A Minnesota Planetarium Video- Natural Radio: When solar flares hit the Earth's magnetic field, the skies at both poles can light up with auroras. The particles also create very low frequency electromagnetic waves, a type of natural radio that can be picked up around the globe. Every year sound recordist Steve McGreevy heads north where the reception is best and points his receiver at the sky. Made for use in the Planetarium dome, thus the circular frame of the images)
Produced for Minnesota Planetarium and Space Discovery Center
http://mplanetarium.org/
Produced by Joel Halvorson
NASA Earth-Sun Museum Alliance (ESMA)
http://informal.jpl.nasa.gov/museum/Earth
Stephen McGreevy, Natural Radio
http://www.auroralchorus.com/
Audio gear for listening:
http://www.auroralchorus.com/wr3gx.htm
Barrett Golding, audio
http://HearingVoices.com/
Part of NPR Lost & Found Sound series
http://www.npr.org/programs/lnfsound/
Calvin Hall, photography
http://www.alaskasaurora.com/
For the International Polar Year (IPY)
http://www.ipy.org/
