On a very, very cold night, shot over the top of a neighbourrsquo;s house, one can see the way the furnace exhaust is flat out from the strong breeze.br/ Melville, Saskatchewanbr/ On 2010 February 15, using a Canon 50D with a Sigma 18-250-zoom lens at 90 mm, ISO 500 at f/5.6 for 4 seconds; processed with Adobe Lightroom.