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Mathematicians may have unlocked the secret of how “stone forests” form – Ars Technica

Soluble rocks dissolve, the surrounding fluid gets heavy, and gravity pulls it downward.

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Enlarge/ The Stone Forest (Shilin) in China’s Yunnan Province may be the result of solids dissolving into liquids in the presence of gravity, producing natural convective flows.
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There are many wondrous geologic formations in nature, from Giant’s Causeway in Ireland to Castleton Tower in Utah, and the various processes by which such structures form is of longstanding interest for scientists. A team of applied mathematicians from New York University has turned its …

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Mysterious beaked whale smashes mammal diving record – BBC News

A Cuvier’s beaked whale stays under water for almost four hours, leaving scientists puzzled.

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Image copyrightDanielle Waples/Duke University
A little known, shy whale has surprised scientists by staying submerged for almost four hours.
Cuvier’s beaked whales are known for their abilities to dive deep and they average around an hour under water.
But researchers were astounded when they recorded one animal diving for three hours and 42 minutes.
They believe that it is the longest dive yet recorded for any whale and almost certainly a record for all mammals as well.
Beaked whale spec…

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Mysterious beaked whale smashes mammal diving record – Yahoo News

A Cuvier’s beaked whale stays under water for almost four hours, leaving scientists puzzled.

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A little known, shy whale has surprised scientists by staying submerged for almost four hours.
Cuvier’s beaked whales are known for their abilities to dive deep and they average around an hour under water.
But researchers were astounded when they recorded one animal diving for three hours and 42 minutes.
They believe that it is the longest dive yet recorded for any whale and almost certainly a record for all mammals as well.
Beaked whale species are a bit of mystery to scientists, spending m…

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Asteroid or space junk? Approaching object might become Earth’s mini-moon – EarthSky

A newly discovered

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Asteroid or space junk? Strange space object 2020 SO was discovered on September 17, 2020 on approach to Earth. It’ll likely be captured by Earth, briefly becoming a mini-moon. In this image, the Earth is the blue dot in the center. The moon’s orbit is the white circle. Image via Tony Dunn (@tony873004 on Twitter).
An approaching space object – labeled 2020 SO – is about to briefly become a new “mini-moon” for Earth, captured by our planet’s more powerful gravity. Orbit models show that both th…

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