Mother-in-law's knot. Tourist tips

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Mother-in-law's knot. Tourist tips

Tourist tips

Surprising but true. Some people, by tying two ropes together, somehow manage to tie the so-called "Teschin" knot, somewhat reminiscent of womanish. If at the latter the running ends come out of the knot on one side, then at the mother-in-law's knot they come out from different sides diagonally.

Rice. 24. "Teschin" knot

The "mother-in-law" knot is as insidious as the woman's (if not more). It should never be used under any circumstances. The author placed it in the book in order to show how not to tie knots. Nevertheless, from this dangerous knot you can make a beautiful knot called "herbal".

Author: Skryagin L.N.

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Termite geologists 08.11.2007

About 30 years ago, in the sands of the African Kalahari desert, geologists found a cluster of grains of sand from the mineral ilmenite. This mineral is characteristic of kimberlite rocks, and kimberlite is known to contain diamonds. Now this place is one of the richest diamond mines in the world.

But how could ilmenite get to the surface from under a thickness of sand several tens of meters? The termites took it out. When building their dwellings, these insects are forced to penetrate deep into the ground, where there is wet clay, from which they create termite mounds. "A termite mound is an exploration well turned outward," says Canadian geologist John Nore, who studies the mineralogical composition of African termite mounds.

Similar research is being carried out in Australia, in the Tanami Desert, in the north of the continent. Only one percent of the desert is not covered with sand, and a large gold deposit was found on this "patch". Drilling at random around the surrounding sands, under which there may also be valuable deposits, is too expensive.

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