投稿時間:2024-01-18 23:05:14 RSSフィード2024-01-18 23:00分まとめ(5件)

カテゴリー	サイト名	記事タイトル	リンクURL	頻出ワード・要約等	登録日
Program	JavaScriptタグが付けられた新着投稿 - Qiita	【React】検索ボックス実装時のパフォーマンス改善案②	https://qiita.com/nakakobiz0281/items/2cf4138dadb5a1edc7b9	react,パフォーマンス,ボックス	2024-01-18 22:02:11
Program	AWSタグが付けられた新着投稿 - Qiita	EKS 1.24 から 1.28 へアップグレードしたので感想等	https://qiita.com/count3/items/ca98448e8ff902ad98dc	アップグレード,クラスタ,サービス	2024-01-18 22:32:31
Program	AWSタグが付けられた新着投稿 - Qiita	AWS-CLF (Cloud Practitioner) 合格体験記	https://qiita.com/motokooooo/items/8e4ee80a4bf65ba4af70	awsclfcloudpractitioner,awsclf,motokooooo	2024-01-18 22:19:46
海外TECH	Engadget	Scientists extract the sharpest image of a black hole yet	https://www.engadget.com/scientists-extract-the-sharpest-image-of-a-black-hole-yet-131003088.html?src=rss	Black holes are one of the most powerful forces in the universe but we had never seen one until the Event Horizon Telescope EHT team released the first image back in Now the EHT Collaboration has released the most detailed image yet of the same M black hole created with the aid of an additional telescope and independent data from that better displays the insane physics behind these supermassive objects nbsp The first image was captured in it takes a long time to process the data using eight high altitude telescopes from locations including Chile and Antarctica The complex technique required the synchronization of atomic clocks use of the Earth s rotation and processing of petabytes of RAW telescope data The result was slightly fuzzy but clearly showed the expected quot donut quot with the black hole at the center and accretion disk made of matter inhaled from nearby stars nbsp However the EHT collaboration captured another image a year later using an additional telescope in Greenland That quot significantly quot improved the image fidelity particularly in the north south direction according to the EHT One of the original platforms The Large Millimeter Telescope also gained sensitivity by using its full meter surface for the first time The teams also introduced new data analysis techniques that boosted accuracy The result is a sharper and brighter image that also clearly shows the Doppler Einstein effects that cause a black hole to appear to be brighter on one side That bright spot actually shifted to the right between the capture of the two images nbsp quot The biggest change that the brightness peak shifted around the ring is actually something we predicted when we published the first results in quot said Dr Britt Jeter from Taiwan s ASIAA quot While general relativity says the ring size should stay pretty fixed the emission from the turbulent messy accretion disk around the black hole will cause the brightest part of the ring to wobble around a common center The amount of wobble we see over time is something we can use to test our theories for the magnetic field and plasma environment around the black hole quot The new image also shows that the science behind the image technique is sound and reproduceable quot Confirmation of the ring in a completely new data set is a huge milestone for our collaboration and a strong indication that we are looking at a black hole shadow and the material orbiting around it quot said Dr Keiichi Asada from ASIAA nbsp The EHT Collaboration will continue to advance the science with new observations set for the first half of At that time scientists hope to capture multiple images to create the first quot video quot of a black hole to show its chaotic movements As before it could take several years and the participation of many scientists to get the final result nbsp This article originally appeared on Engadget at	2024-01-18 13:10:03
海外TECH	Cisco Blog	Cisco Secure Equipment Access wins “IoT Security Innovation of the Year” in the 2024 IoT Breakthrough Awards	https://feedpress.me/link/23532/16539083/cisco-secure-equipment-access-wins-iot-security-innovation-of-the-year-in-the-2024-iot-breakthrough-awards	Cisco SEA wins IoT Security Innovation of the Year for simplifying secure remote access with zero trust network access ZTNA purpose built for OT	2024-01-18 13:00:44