Lifeboat Foundation

I know that this is controversial in the longevity community, but there was overwhelming agreement among the dentists I talked with that mouthwash is excellent for preventing gingivitis (one study found that it was more effective than flossing) and reducing plaque.

Are you working to extend your healthspan and lifespan? Address the most common aging teeth problems with these dentist-approved tricks.

AMD’s next-generation Radeon RX 7900 XT GPU featuring the Big Navi 31 RDNA 3 GPU could feature an insane 15360 cores in 60 WGPs.

A brand new rumor regarding AMD’s next-generation and flagship RDNA 3 GPU, the Big Navi 31, which is going to power the Radeon RX 7900 XT graphics card, has been published by Beyond3D forums (via 3DCenter). The rumor suggests that AMD is dropping a very popular GPU terminology from its RDNA 3 lineup.

AMD Radeon RX 7900 XT ‘Big Navi 31’ RDNA 3 GPU To Feature Up To 60 WGPs For A Total of 15360 Cores

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An asteroid about as long as the Great Pyramid of Giza is tall made a “close” approach with Earth on Sunday (July 25), according to NASA calculations.

There is no worry that the space rock poses any threat to Earth, but NASA monitors such rocks to both learn more about the early solar system — asteroids are rocky fragments from that time — and because if their orbits were to change, the asteroid could pose a future risk to Earth.

Improving Quality Of Life & Health, For Hundreds Of Millions Globally, Suffering Food Allergies & Intolerances — Lisa Gable, Chief Executive Officer, Food Allergy Research & Education (FARE)

Lisa Gable is the Chief Executive Officer, of Food Allergy Research & Education (FARE — https://www.foodallergy.org), an organization with a mission to improve the quality of life and the health of 85 million Americans with food allergies and food intolerances, including 32 million of those are at risk for life-threatening anaphylaxis, and to provide them hope through the promise of new treatments. To date FARE has turned over $100 million in donor gifts into ground-breaking research and has provided a voice for the community, advocating on its behalf and offering hope for a better tomorrow.

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Researchers can roughly project what autistic children’s lives will look like years down the road. But how good is their crystal ball — and what are its benefits?

DALLAS (AP) — It was the start of a steamy Friday two Augusts ago when Jason Whisler settled in for a working breakfast at the Coffee Ranch restaurant in the Texas Panhandle city of Borger. The most pressing agenda item for city officials that morning: planning for a country music concert and anniversary event.

Then Whisler’s phone rang. Borger’s computer system had been hacked.

Workers were frozen out of files. Printers spewed out demands for money. Over the next several days, residents couldn’t pay water bills, the government couldn’t process payroll, police officers couldn’t retrieve certain records. Across Texas, similar scenes played out in nearly two dozen communities hit by a cyberattack officials ultimately tied to a Russia-based criminal syndicate.

Researchers will use NASA’s upcoming James Webb Space Telescope to study Beta Pictoris, an intriguing young planetary system that sports at least two planets, a jumble of smaller, rocky bodies, and a dusty disk. Their goals include gaining a better understanding of the structures and properties of the dust to better interpret what is happening in the system. Since it’s only about 63 light-years away and chock full of dust, it appears bright in infrared light – and that means there is a lot of information for Webb to gather.

Beta Pictoris is the target of several planned Webb observing programs, including one led by Chris Stark of NASA’s Goddard Space Flight Center and two led by Christine Chen of the Space Telescope Science Institute in Baltimore, Maryland. Stark’s program will directly image the system after blocking the light of the star to gather a slew of new details about its dust. Chen’s programs will gather spectra, which spread light out like a rainbow to reveal which elements are present. All three observing programs will add critical details to what’s known about this nearby system.

Solar sails have been receiving a lot of attention lately. In part that is due to a series of high profile missions that have successfully proven the concept. It’s also in part due to the high profile Breakthrough Starshot project, which is designing a solar sail powered mission to reach Alpha Centauri. But this versatile third propulsion system isn’t only useful for far flung adventures – it has advantages closer to home as well. A new paper by engineers at UCLA defines what those advantages are, and how we might be able to best utilize them.

The literal driving force behind some solar sail projects are lasers. These concentrated beams of light are perfect to provide a pushing force against a solar sail. However, they are also useful as weapons if scaled up too much, vaporizing anything in its path. As such, one of the main design constraints for solar sail systems is around materials that can withstand a high power laser blast, yet still be light enough to not burden the craft it is attached to with extra weight.

For the missions that graduate student Ho-Ting Tung and Dr. Artur Davoyan of UCLA’s Mechanical Engineering Department envision that weight is miniscule. They expect any sailing spacecraft to weigh less than 100 grams. That 100 grams would include a sail array that measures up to 10 cm square.

Hemispherical array of ultrasound transducers lifts objects off reflective surfaces.

Researchers from Tokyo Metropolitan University have developed a new technology which allows non-contact manipulation of small objects using sound waves. They used a hemispherical array of ultrasound transducers to generate a 3D acoustic fields which stably trapped and lifted a small polystyrene ball from a reflective surface. Although their technique employs a method similar to laser trapping in biology, adaptable to a wider range of particle sizes and materials.

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