Owl Wing Design With Serrated Edges Reduces Aircraft, Wind Turbine Noise Pollution

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Serrated edge of owl wings makes them quieter than other birds, can help inform airfoil designs. Trailing-edge noise is the dominant source of sound from... The post Owl Wing Design With Serrated Edges Reduces Aircraft, Wind Turbine Noise Pollution appeared first on SciTechDaily.
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'Squeezed' light might produce breakthroughs in nano-sized electronics

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It's one thing to produce nanoscale devices, but it's another to study and improve on them — they're so small they can't reflect enough light to get a good look. A breakthrough might make that possible, however. UC Riverside researchers have built technology that squeezes tungsten lamp light into a 6-nanometer spot at the end of a silver nanowire. That lets scientists produce color imaging at an "unprecedented" level, rather than having to settle for molecular vibrations. The developers modified an existing "superfocusing" tool (already used to measure vibrations) to detect signals across the entire visible spectrum. Light travels in a flashlight-like conical path. When the nanowire's tip passes over an object, the system records that item's influence on the beam shape and color (including through a spectrometer). With two pieces of specrtra for every 6nm pixel, the team can create color photos of carbon nanotubes that would otherwise appear...
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The Morning After: Meta gives up on fact checking for Facebook and Instagram

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Maximizing Reach and Quality in Market Research Participation

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The new “flippening”: Bitcoin fees surpass block reward for miners

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In this Alpha exclusive, we delve into the recent explosion of Bitcoin fees due to the emergence of Ordinals and BRC-20 tokens, and the role Taproot plays in their entry to the Bitcoin blockchain. One fascinating aspect is the impact on Bitcoin's security model as block rewards diminish. For the first time since 2017, miners are being paid more than the block reward - but will this be enough to keep them incentivized in the long run? Discover the surprising consequences for miner revenue and the future of Bitcoin... The post The new “flippening”: Bitcoin fees surpass block reward for miners appeared first on CryptoSlate. http://dlvr.it/Snhvv1
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