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A new publication in Opto-Electronic Advances overviews dynamic metasurfaces and metadevices empowered by graphene.

Metasurfaces, artificial subwavelength structured interfaces, exhibit unprecedented capabilities to manipulate electromagnetic (EM) waves ranging from visible to terahertz and microwave frequencies.

In the past decade, static metasurfaces and metadevices have been researched extensively. Due to the passive nature of building blocks in general made of metals and/or dielectrics, however, their functionalities cannot be actively tuned in situ after fabrication, which seriously impedes their application scenarios such as varifocal lens, dynamic holography, and beam steering in LiDAR. Motivated by those significant requirements, scientists have struggled for years to improve the dynamical tunability of metasurfaces, and introducing active materials or components into the passive metasurfaces has been proposed as the first thought strategy.

Breakthrough hints other cells in central nervous system, such as the brain, could be restored.

They aren’t going backward — we’re just going forward. Our orbit to the Sun makes us closer to our large adult sons.

Though Boeing may redesign the capsule’s problematic valves before a crewed flight.

With Boeing’s next Starliner crew capsule launch attempt fast approaching, the company is considering redesigning the capsule’s propulsion valves, due to issues that have so far stopped the company from launching crewed flights to the ISS and competing with SpaceX, a report from *CNBC* reveals.

Boeing is developing the Starliner spacecraft thanks to a roughly $5 billion contract it was awarded under NASA’s Commercial Crew program. The next launch attempt, called OFT-2, is scheduled for next Thursday, May 19.

Continue reading “Boeing considers redesigning problematic valve that has kept Starliner from flying NASA astronauts” »

Alpha particles are also known as alpha radiation.

Alpha particles, also known as alpha radiation, are the star players in the game of alpha decay — here’s everything you need to know.

While many other companies in the industry are focusing on designing and developing hydrogen-fueled aircraft from scratch, ZeroAvia is gearing up to test its retrofitted Dornier 228 this summer.

The company has partnered with its strategic investor, Shell, to design and build two commercial-scale mobile hydrogen refuelers for use at ZeroAvia’s research and development site in Hollister, California. At ZeroAvia’s test facility in Hollister, Shell will also provide compressed, low-carbon hydrogen supply to the facility and other locations in the Western U.S.

This strategic collaboration will support the development of ZeroAvia’s flight testing program in the U.S. following the arrival of its second Dornier 228 at Hollister last month and will advance the company’s Hydrogen Airport Refueling Ecosystem (HARE) on a larger scale.

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Here at Lifespan.io, we publish fact-checked news and deep interviews with aging researchers to help people track the development of treatments targeting aging. These treatments aim at preventing and curing age-related diseases and may improve lives of thousands of people around the globe!

Everyone deserves to know about the emerging opportunities in the field of healthy life extension research. Knowledge is empowering. In our articles and popular science videos, we discuss the progress, pros, cons, and social implications of innovative medicine for controlling aging, and the steps that are needed to accelerate its clinical implementation.

Continue reading “Learn about the Science that could one day overcome age related diseases” »