{"id":10524,"date":"2013-01-14T21:46:34","date_gmt":"2013-01-14T20:46:34","guid":{"rendered":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/?p=10524"},"modified":"2013-01-14T21:46:34","modified_gmt":"2013-01-14T20:46:34","slug":"why-is-the-freezing-point-of-water-32f-and-not-0f","status":"publish","type":"post","link":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/?p=10524","title":{"rendered":"Why is the freezing point of water 32F and not 0F?"},"content":{"rendered":"<p>Believe it or not, this was a question put to me by a colleague today. She had been asked by one of her children and did not know the answer. Neither did it &#8211; but I resolved to find out.<\/p>\n<p>The short answer is that\u00a0the\u00a0Dutch-German-Polish\u00a0physicist\u00a0Daniel Gabriel Fahrenheit (1686\u20131736) chose to make the zero point of his scale the stable temperature of\u00a0brine: \u00a0a mixture of\u00a0ice, water, and\u00a0ammonium chloride at a 1:1:1 ratio. The second point, at 32\u00a0degrees, was a mixture of ice and water without the ammonium chloride at a 1:1 ratio. So, now you know.<\/p>\n<p>If you&#8217;re interested in a bit more detail on how the Fahrenheit scale was constructed and evolved, you can find the information <a href=\"http:\/\/en.wikipedia.org\/wiki\/Fahrenheit\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Believe it or not, this was a question put to me by a colleague today. She had been asked by one of her children and did not know the answer. Neither did it &#8211; but I resolved to find out. The short answer is that\u00a0the\u00a0Dutch-German-Polish\u00a0physicist\u00a0Daniel Gabriel Fahrenheit (1686\u20131736) chose to make the zero point of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-10524","post","type-post","status-publish","format-standard","hentry","category-science-technology"],"_links":{"self":[{"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/posts\/10524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10524"}],"version-history":[{"count":6,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/posts\/10524\/revisions"}],"predecessor-version":[{"id":10530,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=\/wp\/v2\/posts\/10524\/revisions\/10530"}],"wp:attachment":[{"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10524"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.rogerdarlington.me.uk\/nighthawk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}