מדע

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 …

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. Plants produce a wide variety of metabolites from inorganic compounds, some with useful functions including health-promoting effects. The ability to harness these metabolites by creating ‘functional plants’ that produce these compounds in large quantities could therefore be of considerable benefit to society. It is also an intriguing research topic for plant scientists. Progress in …

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. 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 …

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. 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 …

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. 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, …

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. Sensory experience changes the way humans see the world during early postnatal development. Now, an international team of researchers, including Tadaharu Tsumoto from the RIKEN Brain Science Institute in Wako, may have an explanation. They report in the journal Neuron that visual experience drives the maturation of inhibitory synapses in the visual cortex during …

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