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How black holes can spaghettify stars that fall too close – Mashable

Spaghetti never sounded so deadly.

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Spaghettification sounds like a particularly unpleasant thing to happen to pretty much anything that isn’t a lump of pasta dough. Now imagine it happening to a star.
Thats precisely what astronomers around the world observed over a six-month period when a black hole stretched and ripped apart a star that was sucked into its intense gravitational grasp at a distance of 215 million light years from Earth, as detailed in an Oct. 12 study
published through the Royal Astronomical Society. It was t…

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Einstein’s theory of relativity, critical for GPS, seen in distant stars – Phys.org

What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common?

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What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common?
The answer is an effect from Einstein’s General Theory of Relativity called the “gravitational redshift,” where light is shifted to redder colors because of gravity. Using NASA’s Chandra X-ray Observatory, astronomers have discovered the phenomenon in two stars orbiting each other in our galaxy about 29,000 light years (200,000 trillion miles) away from Earth. While…

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Watch OSIRIS-REx take a bite out of asteroid Bennu’s surface – Yahoo Finance Australia

OSIRIS-REx became the first mission to gather samples from an asteroid after it successfully collected rocky “regolith” material from the surface of Bennu…

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New York, Oct. 22, 2020 (GLOBE NEWSWIRE) — Reportlinker.com announces the release of the report “Global Industrial Gearbox Industry” – https://www.reportlinker.com/p05798855/?utm_source=GNW null Read the full report: https://www.reportlinker.com/p05798855/?utm_source=GNW I. INTRODUCTION, METHODOLOGY & REPORT SCOPE II. EXECUTIVE SUMMARY 1\. MARKET OVERVIEW Gearbox Market to Register Steady Growth Planetary Gearbox: The Largest Segment Parallel Axis Designs to Hold Major Share of Global Market Wind…

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With innovative nanofiber membranes, cloth masks’ efficacy goes up to 99% – Phys.org

The cloth masks many are sporting these days offer some protection against COVID-19. However, they typically provide much less than the professional N95 masks used…

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The cloth masks many are sporting these days offer some protection against COVID-19. However, they typically provide much less than the professional N95 masks used by healthcare workers.
That may soon change. Recently, students from BYU’s College of Engineering teamed up with Nanos Foundation to develop a nanofiber membrane that can be sandwiched between the cloth pieces in a homemade mask.
While today’s typical cloth mask might block fewer than 50% of virus particles, the membranewhich can be made…

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