SBlog

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. In modern physics, symmetries play an exceptional role. In quantum field theory, one of the most important symmetries is the so-called CPT symmetry, that is, symmetry with respect to the simultaneous replacement of all charges with opposite ones (C), the mirroring of space (P), and the reversal of the course of time (T). It is believed that only CPT-symmetric theories can be realized in nature. CPT symmetry implies many properties that particles and antiparticles must obey — for example, the equality of the masses of both...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. If in the 1960s physicists could obtain positrons, antiprotons and antineutrons, it would seem that from here one step to the synthesis of antimatter, such as antihydrogen. However, great difficulties stand in this way. To create atoms and molecules of antimatter, it is not enough to get their constituent bricks — antiparticles. These antiparticles need to be slowed down. But, most importantly, antimatter must be stored in the world, which consists of matter...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. Already in Ancient Greece, ancient thinkers wondered about the fundamental structure of matter. In the scientific fashion of those years, the Greeks were looking for primary elements. As a result of these searches, the Greeks had several completely different sets of primary elements and even the concept of atoms as an extravagant appendage...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. We used to use the prefix anti to denote opposite entities. For example, the hero and the antihero in the adventure film are irreconcilable battle. However, in the microcosm, the particle and the antiparticle are not completely opposed to each other. A particle and an antiparticle have the same mass, lifetime, spin, only the charge differs...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. Astronauts per day receive a dose of radiation 200 times more than a person on Earth. When compared with the medical x-ray study, it appears that the daily dose of radiation an astronaut — 0.6 mSv is 5-6 sessions of examination of the chest. On Earth, the natural radiation background consists mainly of gamma radiation, in space-of charged particles...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. Modern rockets — aircraft that move by throwing off the mass they carry with them — can be divided into combat and space. We must understand that this division is conditional. Combat missiles have repeatedly been used to launch satellites after a small alteration, and space rockets can be used to deliver warheads. If you answer briefly, the limit of the rocket can fly anywhere...

Random space object # 9: a nebula of complex structure Hello! You are on the channel sblog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. In addition, nanoparticles are used in theranostics — an approach in medicine that combines therapy and diagnosis. The main direction, which involved theranostics, Oncology. Suppose a cancer is hard to detect. In this case, nanoparticles will help us. When nanoparticles are injected into the body, the substandard formation accumulates them...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. What is a nanoparticle? According to the definition of metrologists, the size of a nanoobject should be less than 100 nanometers. One paradoxical example is the soap bubble. In fact, it is also a nanoobject: when we inflate the bubble, it changes color, and its walls darken, becoming almost invisible. As it has been proved by optical...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. How Apollo expeditions help study the moon The Apollo astronauts installed seismographs on the moon's surface. The Apollo 17 seismographs were supplemented with a small mortar and fired small charges, which allowed the structure to be measured to a depth of somewhere in the first hundreds of meters. Seismographs installed at this...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. Half a century ago, on July 21, 1969, Apollo 11 astronauts Neil Armstrong and Edwin Aldrin stepped onto the moon for the first time in human history. Before that, Soviet and American automatic stations flew to the earth's satellite. Today, spacecraft continue to be sent to the moon, but manned missions have ceased for many years...

Hello! You are on the channel SBlog. Thanks for reading me! Every positive and kind comment) The article is subjective and expresses the personal opinion of the author. Two hemispheres of the brain with different speed and accuracy perform different tasks — this is the laterality. The patterns of our behavior are based on structural laterality: brain regions in different hemispheres vary in size, contain more dendrites, or in principle have different structures. Laterality also manifests itself in the activation of brain areas...