Mars is the second planet after Earth on which the Chandler vibration was found and measured. This was done by a team from the Jet Propulsion Laboratory, the California Institute of Technology and the Belgian Royal Observatory Chandler free oscillation is the deviation of the earth's axis of rotation relative to the rigid earth's crust. In the case of the earth, the period of the Chandler oscillation is about 433 days, during which the earth's axis of rotation at the north pole moves in an irregular circle with a diameter of about 8-10 meters. The existence of such an effect was confirmed as early as 1765 by Euler predicted, and its existence was confirmed by the astronomer Seth Carlo Chandler in the late 19th century. The free oscillation after Chandler is an example of a movement that a freely rotating body that is not a sphere experiences.
Theoretical physicists at the Lawrence Berkeley National Laboratory (LBNL) believe there is evidence for the existence of Axions having found the theoretical particles that make up the dark matter consists. In your opinion it could Axions are the source of the high-energy X-rays that surround a specific group of neutron stars.
The existence of axions has been postulated since the 1970s. According to the hypothesis, they are supposed to arise inside stars and transform into photons under the influence of a magnetic field. They are also said to produce the dark matter, which makes up 85% of the mass of the universe and whose existence has not yet been directly proven. We can only see its gravitational influence on ordinary matter.
Scientists in Japan have for the first time observed how living cells appear Magnetic fields react. Your research could prove crucial to understanding how animals, from birds to butterflies, use the Earth's magnetic field to navigate. It may also be possible to find out whether weak electromagnetic fields can affect our health.
Many animal species have the ability to Magnetoreception, so to perceive the earth's magnetic field. They use them to navigate the planet, especially long-distance hikes. However, the mechanisms behind the magnetic "sixth sense" are poorly understood. Japanese scientists from the University of Tokyo have taken a step towards a better understanding of magnetic reception. In their laboratory, they observed how living, non-genetically modified cells react to magnetic fields. The results were in the journal Proceedings of the National Academy of Sciences released. The researchers' work can help us understand how animals use magnetic fields for navigation and whether such fields can affect human health.
Chinese scientists have the world's first integrated Quantum communication network created connecting more than 700 fiber optic cables on earth to two satellites. It is over 4600 km long and connects users from Beijing to Shanghai. It is the largest such network in the world and an important step in terms of data security. Jianwei Pan, Yuao Chen and Chengzhi Peng from the University of Science and Technology in Hefei announced the results in "Nature"(http://dx.doi.org/10.1038/s41586-020-03093-8). They give hope for global, practical applications of similar communication technologies in the future.
Astronomers have found evidence of a galaxy whose light took 13,4 billion years to reach us. This is a new record that sets the current limit of the universe we know.
Philosophers and scholars have always puzzled over the beginning of time and tried to find out when everything began. It was only in the age of modern astronomy that we came close to the answer to this question. According to the most popular cosmological models, the universe began with the Big Bang, which happened about 13,8 billion years ago. But astronomers are still unsure of what the early universe looked like and call the first billion years of its existence the "dark ages". That is why they are constantly improving their scientific instruments to see even the most distant galaxies. Thanks to new research by an international team of scientists, the oldest galaxy observed to date has been identified in our universe. It is called GN-z11 bezeichnet.
Collisions between high energy protons allowed the view of unusual hyperons for the first time. They are counted among the foreign particles. They are baryons that contain at least one odd quark. Hyperons are likely to be found in the nuclei of neutron stars, so examining them could reveal a lot about the stars themselves and the environment with such extremely packed matter.
Are hyperons Hadrons, ie particles that consist of at least two quarks. Interactions between hadrons take place through strong interactions. We don't know much about the interactions between hadrons, and most of that knowledge comes from studies using protons and neutrons. The nature of the strong interactions makes them very difficult to make theoretical predictions about. It is therefore difficult to study theoretically how hadrons interact with one another. Understanding these interactions is often referred to as the "final frontier" of the Standard Model.
The NASA and her partners are working on nuclear propulsion for spacecraft. The idea for atomic rocket engines came about in the 1940s. But only now do we have the technology that will make the concept of interplanetary, nuclear-powered travel a reality.
It is very important that the ideas that the NASA works, involve the use of nuclear engines outside the earth. The vehicles are to be started with chemical fuel engines and the nuclear engine is to start only outside of low earth orbit.
The greatest challenge was and is to design a safe and lightweight nuclear drive. This is ensured by new fuels and reactors. So high are the hopes for them that NASA is even considering manned missions using atomic decay energy. "Nuclear propulsion will be very useful if we think about traveling to and from Mars in less than two years," said Jeff Sheehy, chief engineer of the Space Technology Mission Directorate. The biggest challenge is making the right progress on fuel, he adds. Such a fuel would have to withstand very high temperatures and drive conditions. The two companies NASA works with make sure they have the right fuel and reactor.
Just as the metronome sets the tempo for the musician, the fundamental space clock set the time in the universe, claim theoretical physicists in their latest publication. But if such a clock exists, then it is ticking they extremely quickly. In physics, time is usually considered the fourth dimension, but some physicists speculate that it may be the result of some physical process, like the ticking of a built-in clock. If the universe has such an elementary clock, it must strike faster than a fifth of the time per second ((10 (to 33) - one and 33 zeros in decimal notation), according to a theoretical study published in Physical Review Letters has been published. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.241301
In particle physics, small fundamental particles can achieve certain properties through interaction with other particles or fields. Particles gain mass, for example by interacting with one Higgs field, a kind of molasses that permeates the whole room. Perhaps molecules can also experience time by interacting with a similar type of field, "says physicist Martin Bojowald. This field can oscillate (sway and vibrate), and each such cycle serves as a simple" tick "- just like in ordinary, traditional clocks "says Bojowald, co-author of the study.
The Korean "artificial sun" known as KSTAR extension, is a special fusion reactor. The scientists set a new world record by keeping the plasma at ion temperatures of over 20 million degrees Celsius for 100 seconds. The previous performance of this type was more than twice as short. KSTAR extension (Acronym for Korea Superconducting Tokamak Advanced Research) is a special one Fusion reactor, which is also called the Korean artificial sun. It is a very complex machine that makes it possible to reproduce fusion reactions that take place in the stars.
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Mars is the second planet after Earth on which the Chandler vibration was found and measured. This was done by a team from the Jet Propulsion Laboratory, the California Institute of Technology and the Belgian Royal Observatory Chandler free oscillation is the deviation of the earth's axis of rotation relative to the rigid earth's crust. In the case of the earth, the period of the Chandler oscillation is about 433 days, during which the earth's axis of rotation at the north pole moves in an irregular circle with a diameter of about 8-10 meters. The existence of such an effect was confirmed as early as 1765 by Euler predicted, and its existence was confirmed by the astronomer Seth Carlo Chandler in the late 19th century. The free oscillation after Chandler is an example of a movement that a freely rotating body that is not a sphere experiences.
Axions are the source of the high-energy X-rays that surround a specific group of neutron stars.
Chinese scientists have the world's first integrated Quantum communication network created connecting more than 700 fiber optic cables on earth to two satellites. It is over 4600 km long and connects users from Beijing to Shanghai. It is the largest such network in the world and an important step in terms of data security. Jianwei Pan, Yuao Chen and Chengzhi Peng from the University of Science and Technology in Hefei announced the results in "
Astronomers have found evidence of a galaxy whose light took 13,4 billion years to reach us. This is a new record that sets the current limit of the universe we know.
Collisions between high energy protons allowed the view of unusual hyperons for the first time. They are counted among the foreign particles. They are baryons that contain at least one odd quark. Hyperons are likely to be found in the nuclei of neutron stars, so examining them could reveal a lot about the stars themselves and the environment with such extremely packed matter.
The NASA and her partners are working on nuclear propulsion for spacecraft. The idea for atomic rocket engines came about in the 1940s. But only now do we have the technology that will make the concept of interplanetary, nuclear-powered travel a reality.
they extremely quickly. In physics, time is usually considered the fourth dimension, but some physicists speculate that it may be the result of some physical process, like the ticking of a built-in clock. If the universe has such an elementary clock, it must strike faster than a fifth of the time per second ((10 (to 33) - one and 33 zeros in decimal notation), according to a theoretical study published in