balloons

I'm seeing estimates that on the order of 21 million party balloons are sold and possibly released each day globally. Around 5 million each day in the U.S. The flight time depends on many factors, but flight time can range from an hour to weeks. With flight times measured in hours to weeks...

I saw this on my yesterday. Above Wormwood Scrubs in London, at 15:56. It's barely visible on camera but you can just about make out a dozen or so white dots that appear high in the sky, well above the height of local helicopter traffic. From my POV they didn't appear to move much in relation to...