Fed up with discussions about mains cables and about defending which camp you are in? Then try this 'test', just as the "blue/gold dress" provoked division, this seems to have done the same with, as yet, no audiologist being able to explain the phenomenon.

http://www.bbc.co.uk/news/blogs-trending-44136799

Curiously there is a some correlation with age, and some have reported that the angle of one's ear to the sound source (if listening on radio) can change the results.

So what do you hear and how old are you?