Empty School with Ben Meyers

Here's an awesome "Found Music" video, produced by 17 year old Ben Meyers.

Wireless Microphone Ban by FCC

If you own or use a wireless microphone or wireless musical instrument interface, it's important to know that the FCC has banned all wireless microphones which operate in the 700 Mhz range. The ban goes into effect starting June 12, 2010.

If you're curious whether the brand of wireless mic which you own is included in the ban, you need to check the FCC website: http://www.fcc.gov/cgb/wirelessmicrophones/manufacturers.html

If your model is listed on the table, it is a 700 MHz wireless microphone and can not be used after June 12, 2010.
If you can find your manufacturer’s name and your equipment is not listed, then you may continue using your wireless microphone because it does not operate in the 700 MHz Band.

If your manufacturer is not listed, please contact the FCC for additional assistance to determine if your wireless microphone operates on the 700 MHz Band.
You can also contact the FCC’s Consumer Center for more information aboutwireless microphones or other communications issues by calling1-888-CALL-FCC (1-888-225-5322) voice1-888-TELL-FCC (1-888-835-5322) TTY1-866-418-0232 fax; or writing to:
Federal Communications Commission Consumer & Governmental Affairs Bureau Consumer Inquiries and Complaints Division 445 12th Street, SW Washington, D.C. 20554.

Links:
http://www.fcc.gov/cgb/wirelessmicrophones/
http://www.fcc.gov/cgb/wirelessmicrophones/FAQs.html

Dispersion of Sound Waves in Ice Sheets

I discovered this incredible recording of ice sheets cracking.
It was recorded with underwater microphones. The article describes how the sound waves are propogated.

Link: http://silentlistening.wordpress.com/2008/05/09/dispersion-of-sound-waves-in-ice-sheets/

Here's an updated post: http://silentlistening.wordpress.com/2010/01/17/ice-recordings-updated/