We live in an electromagnetic soup, bombarded by wavelengths from DC to daylight and beyond. A lot of it is of our own making, especially further up the spectrum where wavelengths are short enough ...

electromagnetic waves serve as nature's chorus, with whistler-mode chorus waves standing out as some of the most fascinating. These waves, named for their chirping sound that mimics birds at dawn ...

As soon as they have reared a brood a lot of birds stop singing, so the full chorus that International Dawn Chorus Day is timed for will not be around for long. A coot at dawn at Ham Wall (photo ...