Check out this article from Universe Today - http://www.universetoday.com/102234/put-the-aurora-borealis-in-your-ear/ http://www.universetoday.com/102234/put-th

Check out this article from Universe Today - http://www.universetoday.com/102234/put-the-aurora-borealis-in-your-ear/ http://www.universetoday.com/102234/put-the-aurora-borealis-... Looks like a VLF receiver could give one a new way to sense natural phenomena like lightning and apparently even some mundane objects.