/comments/2h9y9g/the_first_launch_from_cape_canaveral_1950/ckr6mev" rel="nofollow">http://np.reddit.com/r/space/comments/2h9y9g/the_first_launc...</a><p>"the Saturn V rocket produced a SWL (Sound Power Level) of about 220 decibels, which is sufficient to melt concrete nearby and set grass aflame a mile away,"