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UrduScientists have made discoveries about light particles known as photons that could aid the quest for fusion energy.
Tag: Waves
Spin-orbit Optical Rabi oscillations
Rabi oscillation is an important wave phenomenon in different disciplines. The wave states in the Rabi oscillations have been revealed as spin waves and orbital waves, while a Rabi wave state merging the spin and orbital angular momentum has remained elusive.
Treadmill for microswimmers allows closer look at behavior
A new acoustic microfluidic method offers opportunities to conduct experiments with swimming cells and microorganisms. With it, ultrasonic waves like those used for imaging are able to hold a cell’s body in place without affecting the way it swims.
Controlling Sloshing Motions in Sea-Based Fish Farming Cages Improves Fish Welfare
Sea-based fish farming systems using net pens are hard on the environment and fish. A closed cage can improve fish welfare, but seawater must be continuously circulated through the cage. However, waves can cause the water to slosh inside the cage, creating violent motions and endangering the cage and fish. A study using a scale-model containment system is reported in Physics of Fluids and shows why violent sloshing motions arise and how to minimize them.
Big Differences in How Coral Reef Fish Larvae are Dispersed
How the larvae of colorful clownfish that live among coral reefs in the Philippines are dispersed varies widely, depending on the year and seasons – a Rutgers-led finding that could help scientists improve conservation of species. Right after most coral reef fish hatch, they join a swirling sea of plankton as tiny, transparent larvae. Then currents, winds and waves disperse them, frequently to different reefs.
Mangrove Trees Won’t Survive Sea-Level Rise by 2050 if Emissions Aren’t Cut
Mangrove trees – valuable coastal ecosystems found in Florida and other warm climates – won’t survive sea-level rise by 2050 if greenhouse gas emissions aren’t reduced, according to a Rutgers co-authored study in the journal Science. Mangrove forests store large amounts of carbon, help protect coastlines and provide habitat for fish and other species. Using sediment data from the last 10,000 years, an international team led by Macquarie University in Australia estimated the chances of mangrove survival based on rates of sea-level rise.
Study Shows Hydroxychloroquine’s Harmful Effects on Heart Rhythm
The malaria drug hydroxychloroquine, which has been promoted as a potential treatment for Covid-19, is known to have potentially serious effects on heart rhythms. Now, a team of researchers has used an optical mapping system to observe exactly how the drug creates serious disturbances in the electrical signals that govern heartbeat.