{"id":39841,"date":"2024-02-13T20:38:18","date_gmt":"2024-02-14T02:38:18","guid":{"rendered":"https:\/\/huewhite.com\/umb\/?p=39841"},"modified":"2024-02-13T20:38:18","modified_gmt":"2024-02-14T02:38:18","slug":"word-of-the-day-940","status":"publish","type":"post","link":"https:\/\/huewhite.com\/umb\/2024\/02\/13\/word-of-the-day-940\/","title":{"rendered":"Word Of The Day"},"content":{"rendered":"

Lux<\/em>:<\/p>\n

The lux<\/b>\u00a0(symbol:\u00a0lx<\/b>) is the unit of\u00a0illuminance<\/a>, or\u00a0luminous flux<\/a>\u00a0per unit area, in the\u00a0International System of Units<\/a>\u00a0(SI).\u00a0It is equal to one\u00a0lumen<\/a>\u00a0per square metre. In\u00a0photometry<\/a>, this is used as a measure of the intensity, as perceived by the human eye, of\u00a0light<\/a>\u00a0that hits or passes through a surface. It is analogous to the\u00a0radiometric<\/a>\u00a0unit\u00a0watt per square metre<\/a>, but with the power at each\u00a0wavelength<\/a>\u00a0weighted according to the\u00a0luminosity function<\/a>, a model of\u00a0human<\/a>\u00a0visual brightness perception, standardized by the CIE and\u00a0ISO<\/a>.\u00a0In English, “lux” is used as both the singular and plural form.\u00a0The word is derived from the\u00a0Latin<\/a>\u00a0word for “light”,\u00a0lux<\/a>. [Wikipedia<\/strong><\/a>]<\/em><\/p><\/blockquote>\n

Noted in “Blue eyes may be better for reading in dim light than brown eyes<\/em><\/a>,” Michael Le Page, NewScientist<\/em> (6 February 2024, paywall):<\/p>\n

After the volunteers sat in darkness for 30 seconds, the researchers gradually increased the brightness of the lighting until the participants were able to read a sequence of letters on a wall 3 metres away. Those with blue eyes needed a light level of 0.7 lux on average, compared with 0.82 lux for those with brown eyes.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Lux: The lux\u00a0(symbol:\u00a0lx) is the unit of\u00a0illuminance, or\u00a0luminous flux\u00a0per unit area, in the\u00a0International System of Units\u00a0(SI).\u00a0It is equal to one\u00a0lumen\u00a0per square metre. In\u00a0photometry, this is used as a measure of the intensity, as perceived by the human eye, of\u00a0light\u00a0that hits or passes through a surface. It is analogous to the\u00a0radiometric\u00a0unit\u00a0watt \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39841","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/39841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/comments?post=39841"}],"version-history":[{"count":1,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/39841\/revisions"}],"predecessor-version":[{"id":39842,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/39841\/revisions\/39842"}],"wp:attachment":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/media?parent=39841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/categories?post=39841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/tags?post=39841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}