Gravity doesn't seep into other dimensions. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Gravity does not seep into other dimensions

18.02.2018

Astrophysicists from Princeton University, using the example of the gravitational wave GW170817 recorded last August, showed that the amplitude of gravitational waves does not decrease as they propagate.

In a number of existing theories of the structure of the Universe, it is said that in addition to the three dimensions that we can observe with our own eyes, there are many others that are still inaccessible to our perception. Such measurements could explain some of the properties of dark energy and dark matter - mysterious objects responsible for accelerating the expansion of the Universe and the presence of mass in it, respectively. According to one of the theories proposed by the staff of New York University in 2000, the presence of such dimensions of space can be confirmed by a decrease in the amplitude of gravitational waves: some of them will "leak" into the fourth and other dimensions.

Within the framework of the described theory, the effect of the extinction of gravitational waves will be noticeable only at very large distances - tens of millions of light years. However, as shown by calculations of the parameters of the gravitational wave and light waves recorded on August 17, 2017 during the merger of two neutron stars in the galaxy NGC 4993, 130 million light-years from Earth, this does not happen. Accordingly, gravity does not "leak" into the fourth and other dimensions. It turns out that the theory of extra dimensions, proposed in 2000, is incorrect.

It should be noted that the results obtained by the Princeton astrophysicists do not refute many other theories suggesting the existence of a fourth and other dimensions. In particular, one of the most famous such theories, string theory, is not questioned.

<< Back: Created a hybrid of man and sheep 18.02.2018

>> Forward: High-precision measurements of the mass of the W-boson 17.02.2018

Latest news of science and technology, new electronics:

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Major risk factor for gambling addiction 07.05.2024

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Wireless speaker Samsung Music Frame HW-LS60D 06.05.2024

In the world of modern audio technology, manufacturers strive not only for impeccable sound quality, but also for combining functionality with aesthetics. One of the latest innovative steps in this direction is the new Samsung Music Frame HW-LS60D wireless speaker system, presented at the 2024 World of Samsung event. The Samsung HW-LS60D is more than just a speaker system, it's the art of frame-style sound. The combination of a 6-speaker system with Dolby Atmos support and a stylish photo frame design makes this product the perfect addition to any interior. The new Samsung Music Frame features advanced technologies including Adaptive Audio that delivers clear dialogue at any volume level, and automatic room optimization for rich audio reproduction. With support for Spotify, Tidal Hi-Fi and Bluetooth 5.2 connections, as well as smart assistant integration, this speaker is ready to satisfy your ... >>

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Random news from the Archive

Bronze Age metallurgy 06.02.2003

In southern Jordan, archaeologists have unearthed a copper-smelting factory that was engulfed in an earthquake by a landslide around 2700 BC.

The factory is perfectly preserved, almost like the houses of Pompeii. 70 premises - workshops are visible. In them, as far as one can understand, the work went according to the principle of the conveyor many centuries before Ford.

The production process began with the processing of copper ore and ended with the production of copper ingots, bronze axes, chisels and other products, up to bronze pins. It is believed that they were mainly exported.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews