auroral chorus
n.— «The sounds are as mysterious as the lights themselves. Some are downright eerie, like Halloween ghost-sound-effects tapes. Others are almost familiar and comforting, similar, in fact, to the chirps of crickets or frogs. The lights also produce sounds suggesting the calls of tropical birds, whales or dolphins, which have become popular meditative-music fodder in recent years. The lull of the auroral chorus, however, is often broken up with distinctly sci-fi sounds known as whistlers—magnificent bursts of radio energy that begin in the high-frequency range and slide down to a low pitch.» —“The northern lights sing songs of love” by Chris Johns Globe and Mail (Toronto, Canada) Mar. 17, 2001. (source: Double-Tongued Dictionary)
Further reading
What kind of book do people ask for most often in prison? Romance novels? No. The Bible? No. The most requested books by far are … dictionaries! A number of volunteer organizations gather and distribute used dictionaries to help inmates with...
Twice a day the River Thames recedes, revealing a muddy shoreline. Hobbyists known as mudlarks stroll the surface searching for objects that have found their way into the river over the centuries, everything from ancient Roman jewelry to modern...