Vibrations and how they get to your ears.
Noise for airports is a blog about culture, sound, music, and technology.
You can filter the posts to see just things I wrote or made.
Updated (sometimes) by Nick Seaver.
If high frequencies are good for keeping away unruly teenagers, then low frequencies are good for keeping away hail storms. (Maybe.)
In the video, you can hear a hail cannon in action. (I kind of wish that link was a game based on hail cannons, not just a flash animation.)
See more pictures from a hail cannon supplier here.
(via nacken)
