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vendredi 31 juillet 2020
jeudi 30 juillet 2020
Rodrigues rail
Rodrigues rail.
The Rodrigues rail (Erythromachus leguati) was a flightless bird endemic to the Mascarene island of Rodrigues, east of Madagascar in the Indian Ocean. The rail was described as having grey plumage, a red beak and legs, and a naked red patch around the eye. The bird fed on tortoise eggs. It was described as being attracted to red objects, which humans exploited while hunting it. The Rodrigues rail is believed to have become extinct in the mid-18th century because of predation by introduced cats and destruction of its habitat by tortoise hunters. The bird was first documented from life by two contemporaneous accounts, first by François Leguat, a French Huguenot refugee marooned on Rodrigues in 1691, and then by Julien Tafforet, marooned on the island in 1726. Subfossil remains (pictured) were later discovered and connected with the old accounts in 1874, and the species was named E. leguati in Leguat's honour.
The Rodrigues rail (Erythromachus leguati) was a flightless bird endemic to the Mascarene island of Rodrigues, east of Madagascar in the Indian Ocean. The rail was described as having grey plumage, a red beak and legs, and a naked red patch around the eye. The bird fed on tortoise eggs. It was described as being attracted to red objects, which humans exploited while hunting it. The Rodrigues rail is believed to have become extinct in the mid-18th century because of predation by introduced cats and destruction of its habitat by tortoise hunters. The bird was first documented from life by two contemporaneous accounts, first by François Leguat, a French Huguenot refugee marooned on Rodrigues in 1691, and then by Julien Tafforet, marooned on the island in 1726. Subfossil remains (pictured) were later discovered and connected with the old accounts in 1874, and the species was named E. leguati in Leguat's honour.
The Economy Is in Record Decline, but Not for the Tech Giants
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Big Tech’s Backlash Is Just Starting
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Grilled by Lawmakers, Big Tech Turns Up the Gaslight
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‘This Is a New Phase’: Europe Shifts Tactics to Limit Tech’s Power
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mercredi 29 juillet 2020
Ceilings of the Natural History Museum, London
Ceilings of the Natural History Museum, London.
The decorated ceilings of the Natural History Museum in South Kensington, London, were designed by the museum's architect Alfred Waterhouse, and were unveiled at the building's opening in 1881. The ceiling of the large Central Hall (pictured) consists of 162 panels, 108 of which depict plants considered significant to the history of the museum, to the British Empire or to the museum's visitors. The remaining 54 are highly stylised decorative botanical paintings. The ceiling of the smaller North Hall consists of 36 panels, 18 of which depict plants growing in the British Isles. Both ceilings make extensive use of gilding for visual effect. Built of lath and plaster to save costs, the ceilings are unusually fragile and require extensive maintenance and restoration. Since 2016 the skeleton of a blue whale has been suspended from the ceiling of the Central Hall.
The decorated ceilings of the Natural History Museum in South Kensington, London, were designed by the museum's architect Alfred Waterhouse, and were unveiled at the building's opening in 1881. The ceiling of the large Central Hall (pictured) consists of 162 panels, 108 of which depict plants considered significant to the history of the museum, to the British Empire or to the museum's visitors. The remaining 54 are highly stylised decorative botanical paintings. The ceiling of the smaller North Hall consists of 36 panels, 18 of which depict plants growing in the British Isles. Both ceilings make extensive use of gilding for visual effect. Built of lath and plaster to save costs, the ceilings are unusually fragile and require extensive maintenance and restoration. Since 2016 the skeleton of a blue whale has been suspended from the ceiling of the Central Hall.
Lawmakers, United in Their Ire, Lash Out at Big Tech’s Leaders
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Coming up: The C.E.O.s will face lawmakers at 1 p.m.
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Big Tech’s rivals are speaking out ahead of the hearing.
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Bezos gets his first experience in the hot seat.
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There are many investigations into the tech companies. Here’s where they all stand.
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Today’s hearing has echoes of Bill Gates, 22 years ago.
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Here’s what to expect from the hearing.
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How to Fight Against Big Tech’s Power
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A Handbook to Today’s Tech Hearing
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mardi 28 juillet 2020
Eris (dwarf planet)
Eris (dwarf planet).
Eris is the second-largest known dwarf planet in the Solar System, slightly smaller by volume than the dwarf planet Pluto, although it is 27 percent more massive. Discovered in January 2005 by a team based at Palomar Observatory, it was named after Eris, the Greek goddess of strife and discord. The ninth-most-massive object directly orbiting the Sun, Eris is the largest object in the Solar System that has not been visited by a spacecraft. It is a member of a high-eccentricity population known as the scattered disk and has one known moon, Dysnomia. It is about 96 astronomical units (14.4 billion kilometres; 8.9 billion miles) from the Sun, roughly three times as far away as Pluto. Except for some long-period comets, Eris and Dysnomia were the most distant known natural objects in the Solar System until 2018 VG18 was discovered in 2018. Observations of a stellar occultation by Eris in 2010 showed that its diameter was 2,326 ± 12 kilometers (1,445.3 ± 7.5 mi).
Eris is the second-largest known dwarf planet in the Solar System, slightly smaller by volume than the dwarf planet Pluto, although it is 27 percent more massive. Discovered in January 2005 by a team based at Palomar Observatory, it was named after Eris, the Greek goddess of strife and discord. The ninth-most-massive object directly orbiting the Sun, Eris is the largest object in the Solar System that has not been visited by a spacecraft. It is a member of a high-eccentricity population known as the scattered disk and has one known moon, Dysnomia. It is about 96 astronomical units (14.4 billion kilometres; 8.9 billion miles) from the Sun, roughly three times as far away as Pluto. Except for some long-period comets, Eris and Dysnomia were the most distant known natural objects in the Solar System until 2018 VG18 was discovered in 2018. Observations of a stellar occultation by Eris in 2010 showed that its diameter was 2,326 ± 12 kilometers (1,445.3 ± 7.5 mi).
Misleading Virus Video, Pushed by the Trumps, Spreads Online
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Amazon Is Jeff Bezos
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Their Businesses Went Virtual. Then Apple Wanted a Cut.
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Amazon, Apple, Facebook and Google Prepare for Their ‘Big Tobacco Moment’
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lundi 27 juillet 2020
Elasmosaurus
Elasmosaurus.
Elasmosaurus was a large marine reptile in the order Plesiosauria. The genus lived about 80.5 million years ago, during the Late Cretaceous. The first specimen was sent to the American paleontologist Edward Drinker Cope after its discovery in 1867 near Fort Wallace, Kansas. Only one incomplete skeleton is definitely known, consisting of a fragmentary skull, the spine, and the pectoral and pelvic girdles, and a single species, E. platyurus, is recognized today. Measuring 10.3 meters (34 ft) long, the genus had a streamlined body with paddle-like limbs or flippers, a short tail, and a small, slender, triangular head. With a neck around 7.1 meters (23 ft) long, Elasmosaurus was one of the longest-necked animals to have lived, with the largest number of neck vertebrae known, 72. It probably ate small fish and marine invertebrates, seizing them with long teeth. Elasmosaurus is known from the Pierre Shale formation, which represents marine deposits from the Western Interior Seaway.
Elasmosaurus was a large marine reptile in the order Plesiosauria. The genus lived about 80.5 million years ago, during the Late Cretaceous. The first specimen was sent to the American paleontologist Edward Drinker Cope after its discovery in 1867 near Fort Wallace, Kansas. Only one incomplete skeleton is definitely known, consisting of a fragmentary skull, the spine, and the pectoral and pelvic girdles, and a single species, E. platyurus, is recognized today. Measuring 10.3 meters (34 ft) long, the genus had a streamlined body with paddle-like limbs or flippers, a short tail, and a small, slender, triangular head. With a neck around 7.1 meters (23 ft) long, Elasmosaurus was one of the longest-necked animals to have lived, with the largest number of neck vertebrae known, 72. It probably ate small fish and marine invertebrates, seizing them with long teeth. Elasmosaurus is known from the Pierre Shale formation, which represents marine deposits from the Western Interior Seaway.
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