Halley's comet on Armenian coins. Free Technical Library News

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

Halley's comet on Armenian coins

03.03.2005

Armenian astrophysicist V. Gurzadyan, together with an employee of the Museum of History of Armenia R. Vardanyan, studying a rare series of ancient copper and silver coins, discovered on the tiara of King Tigran the Great an image of a star with a crooked tail. It appears to be Halley's comet.

Tigranes the Great, who ruled from 95 to 55 BC, could see the comet when it was at perihelion. The reverse of the coins of the same series depicts a crowned goddess sitting on a stone with a palm branch in her hands, which, without a doubt, is an image of the statue of the goddess Tyche by Eutykhides, a student of the famous ancient Greek sculptor Lysippus.

As you know, Tigranes the Great conquered the Greek city of Antioch, where this giant bronze statue was located in one of the temples, in 83 BC. Thus, the time of coinage was established - after 83 BC, and the closest visit to Halley's comet took place in 87 BC.

<< Back: sea bus 03.03.2005

>> Forward: Aliens better hurry 02.03.2005

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

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, ... >>

Random news from the Archive

The world's largest chip 08.09.2019

Xilinx, one of the leading manufacturers of programmable logic (FPGA) chips, broke its own record with the release of a new chip called Virtex Ultrascale+ VU19P. The die of this chip is manufactured using 16-nm technology and has the highest density of logical cells per unit area and I / O ports. A total of 9 million programmable logical cells and 2 input-output lines are located on the chip of the new chip, the functions of which are set by the user during programming.

The FPGA monster provides a bandwidth of 1.5 Tbps over the DDR4 memory interface, and up to 4.5 Tbps over the bus, through which various types of wireless transceivers can connect to it.

"In today's electronics, there is a great need for a means of emulating and prototyping chips of complete systems-on-a-chip (SoC) and application-specific chips (ASIC)" - says Mike Thompson (Mike Thompson), one of the leaders of Xilinx, - "Given the ever-increasing complexity SoC and ASIC chips, only huge FPGA chips like the VU19P can handle this task.

According to available information, the VU19P chip is aimed at prototyping systems-on-a-chip with wireless radio interfaces. The use of FPGAs will make it possible to develop hardware and software solutions many months before systems under development for artificial intelligence, 5G communications, automotive and other industries can be embodied in silicon.

The VU19P FPGA is 1.6 times larger than its predecessor, the 440nm Virtex Ultrascale 20 chip with 5.5 million programmable logic cells. The VU440 has been the largest FPGA in the industry since it was released to the market in 2015.

When creating the VU19P, the developers faced the challenge of effectively cooling such a large device. "To solve this problem, the VU19P chip was flipped inside the package and the cooling elements can come into contact directly with the base of the silicon substrate," says Mike Thompson. According to Xilinx's plans, the Virtex Ultrascale+ VU19P chip will be available on the market by autumn 2020.

See full Archive of science and technology news, new electronics

All languages of this page

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