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

The French presented a manned drone with turbojet engines

The French company Zapata presented a high-speed manned drone with ten turbojet engines. She also showed a recording of flight tests, during which the drone not only flew in a straight line, but also turned over in a controlled manner. The drone's estimated maximum speed is 250 kilometers per hour, and its payload capacity is… Continue reading The French presented a manned drone with turbojet engines

Volunteers will look for the first reliable self-lensing event in a binary system

A new citizen science project, SuperWASP: Black Hole Hunters, has launched, in which anyone can help astronomers find the first reliable event of self-lensing of starlight by a black hole in a binary system. Participants are required to analyze star light curves obtained by the SuperWASP telescope, according to the Royal Astronomical Society website. Stellar-mass… Continue reading Volunteers will look for the first reliable self-lensing event in a binary system

An American turned to doctors about whistling in the scrotum

American doctors reported an unusual clinical case in which an elderly patient was admitted to the emergency room with complaints of shortness of breath, facial swelling and a whistling sound from the groin area. The cause was the entry of air through an unknown mechanism under the skin, into the pleural cavity, mediastinum and scrotum,… Continue reading An American turned to doctors about whistling in the scrotum

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.

Astronomers have found a candidate for a dormant neutron star in a binary system for the first time

Astronomers have discovered for the first time a dormant neutron star candidate in the short-period binary system J1255, which does not accrete material from its companion star or produce pulses of radio emission. However, the object may also turn out to be a very massive inactive white dwarf. A preprint of the work is available… Continue reading Astronomers have found a candidate for a dormant neutron star in a binary system for the first time

Quiet massive galaxies confirm suppression of star formation due to active nucleus

Astronomers have received new support for the idea that feedback from an active galactic nucleus is often responsible for the suppression of star formation in massive galaxies in both the Local and early Universe. Scientists made this conclusion while studying the properties of distant, quiet, massive galaxies in which star formation has died out. Article… Continue reading Quiet massive galaxies confirm suppression of star formation due to active nucleus

MeerKAT radio telescope finds unusually slow radio pulsar

The MeerKAT ground-based radio telescope has discovered a new radio pulsar with unique properties. PSR J0901-4046 has a rotation period of nearly 76 seconds, generates seven different types of radio pulses, and provides evidence for the existence of ultra-long-period neutron stars emitting radio waves. Article published in the magazine Nature Astronomy. Radio pulsars are rotating… Continue reading MeerKAT radio telescope finds unusually slow radio pulsar

For the first time in more than a hundred years, zoologists heard the voice of a South American toad

South American toad Rhinella festae for more than a hundred years she was considered mute. However, zoologists from Spain and Ecuador managed to hear and record the voice of the male of this species. It resembles the quiet chirping of a grasshopper. As noted in the magazine article Neotropical Biodiversitythe discovery will help to learn… Continue reading For the first time in more than a hundred years, zoologists heard the voice of a South American toad

Georgian veterinarians rescued a bearded man who swallowed a knife

Georgian veterinarians rescued a bearded man who mistakenly swallowed a twenty-centimeter knife. Using an endoscope and manipulators, doctors were able to remove the foreign body. As noted on the Facebook page of the environmental organization Nature Conservation Georgia, the bird is now undergoing rehabilitation at the Tbilisi Zoo – and there are chances that it… Continue reading Georgian veterinarians rescued a bearded man who swallowed a knife