Silver Lake and the Canvas Serpent
In the summer of 1855 a sea serpent began to be seen in Silver Lake beside the village of Perry, New York. The papers took it up, excursion trains ran from Buffalo and Rochester, and the Walker House hotel was full for two seasons. In 1857 the hotel burned down, and in the attic the firemen found what was left: a frame of wire and whalebone covered in canvas, with a system of ropes and a blacksmith's bellows to raise the monster off the bottom and make it breathe smoke. The proprietor, Artemus Walker, had already left town.
The Sailing Stones of Racetrack Playa
On the dry lake of Racetrack Playa in Death Valley, stones weighing up to three hundred kilograms leave furrows hundreds of metres long, sometimes parallel, sometimes turning at right angles. Since 1948 magnetic fields, hurricanes, algae and human interference had all been proposed; nobody had ever seen one move. In 2011–13 Richard and James Norris put GPS units on the stones and a weather station with time-lapse cameras beside them. On 20 December 2013 they watched it happen: after rain the playa freezes over a few millimetres thick, the ice breaks by day into floating panels, and a wind of four or five metres per second is enough for the floes to push the stones at walking pace.
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