Physicists have reproduced the chirping effect at the Kukulcan Pyramid

Colombian physicists have reproduced the unusual acoustic effect observed at the Temple of Kukulcan, located on the Yucatan Peninsula in Mexico. The echo of hand clapping at the base of the pyramid resembles the chirping or chirping of a bird. Simulations showed that this effect occurs due to the addition of many waves reflected from… Continue reading Physicists have reproduced the chirping effect at the Kukulcan Pyramid

Electrical brain stimulation improves memory in older adults

American neurophysiologists have discovered that transcranial electrical stimulation of the brain helps improve short- and long-term memory. To do this, elderly participants in the experiment were stimulated with alternating current for 20 minutes for four days in a row. Memory improvements after therapy persisted in the subjects for one month. The study was published in… Continue reading Electrical brain stimulation improves memory in older adults

Stingrays can make sounds. They clicked on the divers

Zoologists have demonstrated for the first time that wild stingrays can make sounds. The researchers made this conclusion after analyzing video recordings of stingrays Urogymnus granulatus And Pastinachus ater they clicked warningly when divers approached them. How noted in an article for a magazine Ecology Stingrays probably use clicks to scare away predators. At the… Continue reading Stingrays can make sounds. They clicked on the divers

An amateur ornithologist rediscovered a bird hidden for 124 years

Amateur ornithologist Michael Smith discovered a bird that had eluded researchers for 124 years. We are talking about the Louisiadian pitta, endemic to the inaccessible island of Rossel east of New Guinea. Smith observed the elusive birds and took several photographs. In addition, he recorded the voice of the Louisiada pitta – and posted the… Continue reading An amateur ornithologist rediscovered a bird hidden for 124 years

Lullabies and lisps have proven to be culturally universal

Representatives of 21 different cultural communities around the world communicate acoustically with babies and sing lullabies to them. This was discovered by American scientists who collected and analyzed an audio corpus of 1,615 recordings of singing and conversations addressed to young children and adults. It turned out that communication with babies has its own culturally… Continue reading Lullabies and lisps have proven to be culturally universal

Herpetologists have discovered a new species of toad on the campus of a university in Peru.

Herpetologists discovered a previously unknown species of toad on the campus of the National University of the Peruvian Amazon in Iquitos. Description of the new amphibian, which was named Rhinella unapensispublished in a magazine article Zootaxa. In addition, the authors described another species of toad from the same genus – R. angeli. It inhabits the… Continue reading Herpetologists have discovered a new species of toad on the campus of a university in Peru.

The seismograph at the DESY synchrotron heard a Rammstein concert

The Rammstein concert had an unexpectedly strong impact on the operation of the seismograph serving the PETRA III X-ray source located at the DESY research center in Hamburg. About it reported official DESY Twitter account. It is noteworthy that the seismograph did not see sound, but transverse vibrations of the soil, the cause of which… Continue reading The seismograph at the DESY synchrotron heard a Rammstein concert

Australian oyster larvae swam to the sound of click crayfish claws

Young oysters find a place to attach by sound. Australian biologists have found that the larvae of these invertebrates actively swim towards speakers that play the noise of a reef rich in life (it mainly consists of the clicking claws of click crayfish). Research results published in a journal article Journal of Applied Ecologywill help… Continue reading Australian oyster larvae swam to the sound of click crayfish claws

Archaeologists have discovered medieval whistle toys and 30 copper pools in Tver

Archaeologists, as part of security and rescue work, excavated the remains of an estate from the late 15th–16th centuries in Tver. In addition to the remains of medieval buildings, scientists discovered numerous artifacts, including 30 copper pools (change coins of the late Middle Ages), iron knives, crosses, and two toy whistles. One of these ceramic… Continue reading Archaeologists have discovered medieval whistle toys and 30 copper pools in Tver

A person who was blind since birth experienced tactile synesthesia

Researchers described a case of synesthesia in a person who was blind since birth: the man experienced tactile and spatial associations associated with numbers, letters, days of the week and months. The results of an interview with him and an experiment with a control group were published in Neuropsychology. Synesthesia is a neurobiological phenomenon in… Continue reading A person who was blind since birth experienced tactile synesthesia