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Dumb Polaks for the win.

A new idea for light control for quantum engineering

17.10.2018 change 17.10.2018

  • https://doi.org/10.1038/s41567-018-0232-7). The Institute of Physics PAS in Warsaw informed about the research.

    Today`s telecommunications links, optical fibres that entwine the Earth, use light as a carrier of information. However, once the informationj reaches target devices, computers, further information processing is carried out by means of electrical signals. These signals are transmitted through wires and printed paths, and their limited capacity and speed are the bottleneck in today`s high-speed information processing equipment.

    The possibility of replacing electrical circuits and manipulating light in a manner analogous to switching electrical signals in logical memory systems and processors has fascinated scientists and engineers for a long time.

    To achieve this, we need new switching nanosystems, in which light will be the signal. A prototype of such a system has been successfully built and demonstrated by an international group of scientists, including employees of the Institute of Physics of the Polish Academy of Sciences.

    According to the institute`s press release, researchers demonstrated a new physical phenomenon - the effect of controlling the direction of light emission from a near-surface source, a quantum well, by means of an external magnetic field perpendicular to the direction of emission (TMRLE). Until now, such routing could be achieved only with less convenient magnetic field parallel to the axis of emission.

    In the future, the effect of routing light emission from light sources with nanometer sizes using a transverse magnetic field can be used to build nanophotonic logic circuits or magneto-optical memories.

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    To demonstrate the TMRLE effect, researchers used very good quality nanostructures containing a quantum well located near the surface and built of dilute magnetic semiconductor CdMnTe with barriers made of CdMgTe. The structures were grown by molecular beam epitaxy (MBE) and characterized at the Institute of Physics PAS in Warsaw.

    According to the release, TMRLE is a universal effect that can be transferred to various material platforms, including those based on semiconductors with high internal spin splitting that do not require low temperatures. "That`s why its first demonstration opens up the possibility of building both classical and quantum sources of light with temporal and spatial resolution, which is fundamental to the development of nanophotonics" - researchers summarize in the release.
 
Dumb Polaks of history.

President names new monuments to Polish history

President names new monuments to Polish history
11.12.2018 08:30
President Andrzej Duda has named 14 new monuments to Poland’s history to mark the anniversary of the country’s independence.
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Polish President Andrzej Duda. Photo: PAP/Jacek Turczyk

In a speech delivered at a gala at Warsaw’s National Theatre, Duda said Poland “has 105 monuments to history on [its] independence centenary.”

The Gdańsk shipyard, the birthplace of the anti-communist Solidarity movement, was chosen as the 100th monument.

Duda said: “The Gdańsk shipyard is the symbol of Solidarity, the struggle for freedom and the symbol of [Poland’s] revival.”

He added: “It is thanks to Solidarity members and their fight without weapons … which ended in victory that [Poles] enjoy a free, independent and self-governing country.”

Other sites listed as monuments to Polish history include the Christ the King and St. Rocco church complex in the eastern city of Białystok, the Bóbrka oil mine in southeastern Poland alongside the Dobrzyca palace and park complex in the central part of the country.

The monuments to Polish history project began in 1994. It includes sites of great cultural and historical importance for the country.
 
Polak.

Astronomers discover a new X-ray production mechanism in the stars

12.12.2018 change 12.12.2018

  • Nature Astronomy.

    Representatives of the Astronomical Observatory of the University of Warsaw explain in the press release sent to PAP the Sun and other stars in the Milky Way emit radiation in the range visible to our eyes. But astronomers know many objects that emit a significant amount of energy in the form of X-rays - this is what the new discovery concerns.

    The object of interest of scientists was the star located in the Small Magellanic Cloud, in the neighbouring galaxy approx. 200,000 light years from the Milky Way. This area of the sky has been regularly studied for over a dozen years by astronomers from the OGLE team from the Astronomical Observatory of the University of Warsaw. The studied object is in fact a binary system - a red giant and a white dwarf (a cataclysmic system). It is called ASASSN-16oh, and its burst was observed in December 2016. Photometric observations showed that the star brightened several dozen times.

    To determine what caused the ASASSN-16oh brightening, astronomers pointed orbital X-ray observatories Swift and Chandra at this object. They noticed that the star emitted large amounts of X-rays, which must have been generated in matter at a temperature of nearly a million degrees.

    Supersoft X-ray emission - lowest energy X-rays generated in very hot matter, with a temperature of several hundred thousand degrees - has long been considered a result of nuclear fusion on the surface of a white dwarf, a small, burnt star that attracts fresh fuel (hydrogen gas) from its neighbours. When enough gas is accumulated and it becomes hot enough, a thermonuclear reaction chain begins in it and the entire surface of the star explodes.

    But that is inconsistent with observations of astronomers: they exclude such a violent explosion. X-ray emission comes from a small fragment of the white dwarf`s surface.

    Scientists believe that X-rays were generated as a result of accretion - the process of accumulation of matter on the surface of the white dwarf. ASASSN-16oh is actually a binary system - a red giant and a white dwarf. Because the flow of matter from one star to another is not stable, when the gas starts flowing more quickly, the brightness of the whole system dramatically increases.

    According to the representatives of the Astronomical Observatory of the University of Warsaw, the discovery shows that in nature there are two types of supersoft X-ray sources: thermonuclear fusion reactions and accretion.

    This is important information not only for astronomers studying x-ray sources in space; it can also contribute to a better understanding of the expansion of the Universe. Type Ia supernovae are used in measurements of the expansion of the Universe. Their radiation power is believed to be constant: by measuring the observed supernova brightness, distance to the parent galaxy can be measured.

    Scientists believe that type Ia supernovae are formed as a result of white dwarf explosions, but the mechanism and origin of explosion are not well understood and it is not known whether the supernovae formed in the oldest galaxies look the same as the more recent ones. The discovery published in Nature Astronomy shows that the white dwarf-red giant systems similar to ASASSN-16oh may become type Ia supernovae in the future.
 
Polak of the day.

No Cookies | The Mercury

Hero civilian fifth victim of Strasbourg Christmas market attack
Staff writer, AFP, News Corp Australia Network
December 16, 2018 5:58pm
Ads by Kiosked

A fifth victim wounded during an attack at a Christmas market in the French city of Strasbourg has died, authorities and relatives said.

The prosecutor’s office confirmed on Sunday (local time) that a Polish national had died after being injured by Cherif Chekatt in Tuesday’s rampage.

“My brother Barto Pedro Orent-Niedzielski has just passed away. He thanks you for the love and strength you have given him,” the brother of the 36-year-old victim from the Polish city of Katowice wrote on Facebook.

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Strasbourg attack victim, Barto Pedro Orent-Niedzielski, 36. Picture: Facebook
Chekatt, 29, attacked Christmas market shoppers armed with a gun and a knife, before being killed by police two days later.

Orent-Niedzielski and his Italian friend Antonio Megalizzi had tried to stop Chekatt from entering a bar during Tuesday’s assault, a close friend told AFP.
 
Dumb Polaks so anti-Semitic.

Underground hideout for Jewish tailor discovered on Polish farm


MainAll NewsEuropeUnderground hideout for Jewish tailor discovered on Polish farm


Underground hideout for Jewish tailor discovered on Polish farm

Site uncovered near Warsaw where farm owners hid their Jewish neighbor during World War 2.

JTA, 23/12/18 17:48
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Holocaust memorial in Warsaw, Poland
צילום: iStock
In an old barn in Otwock, near Warsaw, an underground hiding-place was discovered, in which during World War II the owners of the farm hid their neighbor, a Jewish tailor.

The hideout probably will be moved to the Polish History Museum, according to local reports.


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The hideout is located under the barn floor. It is 6 feet and 6 inches long and 4 feet 9 inches wide. It was discovered when the area was being cleared for the construction of a new road.

The owners of the farm were Sabina and Aleksander Smolarek, who during World War II hid Moshe Bajtel from the Nazis at their home. Bajtel escaped from the Nazi camp Treblinka and went to the home of his friends the Smolareks. He hid there until the end of the war, though it was originally believed that he hid only in their attic. The Smolareks were named Righteous Among the Nations from Jerusalem’s Yad Vashem Holocaust memorial in 2004, one of some 7,000 Poles to have received this designation.

Poland’s Institute of National Remembrance has shown an interest in the hideout. Its film crew documented its uncovering before its disassembly. Information about the find already has been sent to the Polish History Museum, which collects artifacts for the emerging permanent exhibitions in its new building.
 
Dumb Polaks away into the Clouds.

Scientists want to patent the use of fungus from the Białowieża Forest in combating cancer

04.01.2019 change 04.01.2019

  • ©
Scientists want to patent the use of fungus from the Białowieża Forest in combating cancer
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Photo: Fotolia
Researchers from the Medical University of Bialystok and the Bialystok University of Technology, who researched the application of fungi found in the Białowieża Forest in the treatment of cancer, filed a patent application concerning the use of Heterobasidion annosum in combating colorectal cancer.

The researchers announced the creation of a bank of extracts of over 150 fungi found in the Białowieża Forest and joint research in the beginning of 2018. The bank of fungal extracts is located in the Science and Research Centre of the Faculty of Forestry of the Bialystok University of Technology in Hajnówka, and the research concerns fungi growing on dead wood or live trees.

As part of their research, scientists from the Medical University of Bialystok studied the properties of Heterobasidion annosum. "The patent application concerns the new use of this fungus that allows to inhibit the development of colorectal cancer cells" - says Prof. Halina Car, head Experimental Pharmacology Department of the Medical University of Bialystok.

According to Car, this fungus is common in the European climate, and very common in the Białowieża Forest. Heterobasidion annosum causes white rot of wood that destroys pine forests.

Already during the research on this fungus, Car emphasized that it had "spectacular results". The properties of Heterobasidion annosum were first tested on physiological cells and colon cancer cells grown in a lab, and then on laboratory mice.

"Our research carried out on cell lines showed that cancer cells died in comparison to those that did not receive the fungus extract" - said Car. She also emphasised that only small, virtually irrelevant toxic changes affected healthy cells. "This is very important, because anti-cancer drugs usually also destroy healthy cells and are very toxic. The idea was to find a less toxic alternative" - the professor said.

In her opinion, obtaining a patent "is a very long procedure". "We filed an application this year, we expect confirmation at the earliest in five years" - said Car.

Currently, four drugs based on fungal compounds with anticancer potential are registered in the world.
 
Dumb Polaks at it again.

Arak: Polish programmers are as good as those from big corporations

Arak: Polish programmers are as good as those from big corporations
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Photo: Fotolia
Poland cannot compete financially with tech giants in the production of autonomous cars, but the control software developed by our IT specialists is just as good, says head of the Polish Economic Institute Piotr Arak.

"Our programmers create algorithms that enable self-driving cars to move safely on the roads. Thanks to these algorithms, sensors are created that enable recognition of other vehicles, pedestrians on the road or weather conditions" - he says.
 
Polaks keep losing.

Polish contribution to the construction of a quantum computer

24.05.2019 change 24.05.2019
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Polish contribution to the construction of a quantum computer
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Source: Foundation for Polish Science
Quantum computer will allow to instantly find the information you need in huge amounts of data and enable complex simulations. Scientists from around the world are working on such a device. In a project led by Prof. Marka Kuś, Polish physicists and IT specialists optimise the calculations performed by qubits, the basic units of the quantum computer.

Unlike traditional computers, a quantum computer will be able to perform many operations at the same time, which will significantly reduce the time of solving difficult calculation problems, and thus allow to attempt to solve them at all. According to Prof. Marek Kuś, this technology will certainly find application in life sciences, medicine and the pharmaceutical industry, where it will be used to discover new drugs. Another sector awaiting the creation of quantum computers is banking and the entire financial sector, which will benefit from the possibility of perfect simulations of the stock exchange`s behaviour.

In today`s computers, data is stored in a binary system, that is, sequences of bits, each of which is in one of two states: 0 or 1. Groups of such bits are transferred between different components of one computer or between different computers in a network. A classic computer performs operations in a specific order, one by one, and is unable to perform several operations simultaneously. The more complex the task, the longer it takes to search for solutions, and the computing power of classical computers is simply insufficient to solve many of today`s problems.

SECONDS INSTEAD OF YEARS

In quantum computers, information is stored in qubits (quantum bits). Characterisation and optimisation of quantum calculations performed by qubits is a task of Polish scientists. They received an over PLN 17 million grant from the Foundation for Polish Science for the implementation of the TEM-NET project. The project leader is the Center for Theoretical Physics PAS in Warsaw. The scientific consortium members will also include the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University and the Institute of Theoretical and Applied Informatics PAS in Gliwice.
 
Polaks for the fail.

Physicist from the University of Warsaw wins the Humboldt Research Award

Physicist from the University of Warsaw wins the Humboldt Research Award
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Photo: Fotolia
Prof. Jerzy Lewandowski from the University of Warsaw was granted the German Humboldt Research Award for internationally renowned scientists and scholars who work outside of Germany, announced the University of Warsaw.

The Humboldt Research Award is awarded by the Alexander von Humboldt Foundation of Germany. One of the main goals of the award is to support international cooperation of scientists. Every year, approx. one hundred winners are selected - researchers who have made a significant contribution to the development of their scientific disciplines and who are expected to create further innovative solutions.

The latest list of laureates includes Prof. Jerzy Lewandowski from the Faculty of Physics, University of Warsaw. His scientific interests include geometric theory of black holes and gravitational waves in space-time as well as general theory of relativity. He is the author of numerous scientific publications, and since 2016 a member of the International Society on General Relativity and Gravitation. Currently, Prof. Lewandowski is the head of Department of Theory of Relativity and Gravity at the Institute of Theoretical Physics.
 
Dumb, dumb Polaks.

Rzeszow University of Technology students win gold in aviation competition in the USA

26.03.2019 change 26.03.2019
This text can be copied
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Rzeszow University of Technology students win gold in aviation competition in the USA
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Photo: EUROAVIA Rzeszów
Students of the Rzeszow University of Technology won a gold medal at SAE Aero Design East 2019 in the USA. This is the first ever gold medal for the science club EUROAVIA Rzeszów, awarded for technical presentation in the Micro class, reports the university spokeswoman Katarzyna Kadaj-Kuca.

A record number of 85 teams from around the world took part in the event in Fort Worth, Texas. The task of participants was to design, optimise and build a lifting aircraft. They competed in three classes: Micro, Regular and Advance.

The Rzeszow University of Technology was represented by members of the science club EUROAVIA Rzeszów at the Department of Avionics and Control Systems of the Faculty of Mechanical Engineering and Aeronautics. They competed in Micro and Regular classes and won gold for the technical presentation of their model in the Micro class.

"Our aircraft gained recognition among Lockheed Martin specialists. The jury appreciated the ingenuity and innovation of the construction solutions used in our model" - revealed Aleksandra Pasich from EUROAVIA Rzeszów, aviation and astronautics student.
 
Polaks for the fail.

Physicist from the University of Warsaw wins the Humboldt Research Award

Physicist from the University of Warsaw wins the Humboldt Research Award
32509467_32509463_0.jpg
Photo: Fotolia
Prof. Jerzy Lewandowski from the University of Warsaw was granted the German Humboldt Research Award for internationally renowned scientists and scholars who work outside of Germany, announced the University of Warsaw.

The Humboldt Research Award is awarded by the Alexander von Humboldt Foundation of Germany. One of the main goals of the award is to support international cooperation of scientists. Every year, approx. one hundred winners are selected - researchers who have made a significant contribution to the development of their scientific disciplines and who are expected to create further innovative solutions.

The latest list of laureates includes Prof. Jerzy Lewandowski from the Faculty of Physics, University of Warsaw. His scientific interests include geometric theory of black holes and gravitational waves in space-time as well as general theory of relativity. He is the author of numerous scientific publications, and since 2016 a member of the International Society on General Relativity and Gravitation. Currently, Prof. Lewandowski is the head of Department of Theory of Relativity and Gravity at the Institute of Theoretical Physics.


no doubt, Lewandowski has a jewish maternal great great grandfather---
bless his little polack heart
 

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