The sun is due to flip poles soon, but don't worry, this change in polarity is not as dire as it sounds. Apparently the switch happens every eleven years. It does cause some disturbances in the universe but few here on earth. Mainly there will be some satellite disruption and more northern lights displays.
An odd mystery from the backwoods of Nova Scotia. Hikers have come across a pond that, in one spot, has a "bubbling column of water" that frequently shoots straight up into the air like a fountain.
What's causing this? Nobody knows. Top guesses are: 1) maybe there's a leaking pipe in the pond (although this pond is in the middle of nowhere, so how did the pipe get there?); 2) it's swamp gas; 3) it's the Loch Ness Monster, or her Nova Scotia pond cousin.
The one possibility that's been ruled out is that it's a geyser, because a local geologist has pointed out that geysers require "a special volcanic activity which we haven’t had for about 200 million years in Nova Scotia." Global News has a video of the pond.
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.
Oysters will grow on almost any surface, including false teeth, if that's what happens to be available. The tooth-growing oyster shown above was found in the Chesapeake Bay in 1898, and sent to the Smithsonian where they were put on display and became quite a popular attraction. But soon a paternity battle erupted around them. From The Strand magazine, 1903:
A man from Iowa claimed the teeth, saying that he had lost them, under not wholly peculiar circumstances, from a steamer passing that way. The object was too great a curiosity to be parted with, and the difficulty of the authorities in deciding whether or not to surrender the teeth was solved by a later claim for the teeth from a Philadelphia woman, and by a third claim from someone who saw the oyster on exhibition.
Half a century later, in 1954, yet another guy insisted the teeth were his, but in this case the Smithsonian was able to definitively rule out his claim since the guy hadn't even been born yet when the teeth were found. I'm guessing the Smithsonian probably still has this famous oyster hidden away somewhere in its archives.