. Advanced laser spectroscopy exposes the unique organization of water molecules under model membrane surfaces . The behavior of water molecules as they contact biological substances has long puzzled scientists. The first few layers of interfacial water can display complex arrangements that distinctly influence biochemical reactivity and function. Mapping these interfaces, however, is extremely difficult …
Tag: פיסיקה
Powerful synchrotron captures never-before-seen electronic interactions of molecules in liquids
When molecules take the plunge into a liquid solvent, they undergo constant twists and turns as they spread out and interact within their new environment. Such haphazard movements in solvents make it difficult for scientists to measure specific reactivity changes. Especially for liquids and solutions, it is not known how intermolecular interactions affect the electronic …
The hope of meltdown – an evidence of a new state of matter
Symmetry is a fundamental concept in physics. Our ‘standard model’ of particle physics, for example, predicts that matter and anti-matter should have been created in equal amounts at the big bang, yet our existing universe is mostly matter. Such a discrepancy between the symmetry of known physical laws, and what we actually observe, are often …
Discovery of 45 rare neutron-rich isotopes provides clues to the stellar formation of heavy elements
. Many of Earth’s resources, from copper to more precious metals, are often taken for granted, but the only place to make more of these elements lies at the interior of stars. Despite this cosmological reality, however, scientists are yet to fully understand the stellar process that produces many of the heavier elements in the …
הטיפשות של אתמול, החוכמה של מחר – והאם כל מה שאינו אסור על-פי חוק טבע – אכן חייב להתקיים בעתיד
. הפיסיקה של הבלתי אפשרי. מיצ'יו קאקו. תרגום: אוריאל גבעון. יעוץ מדעי למהדורה העברית: ד"ר דני גליק. עורכת ראשית: חיה לנדא. הוצאת אריה ניר. 304 עמודים. . מדענים עוסקים, בהגדרה, בהרחבת גבולות הידע ובחיפוש אחר עובדות חדשות ותובנות חדשות על חוקיו הבסיסיים של היקום שבו אנו חיים. אבל באיזושהי דרך מוזרה, לא מעט פעמים, רבים …
Nuclear physics incorporates a 'strange' flavor
. Calculating the binding energy between hyperon particles contributes to understanding a new type of neutron star . In 2009, physicists from Japan’s KEK high-energy proton accelerator announced the sighting of a rare event: an unusually bulky beryllium nucleus that, in addition to four protons and five neutrons, contained two particles called ‘hyperons’. . Now, …
