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Delicate Tire Tracks in the Snow

Seeing this early one wintry morning made me wonder if somebody had ridden away on our bikes in the dead of night:

Bike Tracks on Snowy Driveway - overview

Bike Tracks on Snowy Driveway – overview

A closer look, as seen from the garage door:

Bike Tracks on Snowy Driveway - detail

Bike Tracks on Snowy Driveway – detail

We’d gone for a ride two days earlier and, apparently, our tires deposited enough salt dust (?) on the driveway as we rolled them out of the garage to melt the light snowfall. I’m not sure I can believe that, as those same tires left no trace of our return from that same trip, when I’d expect them to carry more dust.

If it’s a thermal effect, it was produced by one brief contact with tires kept in an unheated garage and rolled over an asphalt driveway, after exposure to ambient conditions for two days.

Truly a puzzlement…

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  1. #1 by Trudi on 2015-01-04 - 12:08

    Amazing what you can observe if you keep your eyes wide open.

    • #2 by Ed on 2015-01-05 - 07:36

      And have a camera nearby: those tracks were gone within 10 minutes!

  2. #3 by Daniel B. Martin on 2015-01-04 - 15:31

    Search the area for crop circles.

  3. #4 by Jason Doege on 2015-01-04 - 22:12

    Ghosts

    • #5 by Ed on 2015-01-05 - 07:35

      Very, very thin ghosts…

      • #6 by smellsofbikes on 2015-01-05 - 15:26

        Ghost riders, in the … garage?