Apparently there are some beaches that sing. More specifically, the sand on these beaches makes a "singing, squeaking, whistling, or barking" sound when you walk across it or run your hand over it. From Wikipedia:
On some beaches around the world, dry sand will make a singing, squeaking, whistling, or barking sound if a person scuffs or shuffles their feet with sufficient force. The phenomenon is not completely understood scientifically, but it has been found that quartz sand will do this if the grains are very well-rounded and highly spherical. It is believed by some that the sand grains must be of similar size, so the sand must be well sorted by the actions of wind and waves, and that the grains should be close to spherical and have dust-, pollution-, and organic-matter-free surfaces. The "singing" sound is then believed to be produced by shear as each layer of sand grains slides over the layer beneath it. The similarity in size, the uniformity, and the cleanness mean that grains move up and down in unison over the layer of grains below them. Even small amounts of pollution on the sand grains reduces the friction enough to silence the sand.
The sand here in San Diego definitely doesn't sing, and all the pollution we get from Tijuana guarantees it'll never make a squeak! Lake Michigan has some of the most famous singing sand. Some videos below.
People have long reported that they've heard strange clapping sounds coming from the Northern Lights. But scientists tended to ignore these reports. The people hearing the sounds were told they were imagining them, or that the sounds were coming from sources such as trees or falling ice. But now Finnish researchers at Aalto University have recorded the Aurora Borealis actually making these snapping/clapping sounds, and have confirmed (to their satisfaction) that the sounds couldn't have been coming from anywhere else. More info at space.com and at the researcher's website.
Paul Di Filippo
Paul has been paid to put weird ideas into fictional form for over thirty years, in his career as a noted science fiction writer. He has recently begun blogging on many curious topics with three fellow writers at The Inferior 4+1.
Chuck is the purveyor of News of the Weird, the syndicated column which for decades has set the gold-standard for reporting on oddities and the bizarre.
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