Chemists have found ideal conditions for the hydrogen borrowing reaction

Chemists from Russia studied the hydrogen borrowing reaction necessary for the formation of carbon-nitrogen bonds. They found that it often does not require a catalyst at all, and also developed recommendations for successfully carrying out the reaction in the laboratory. The study was published in the journal Journal of Catalysis. Organic compounds containing an NH… Continue reading Chemists have found ideal conditions for the hydrogen borrowing reaction

In Spain, a half-meter-long ancient Roman phallus was found carved on a building.

Spanish archaeologists discovered a bas-relief depiction of a phallus during excavations at El HiguerĂ³n in southern Spain. It was carved on the cornerstone of a large ancient Roman building that scientists are exploring in Nueva Carteya in the province of Cordoba, El Pais reports. Phallic symbols and images were widespread in ancient Rome. They were… Continue reading In Spain, a half-meter-long ancient Roman phallus was found carved on a building.

An ancient treasure found near Kursk was associated with a military cult

Archaeologists examined an early Iron Age treasure discovered near Kursk. It includes five items: two rare bronze bracelets, a bronze mirror, and two iron spearheads. According to scientists, the treasure was buried in the 2nd–1st centuries BC. Perhaps it is associated with a military cult or was a gift to a deceased noble warrior. The… Continue reading An ancient treasure found near Kursk was associated with a military cult

Traces of ancient people about 90 thousand years old were found in Uzbekistan

Archaeologists have discovered a large Paleolithic site, Kuksarai-2, in the Western Tien Shan. In total, they found 455 stone artifacts, some of which allowed them to hypothesize that in ancient times there was a workshop site at this site. Optical dating has shown that the age of the oldest finds is about 89.8 thousand years.… Continue reading Traces of ancient people about 90 thousand years old were found in Uzbekistan

A new sauropod from Colombia reveals the early spread of long-necked dinosaurs to South America

A new species of giant, long-necked dinosaur that lived about 175 million years ago during the Jurassic period was described in Colombia. Vertebra belonging to Perijasaurus lapaz, is the earliest and northernmost sauropod specimen discovered in South America. The find provides information about the initial diversification of sauropods at low latitudes. The study was published… Continue reading A new sauropod from Colombia reveals the early spread of long-necked dinosaurs to South America

Direct migration trajectories of dead heads indicated the presence of an internal compass

Entomologists have tracked the autumn migrations of death's-head hawk moths across the Alps. It turned out that these moths move in a straight path, adjusting the direction and altitude of their flight depending on where the wind is blowing. As noted in the magazine article ScienceThe findings indicate that death's heads have an internal compass.… Continue reading Direct migration trajectories of dead heads indicated the presence of an internal compass

American gull hatched chicks in Nizhny Novgorod

A Delaware gull native to North America has nested in Nizhny Novgorod. Her partner was a local glaucous gull, with which they bred hybrid offspring. According to the BirdGuides website, this is the second case of a Delaware gull breeding in Europe – and the first that has been documented. Birds often fly far from… Continue reading American gull hatched chicks in Nizhny Novgorod

The mathematician discovered more googols of small-vertex triangulations. Previously, only five were known

Mathematician Alexander Gaifullin from the Steklov Mathematical Institute discovered more than a googol (that is, 10100) nontrivial low-vertex triangulations of smooth manifolds; previously only five were known. A preprint with the proof is posted on arXiv.org; the Mathematical Tales channel writes briefly about it. One of the basic concepts in topology is the concept of… Continue reading The mathematician discovered more googols of small-vertex triangulations. Previously, only five were known

Searchers for artifacts from the Battle of the Ice found a sapper shovel and a tin can

Wikimedia Commons Underwater archaeologists examined the waters of Lake Peipus, where the Battle of the Ice supposedly took place in 1242. As a result of this work, they discovered about 30 metal objects. Among them were items related to fishing, as well as an engineer's shovel from the Great Patriotic War and a tin can.… Continue reading Searchers for artifacts from the Battle of the Ice found a sapper shovel and a tin can

Hummingbirds turned out to be the most colorful birds

Nine out of ten birds with the most varied colors belong to the hummingbird family. Ornithologists came to this conclusion after analyzing the colors of 114 species of hummingbirds. For example, the plumage of the crowned hyacinth contains 13.8 percent of all colors perceived by birds in the visible range. The research results were published… Continue reading Hummingbirds turned out to be the most colorful birds