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כתבות אחרונות מאתר 'Phys'
Phys

Miniaturized laser technology paves the way for fundamental physics experiments in space‎

An international team of researchers has succeeded in producing atomic quantum gas mixtures with an unprecedented particle flux. In the journal Nature Communications, the scientists report on experiments conducted with the MAIUS-B apparatus, in which Bose–Einstein condensates (BECs) consisting of two different atomic species—rubidium and potassium—were generated and studied under microgravity conditions in the Einstein Elevator at Leibniz University Hannover in Germany.

02:54
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Phys

One of the world's only two complete dodo skulls reveals new clues about the extinct bird‎

Only two complete dodo skulls are known to exist anywhere in the world: one at the Natural History Museum Denmark and one at the Oxford University Museum of Natural History. The specimen housed in Copenhagen has been preserved in the museum's collections for centuries and has now contributed to an international study led by researchers at the University of Lethbridge in Canada investigating a question that has puzzled researchers for generations: How did the dodo experience the world around it?

02:28
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Phys

Air-stable, ultrathin superconductors developed for more scalable quantum devices‎

Super-thin superconducting materials, which are only one or a few atoms thick, have unique properties scientists can leverage to produce more compact, scalable, and efficient quantum devices. But these fragile materials degrade so rapidly in air that they are difficult to study or manufacture.

02:07
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Phys

Long-term study suggests landfill methane emissions are far higher than estimates‎

Methane is an especially potent greenhouse gas, causing much more warming than carbon dioxide on a unit-for-unit basis—and a new, uniquely long-term study of emissions at a New Jersey landfill suggests that estimates of methane pollution in the U.S. and elsewhere may be dramatically off. The study, published by researchers at Columbia University's Lamont-Doherty Earth Observatory, which is part of the Columbia Climate School, used continuous ground-based measurements to determine that landfill methane emissions are likely much higher than current estimates.

01:42
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Phys

Experimental drug turns cancer's favorite fuel against it‎

Cancer cells have a voracious appetite for sugar—using it to fuel their rapid growth. This is why many scientists have tried to develop drugs that block cancer cells' metabolism by cutting off their sugar supply.

01:25
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Phys

We can help frogs beat a deadly disease. But can they still reproduce?‎

Many people are blissfully unaware that the world's frogs and amphibians are fighting their own deadly pandemic. In fact, this fungal disease—chytridiomycosis, or chytrid for short—is the worst wildlife disease on record.

01:25
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Phys

Damaging coastal storm conditions have become twice as frequent at a New Jersey Beach since 1979‎

Storm conditions capable of causing major coastal erosion at New Jersey's North Beach on Sandy Hook are occurring about twice as often as they did in 1979, according to Rutgers researchers. The finding offers new evidence that storm impacts are becoming more frequent along the Mid-Atlantic coast.

01:01
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Phys

Laser scanning may help prevent urban trees from falling‎

For the first time, a group of biologists and engineers from the University of São Paulo (USP) in Brazil applied LiDAR (light detection and ranging) technology to investigate the health of trees and optimize pruning with the aim of reducing the risk of trees falling. This laser-sensing technology creates a "point cloud," a kind of 3D digital mold consisting of millions of coordinates that reproduces the plant's exact architecture in a computer.

00:48
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Phys

Electrostatic nanocorral offers new control over charged excitons and quantum light‎

Researchers created an electrically tunable quantum nanoscale corral that traps charged excitons and enables precise electrical control of tiny light sources, including their brightness, color and quantum states, the team, led by Boston College physicists, reports today in Nature Nanotechnology.

00:48
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Phys

Nanowires restore key functions in aging T cells‎

For decades, scientists have accepted that the immune system naturally weakens with age. Georgia Tech biomedical engineer and Carl Ring Family Professor Ankur Singh wasn't convinced. Then the COVID-19 pandemic made the stakes impossible to ignore.

00:34
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