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The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol'skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth (since 1979), which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989. [1]
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 February 2025. Fear or disgust of objects with repetitive patterns of small holes or protrusions. Not to be confused with Trypanophobia. The holes in lotus seed heads elicit feelings of discomfort or repulsion in some people. Trypophobia is an aversion to the sight of repetitive patterns or clusters of ...
The Band of Holes, also known in Spanish as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill), is a series of about 5,000–6,000 man-sized holes [1] found in the Pisco Valley on the Nazca Plateau in Peru. Local people have no idea who made them or how they were used.
The Phantom of the Poles is a book written by William Reed, and published in 1906. It attempts to explain certain mysterious phenomena reported by polar explorers by postulating that the Earth is in fact hollow , with holes at its poles .
Polygons do not form at wind boundaries unless the speed differential and viscosity parameters are within certain margins and so are not present at other likely places, such as Saturn's south pole or the poles of Jupiter. Other researchers claim that lab studies exhibit vortex streets, a series of spiraling vortices not observed in Saturn's hexagon
The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.
Bates, the White House spokesperson, said of the president’s record in office: “President Biden put his unique qualification and his whole heart into delivering for the American people, and ...
Simple split-rail fence Log fence with double posts (photo taken in 1938). A split-rail fence, log fence, or buck-and-rail fence (also historically known as a Virginia, zigzag, worm, snake or snake-rail fence due to its meandering layout) is a type of fence constructed in the United States and Canada, and is made out of timber logs, usually split lengthwise into rails and typically used for ...