London (CNN Business) People are paying a lot more for food, gas, cars and services, and inflation isn’t over yet as the pandemic continues to distort the economy.So should governments consider setting the price of essential goods? It’s been done before, typically during times of crisis, but for most mainstream […]
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The majority of PPP loans went to business owners and high-earning households, a new study shows
$510 billion in loans were extended by the Payroll Protection Program in 2020.Business owners and stakeholders were the main beneficiaries of these loans, according to a new study.As a result, only 2% of those loans flowed to low-earning households, economists concluded.The Payroll Protection Program was launched in April 2020 and […]
Aldi opens its first till-free supermarket – BBC News
Aldi opens its first till-free supermarket Published 1 day ago comments Comments Image source, Aldi Aldi has opened its first checkout-free supermarket where people can shop without having to scan a product. The grocer is operating a “trial” store in Greenwich, London, which allows customers to complete their shop and […]
“Minha melhor amiga” – Pais
Home Style “Minha melhor amiga” – Pais&Filhos Style “Minha melhor amiga” – Pais&Filhos January 17, 2022 4 0 var td_screen_width = window.innerWidth; if ( td_screen_width >= 1140 ) { /* large monitors */ document.write(‘‘); (adsbygoogle = window.adsbygoogle || []).push({}); } if ( td_screen_width >= 1019 && td_screen_width < 1140 ) […]
Grávida testa positivo para Covid-19 e inova ao usar barraca transparente para comparecer ao chá de bebê – Pais
Home Style Grávida testa positivo para Covid-19 e inova ao usar barraca transparente para…Style Grávida testa positivo para Covid-19 e inova ao usar barraca transparente para comparecer ao chá de bebê – Pais&Filhos January 17, 2022 5 0 var td_screen_width = window.innerWidth; if ( td_screen_width >= 1140 ) { /* […]
79% dos brasileiros apoiam vacinação de crianças de 5 a 11 anos contra covid-19, segundo pesquisa – Pais
Home Style 79% dos brasileiros apoiam vacinação de crianças de 5 a 11 anos…Style 79% dos brasileiros apoiam vacinação de crianças de 5 a 11 anos contra covid-19, segundo pesquisa – Pais&Filhos January 17, 2022 7 0 var td_screen_width = window.innerWidth; if ( td_screen_width >= 1140 ) { /* large […]
“Já estamos conversando sobre” – Pais
Home Style “Já estamos conversando sobre” – Pais&Filhos Style “Já estamos conversando sobre” – Pais&Filhos January 17, 2022 3 0 var td_screen_width = window.innerWidth; if ( td_screen_width >= 1140 ) { /* large monitors */ document.write(‘‘); (adsbygoogle = window.adsbygoogle || []).push({}); } if ( td_screen_width >= 1019 && td_screen_width < […]
Mãe de Naiara Azevedo se surpreende pela filha ter conseguido esconder dela sobre a participação no reality – Pais
Home Style Mãe de Naiara Azevedo se surpreende pela filha ter conseguido esconder dela…Style Mãe de Naiara Azevedo se surpreende pela filha ter conseguido esconder dela sobre a participação no reality – Pais&Filhos January 17, 2022 5 0 var td_screen_width = window.innerWidth; if ( td_screen_width >= 1140 ) { /* […]
Plataformas permitem criar site ou app sem saber programação – Brasil – Estadão
Depois de muitos anos trabalhando com marketing e administração, Adriana Barbosa migrou para o ramo de imóveis.Há quatro anos, ela fundou uma imobiliária digital no Rio.Descobriu, então, que os preços de casas, apartamentos e salas comerciais em anúncios eram irreais.As transações sempre ficavam muito fora dos valores efetivamente pagos, pois […]
無限に熱くなったものはどのような色に見えるのか？
無限に熱くなったものはどのような色に見えるのか？ 色温度とは、光の色を K(ケルビン) という熱力学の温度を示す数値で表すもので、温度が高くなるにつれてオレンジ色から白、水色、と変化していきます。それをふまえて、「無限に熱いもの」を考えた時にはどのような色になるのか？という考察について数理科学の研究プロジェクト The Azimuth Project が公式ブログで解説しています。 The Color of Infinite Temperature | Azimuth https://johncarlosbaez.wordpress.com/2022/01/16/the-color-of-infinite-temperature/ 金属を高温で熱すると、赤やオレンジに光って見えるようになります。また、光をほぼ完全に吸収して反射しない 黒体 というものを想定したとき、ある温度において黒体が放射する光の波長が色として出てくることになり、それは高温になるにつれて赤からオレンジ、黄色、白と変化し、さらに高温になると水色から濃い青になるとのこと。 by Hołek この光を分析したスペクトルは、 レイリー・ジーンズの法則 に基づくとされます。この法則は、黒点が熱くなればなるほど近似値として正確なものとなるため、「無限に熱くした黒点」の色も予測できるとのこと。また、この法則によると色が温度に依存するのではなく、明るさが温度に依存して見え方に変化が起きています。 さらに、色の見え方には単純な物理学だけではなく、人間の知覚も関係します。パリの 国立高等電気通信学校 で講師を務めた デビッド・マドア 氏によると、レイリー・ジーンズの法則に対する人間の目の反応を解明することで、Windows環境でも基準となっている sRGB の色空間で想定の色温度を示すことができるそうです。 以上をふまえると、「無限に熱いものの色」はsRGBで(148,177,255)と示される以下のような色に近くなります。この色は恒星が超新星爆発して形成される典型的な 中性子星 の色であり、初期の宇宙の色でもあると解説されています。 ・関連記事 光の99.995％を吸収する素材が誕生し「黒さの世界記録」を更新、前世界1位の10倍以上の黒さ – GIGAZINE 光の98％以上を反射する「最も白い塗料」が開発される、白すぎて塗った物体が冷える – GIGAZINE あるはずのない光線が見える新たな錯視が報告される – GIGAZINE なぜ人の目は「青色」に焦点を合わせることが難しいのか？ – GIGAZINE 瞳孔のサイズは明るさだけでなく「知覚している物体の数」でも変化することが判明 – GIGAZINE […]