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

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

Mirror light nuclei differed from heavy ones in the frequency of nucleon pair production

Physicists from 13 countries presented the results of a study of the relative frequency of production of short-range two-nucleon correlations in the lightest mirror nuclei containing three nucleons. The data were obtained for a certain kinematic range during electron scattering by nuclei. The collaboration found that in light nuclei, neutron-proton pairs are formed approximately twice… Continue reading Mirror light nuclei differed from heavy ones in the frequency of nucleon pair production

Astronomers have not found a dense atmosphere near a hot super-Earth

Astronomers, thanks to the TESS and Spitzer telescopes, have determined that the hot super-Earth GJ 1252b is not capable of having a dense atmosphere, even with a high initial pressure at the surface of the planet or a high carbon content in the magma. Instead, it may be surrounded only by a tenuous exosphere, replenished… Continue reading Astronomers have not found a dense atmosphere near a hot super-Earth

James Webb captures its most extensive deep sky image yet

As part of the CEERS sky survey, the James Webb Infrared Space Telescope captured its record-breaking wide-angle deep image of a patch of sky in the constellation Ursa Major. It contains a huge number of galaxies that existed at different stages in the life of the Universe, including one of the candidates for a record-distant… Continue reading James Webb captures its most extensive deep sky image yet

Simple details of mice's dreams deciphered by eye movements

Neuroscientists from the United States measured the activity of neurons in the anterodorsal nucleus of the thalamus in mice, which are involved in the control of head position, and compared them with eye movements during wakefulness and then during sleep. It turned out that the electrical activity and eye movements of sleeping and active animals… Continue reading Simple details of mice's dreams deciphered by eye movements

Oscillations of water droplets on the ISS improve understanding of wetting

American physicists studied the natural vibrations of water droplets on hydrophobic substrates in microgravity conditions. To do this, they sent the necessary materials and equipment to the ISS. By filming the vibrations of the drops on camera, the scientists were able to confirm that their previously developed theory of vibrations of free drops works well.… Continue reading Oscillations of water droplets on the ISS improve understanding of wetting

Half of the cytoplasm was taken from a living cell and its transcript was sequenced

Swiss scientists have proposed and developed a method that allows them to decipher the transcriptome of individual cells without killing them. To do this, they performed a biopsy of the cytoplasm and sequenced the resulting genetic material. Scientists have used this technique to separate different types of morphologically similar cells and describe how the expression… Continue reading Half of the cytoplasm was taken from a living cell and its transcript was sequenced

Belief in luck and predictions linked to the Human Development Index

Belief in the supernatural is widespread throughout the world, but belief in luck and fortune telling is strongest in some countries in South Asia and Eastern Europe, including Latvia, Russia, Indonesia and Singapore. And the least susceptible to such beliefs are the inhabitants of Protestant Europe. Australian scientists came to this conclusion after analyzing data… Continue reading Belief in luck and predictions linked to the Human Development Index

Physicists have found the secret to the perfect pass in American football

American physicists have built the most accurate mathematical model of ball flight for American football and rugby to date. They found that the Magnus effect and the effect of the Earth's rotation have little influence on the outcome of a spiral pass, in contrast to the initial angle between the axis of the ball and… Continue reading Physicists have found the secret to the perfect pass in American football