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Another view of Kilchurn castle in Scotland by photographer Alan Majchrowicz.

This really just sums up my feelings about life right now.

A monk at Bagan, Myanmar, by photographer Nuttawut Jaroenchai.

YouTuber Caitlin Doughty – Ask A Mortician tells us about the St. Francis Dam failure of 1928.

Kilchurn Castle at Loch Awe before sunrise in the Highlands of Scotland, by Land of Light Photography.

YouTuber and bird whisperer A Chick Called Albert unexpectedly found a bird in need of help while releasing some field mice.

A monsoon in Maharashtra, India, by photographer Nitin Prabhudesai.

 

Navy Seal Astronauts

Destin of SmarterEveryDay geeks out!

The Khara desert in Esfahan, Iran, by photographer Hamed Tabein.

Yes, and surprisingly well, it turns out. In explanation to the “coney-joney” effect, commenter Benjamin Hackett says,

“The beautiful coney-joney was first discussed by Hertz back in 1881 and has henceforth become known as Hertzian cone cracks. They typically occur when a hard spherical object is pressed into the surface of a brittle material. In this case, the sphere itself is made of a brittle material (glass) and is “pressed” into the steel plate when it impacts, but the same effect is present. The cone-shape is caused by the propagation of a crack. The crack begins its life as a ring just outside of the region that’s in contact with the plate, where the tensile stresses (the kind that pull a crack open) are at their highest. The crack generally then grows orthogonally away from the surface for a short distance before turning and heading away at a coney-joney angle. The path followed is one that maximizes the release of stored strain energy (the same sort of energy that is stored when you pull back a rubber band). The maximal strain energy releasing path is ultimately guided by the local magnitude of the stress fields (similar in concept to the gradient of the pressure levels in the glass upon impact) near the leading edge of the crack. All in all, for spherical contact such as this, the stress fields basically say to the crack, go be a cone, it’s the best release. Source: PhD in this area”

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