RSS Materia i energia https://scienceinpoland.pl/en en Scientists find quantum solution to Euler’s classically unsolvable problem https://scienceinpoland.pl/en/news/news%2C92566%2Cscientists-find-quantum-solution-eulers-classically-unsolvable-problem.html <a href="/en/news/news%2C92566%2Cscientists-find-quantum-solution-eulers-classically-unsolvable-problem.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202206/42616329_42616320.JPG?itok=4_eGBDz3" width="280" height="155" alt="A new entangled state presented by scientists in the solution to Euler&#039;s 36 officers puzzle would assume a set of four dice entangled in such a way that observing the result of any two dice allows to predict the result of the throw with the remaining two dice. Photo: Authors&#039; materials" typeof="Image" class="img-responsive" /> </a> <br />An ‘impossible-to-solve’ problem from the 18th century has been cracked by scientists in Poland and India with the help of quantum mechanics. Mon, 20 Jun 2022 12:08:32 +0200 naukawpolsce.pap.pl 92566 at naukawpolsce.pap.pl Scientists find quantum solution to Euler’s classically unsolvable problem https://scienceinpoland.pl/en/news/news%2C92566%2Cscientists-find-quantum-solution-eulers-classically-unsolvable-problem.html <a href="/en/news/news%2C92566%2Cscientists-find-quantum-solution-eulers-classically-unsolvable-problem.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202206/42616329_42616320.JPG?itok=4_eGBDz3" width="280" height="155" alt="A new entangled state presented by scientists in the solution to Euler&#039;s 36 officers puzzle would assume a set of four dice entangled in such a way that observing the result of any two dice allows to predict the result of the throw with the remaining two dice. Photo: Authors&#039; materials" typeof="Image" class="img-responsive" /> </a> <br />An ‘impossible-to-solve’ problem from the 18th century has been cracked by scientists in Poland and India with the help of quantum mechanics. Mon, 20 Jun 2022 12:08:32 +0200 naukawpolsce.pap.pl 92566 at naukawpolsce.pap.pl ALICE shows that free charm quark has mass https://scienceinpoland.pl/en/news/news%2C92559%2Calice-shows-free-charm-quark-has-mass.html <a href="/en/news/news%2C92559%2Calice-shows-free-charm-quark-has-mass.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202206/42615693_42615687.jpg?itok=qFVaMA2c" width="280" height="155" alt="ALICE detector at CERN. Credit: Julien Ordan, CERN" typeof="Image" class="img-responsive" /> </a> <br />Do you have a problem finding out how much you really weigh, because the bathroom scale shows a slightly different result every time you step on it? Scientists from the ALICE experiment at CERN determined the mass of the charm quark - an elementary particle that weighs about half a million billion billionth part of gram and is released only for a fraction of a second at huge temperatures in the collisions of particles inside the Large Hadron Collider. Thu, 09 Jun 2022 09:00:00 +0200 naukawpolsce.pap.pl 92559 at naukawpolsce.pap.pl ALICE shows that free charm quark has mass https://scienceinpoland.pl/en/news/news%2C92559%2Calice-shows-free-charm-quark-has-mass.html <a href="/en/news/news%2C92559%2Calice-shows-free-charm-quark-has-mass.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202206/42615693_42615687.jpg?itok=qFVaMA2c" width="280" height="155" alt="ALICE detector at CERN. Credit: Julien Ordan, CERN" typeof="Image" class="img-responsive" /> </a> <br />Do you have a problem finding out how much you really weigh, because the bathroom scale shows a slightly different result every time you step on it? Scientists from the ALICE experiment at CERN determined the mass of the charm quark - an elementary particle that weighs about half a million billion billionth part of gram and is released only for a fraction of a second at huge temperatures in the collisions of particles inside the Large Hadron Collider. Thu, 09 Jun 2022 09:00:00 +0200 naukawpolsce.pap.pl 92559 at naukawpolsce.pap.pl Unexpected bubbleology https://scienceinpoland.pl/en/news/news%2C92266%2Cunexpected-bubbleology.html <a href="/en/news/news%2C92266%2Cunexpected-bubbleology.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202205/42408588_42408608.jpg?itok=ye9ou0iB" width="280" height="155" alt="Molecules in liquids are in constant motion and can flow freely. However, even a drop or bubble can create complex structures that make scientists&#039; heads spin. Photo: Grzegorz Krzyzewski" typeof="Image" class="img-responsive" /> </a> <br />Water is a fantastic liquid that has inspired scientists for centuries, and despite intensive studies of its complex nature, it still evades full understanding. When two droplets are brought together, they eventually settle into each other, merging and forming a larger, yet simpler, structure—a bigger droplet, while uniformly mixing. The same happens in foams, where tiny bubbles connect and eventually form larger bubbles. These phenomena occur because water tends to minimize its surface energy. A new study conducted by researchers from the Institute of the Physical Chemistry, Polish Academy of Sciences, led by dr. Guzowski shows how droplets, instead of merging, unexpectedly form increasingly complex structures. Let&#039;s take a closer look at their discovery.<br /> Wed, 11 May 2022 11:40:59 +0200 naukawpolsce.pap.pl 92266 at naukawpolsce.pap.pl Unexpected bubbleology https://scienceinpoland.pl/en/news/news%2C92266%2Cunexpected-bubbleology.html <a href="/en/news/news%2C92266%2Cunexpected-bubbleology.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202205/42408588_42408608.jpg?itok=ye9ou0iB" width="280" height="155" alt="Molecules in liquids are in constant motion and can flow freely. However, even a drop or bubble can create complex structures that make scientists&#039; heads spin. Photo: Grzegorz Krzyzewski" typeof="Image" class="img-responsive" /> </a> <br />Water is a fantastic liquid that has inspired scientists for centuries, and despite intensive studies of its complex nature, it still evades full understanding. When two droplets are brought together, they eventually settle into each other, merging and forming a larger, yet simpler, structure—a bigger droplet, while uniformly mixing. The same happens in foams, where tiny bubbles connect and eventually form larger bubbles. These phenomena occur because water tends to minimize its surface energy. A new study conducted by researchers from the Institute of the Physical Chemistry, Polish Academy of Sciences, led by dr. Guzowski shows how droplets, instead of merging, unexpectedly form increasingly complex structures. Let&#039;s take a closer look at their discovery.<br /> Wed, 11 May 2022 11:40:59 +0200 naukawpolsce.pap.pl 92266 at naukawpolsce.pap.pl A new window into the world of attosecond phenomena https://scienceinpoland.pl/en/news/news%2C92282%2Cnew-window-world-attosecond-phenomena.html <a href="/en/news/news%2C92282%2Cnew-window-world-attosecond-phenomena.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202205/IFJ220509b_fot01s.jpg?itok=jHjCUoBn" width="280" height="155" alt="Attosecond phenomena can be studied with free electron lasers such as SwissFEL (the photo presents its research station Alvra). X-ray chronoscopy, which analyzes the shape of laser pulses before and after interaction with the sample, can potentially provide the most accurate image of these phenomena. (Source: IFJ PAN / Paul Scherrer Institut / SwissFEL Alvra)" typeof="Image" class="img-responsive" /> </a> <br />They are everywhere, around us and within us. Phenomena lasting trillionths of a second form the core of chemistry and biology. It is only recently that we have begun to try to accurately record their actual course, with moderate success. However, physicists from Cracow have proven that the new window to the world of attophysics can be built, offering a very promising view. Wed, 11 May 2022 11:38:14 +0200 naukawpolsce.pap.pl 92282 at naukawpolsce.pap.pl A new window into the world of attosecond phenomena https://scienceinpoland.pl/en/news/news%2C92282%2Cnew-window-world-attosecond-phenomena.html <a href="/en/news/news%2C92282%2Cnew-window-world-attosecond-phenomena.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202205/IFJ220509b_fot01s.jpg?itok=jHjCUoBn" width="280" height="155" alt="Attosecond phenomena can be studied with free electron lasers such as SwissFEL (the photo presents its research station Alvra). X-ray chronoscopy, which analyzes the shape of laser pulses before and after interaction with the sample, can potentially provide the most accurate image of these phenomena. (Source: IFJ PAN / Paul Scherrer Institut / SwissFEL Alvra)" typeof="Image" class="img-responsive" /> </a> <br />They are everywhere, around us and within us. Phenomena lasting trillionths of a second form the core of chemistry and biology. It is only recently that we have begun to try to accurately record their actual course, with moderate success. However, physicists from Cracow have proven that the new window to the world of attophysics can be built, offering a very promising view. Wed, 11 May 2022 11:38:14 +0200 naukawpolsce.pap.pl 92282 at naukawpolsce.pap.pl Polish researchers recycle chemical waste into drugs https://scienceinpoland.pl/en/news/news%2C92140%2Cpolish-researchers-recycle-chemical-waste-drugs.html <a href="/en/news/news%2C92140%2Cpolish-researchers-recycle-chemical-waste-drugs.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202204/AdobeStock_233934885.jpg?itok=_n5bnzEJ" width="280" height="155" alt="Credit: Adobe Stock" typeof="Image" class="img-responsive" /> </a> <br />A powerful computer algorithm has analysed billions of possible chemical reactions and revealed how around 300 drugs can be produced from chemical compounds previously treated as industrial waste. Thu, 05 May 2022 19:45:22 +0200 naukawpolsce.pap.pl 92140 at naukawpolsce.pap.pl Krakow scientists create magnetic molecule with ‘unique properties’ https://scienceinpoland.pl/en/news/news%2C92110%2Ckrakow-scientists-create-magnetic-molecule-unique-properties.html <a href="/en/news/news%2C92110%2Ckrakow-scientists-create-magnetic-molecule-unique-properties.html" hreflang="en"><img src="/sites/default/files/styles/lista_depesz_280x155/public/202204/42294777_42294756.jpg?itok=n_i9PjtW" width="280" height="155" alt="Credit: Fotolia" typeof="Image" class="img-responsive" /> </a> <br />A quantum nanomagnet that can ‘get closer to the valued properties of large, macroscopic magnets’ has been created by scientists from the Jagiellonian University in Krakow. Wed, 04 May 2022 07:28:18 +0200 naukawpolsce.pap.pl 92110 at naukawpolsce.pap.pl