{"id":4316,"date":"2011-07-15T14:00:21","date_gmt":"2011-07-15T21:00:21","guid":{"rendered":"http:\/\/lee.org\/blog\/?p=4316"},"modified":"2023-08-26T11:24:28","modified_gmt":"2023-08-26T18:24:28","slug":"solarworld","status":"publish","type":"post","link":"https:\/\/www.lee.org\/blog\/2011\/07\/15\/solarworld\/","title":{"rendered":"Poor Design Workshop: SolarWorld"},"content":{"rendered":"

Welcome to another edition of Poor Design Workshop<\/a>!<\/p>\n

\"\"<\/a>I saw this poster in the BART yesterday.<\/p>\n

It’s kind of a nice poster… until you actually read it.<\/p>\n

It’s time to put the sun to work
\nPower from the sun
\n400 000 000 000 000 000 000
\nkilowatts per second
\nAmerica’s largest solar manufacturer since 1975
\nSolarWorld<\/p><\/blockquote>\n

First, “kilowatts per second” is a non sequitur<\/strong> here. (reference<\/a>) Though granted there is often confusion about terms like this. Try to think of it this way: kilowatts is a rate, like “miles per hour”. You don’t say “He was driving at 55 miles per hour per second<\/em>“… because, well, that’s stupid. Similarly, a 60 watt light bulb uses 60 watts, not 60 watts per second. With electricity, \u00a01 Watt is equal to 1 Joule per second.It’s kind of OK for a layman to make this mistake, but not so much for America\u2019s largest solar manufacturer since 1975.<\/p>\n

Ok, let’s just sweep the “per second” thing under the rug and look at that big number with all the pretty zeros. “400,000,000,000,000,000,000 kilowatts” = 4.0 x 1023<\/sup> watts. Let’s assume they meant to say that the earth is being hit by 4.0 x 1023<\/sup> watts of energy from the sun. The trouble is, if that were true, our planet would boil off into the vast nothingness of space in minutes<\/strong>. In actuality, the earth catches 1.8 x 1017<\/sup> watts (reference<\/a>) from the sun. Their number is off by 6 orders of magnitude… a million times!!!<\/p>\n

Ok, maybe that big number isn’t supposed to represent how much power that hits the earth, maybe they were talking about how much power the sun generates in its totality. Yeah, maybe instead of my small minded approach of erecting earth-bound solar panels, they are talking about enveloping the sun in solar panels or maybe putting it in a big bucket of water to make steam and drive a turbine. Uh huh. Ok, let’s do the numbers… Oop! Wrong again!<\/strong> The sun generates 3.7 x 1026<\/sup> watts (reference<\/a>, and<\/a>), which is only 3 orders of magnitude different from their 4.0 x 1023<\/sup> quote, but still waaaay off. Now \u00a0our planet is cast into an eternally bleak cold night freeze<\/strong>. Did you see the 2007 intense science fiction thriller Sunshine<\/a>? It was pretty awesome, riveting and haunting; my mind still conjures up images from the movie; it is definitely worth seeing and it is just like the dark world the SolarWorld people apparently live in.<\/p>\n

All this goodness from “America’s largest solar manufacturer since 1975”. Nice.<\/p>\n","protected":false},"excerpt":{"rendered":"

Welcome to another edition of Poor Design Workshop! I saw this poster in the BART yesterday. It’s kind of a nice poster… until you actually read it. It’s time to put the sun to work Power from the sun 400 000 000 000 000 000 000 kilowatts per second America’s largest solar manufacturer since 1975 […]<\/p>\n","protected":false},"author":1,"featured_media":4317,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-4316","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-poor-design-workshop"],"_links":{"self":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts\/4316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/comments?post=4316"}],"version-history":[{"count":3,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts\/4316\/revisions"}],"predecessor-version":[{"id":10157,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts\/4316\/revisions\/10157"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/media\/4317"}],"wp:attachment":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/media?parent=4316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/categories?post=4316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/tags?post=4316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}