趙Tumblr (3.0; @turtlescientist)http://turtlescientist.tumblr.com/<img src="http://25.media.tumblr.com/be08e4f0e3df0cd274ff4c2ab0b4bf9a/tumblr_mmlaw2Mo6M1r0i205o4_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/742fc2607c12af28f53793171bbdaa5c/tumblr_mmlaw2Mo6M1r0i205o3_500.jpg"/><br/> <br/><img src="http://24.media.tumblr.com/03a4ff953d76456092574429b3ea438e/tumblr_mmlaw2Mo6M1r0i205o2_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/2e03c6e5bf494fe9cd845598e0949116/tumblr_mmlaw2Mo6M1r0i205o5_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/5fd262faf8bbedf4f6dc9191bf9e195b/tumblr_mmlaw2Mo6M1r0i205o7_500.jpg"/><br/> <br/><img src="http://24.media.tumblr.com/d4320d7c191886da5631d9a59ff8b6cd/tumblr_mmlaw2Mo6M1r0i205o6_500.jpg"/><br/> <br/><p><a class="tumblr_blog" href="http://myampgoesto11.tumblr.com/post/50094026234/oleg-oprisco-photography" target="_blank">myampgoesto11</a>:</p> <blockquote> <p><a href="http://oprisco.com" target="_blank">Oleg Oprisco</a> Photography</p> </blockquote>http://turtlescientist.tumblr.com/post/50859837763http://turtlescientist.tumblr.com/post/50859837763Sun, 19 May 2013 16:01:05 -0700<img src="http://24.media.tumblr.com/5d1107c5bca6e4c51896883a114a49c3/tumblr_mmcxvlLv1I1r88yz9o1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://johnheartsdesign.com/post/49774076300/new-work-honesty-is-the-best-policy" target="_blank">johnhearts</a>:</p> <blockquote> <p>New work. Honesty is the best policy…</p> </blockquote>http://turtlescientist.tumblr.com/post/50850383900http://turtlescientist.tumblr.com/post/50850383900Sun, 19 May 2013 14:01:05 -0700<img src="http://25.media.tumblr.com/318e7507327eb9d3125b308669f3b0cb/tumblr_mmdmn76H1m1r47mobo3_r1_500.gif"/><br/> <br/><img src="http://25.media.tumblr.com/b471f6793177ec3e36bb8f33dcb7ff09/tumblr_mmdmn76H1m1r47mobo2_r1_500.gif"/><br/> <br/>http://turtlescientist.tumblr.com/post/50840588308http://turtlescientist.tumblr.com/post/50840588308Sun, 19 May 2013 12:01:19 -0700<img src="http://25.media.tumblr.com/fd3d9303ecc51c91112fbaf5e8d64e1d/tumblr_mfd2asqJiU1rshu5oo1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://weirdgirlwiththeblanket.tumblr.com/post/49705219011/hiddledbythebatch-i-know" target="_blank">weirdgirlwiththeblanket</a>:</p> <blockquote> <p><a class="tumblr_blog" href="http://hiddledbythebatch.tumblr.com/post/38482959577" target="_blank">hiddledbythebatch</a>:</p> <blockquote> <p><img alt="image" src="http://media.tumblr.com/tumblr_mef1zfwQel1r22lig.gif"/></p> </blockquote> <p>I know</p> </blockquote>http://turtlescientist.tumblr.com/post/50781462366http://turtlescientist.tumblr.com/post/50781462366Sat, 18 May 2013 20:00:51 -0700<img src="http://25.media.tumblr.com/ae5b8e426bc2d424a62f39c32e01a5f1/tumblr_mm2d3mLqsu1qzpsuoo1_500.png"/><br/><br/>http://turtlescientist.tumblr.com/post/50773280564http://turtlescientist.tumblr.com/post/50773280564Sat, 18 May 2013 18:01:01 -0700<img src="http://25.media.tumblr.com/3fa947b8559d9bb92485b6baef03b4c9/tumblr_mjsja6GNYr1rgko07o1_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/97230000996e83035921dd75cbf77786/tumblr_mjsja6GNYr1rgko07o2_250.gif"/><br/> <br/><img src="http://25.media.tumblr.com/935aba35af744922924fc01ea9208744/tumblr_mjsja6GNYr1rgko07o9_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/7e4298cb8438d996c84af46b93ef9a49/tumblr_mjsja6GNYr1rgko07o4_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/318b531bd4870df4f79fa5d003c4faab/tumblr_mjsja6GNYr1rgko07o5_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/7b8100ee7835f7e5e6c5f7ab4bcf7f74/tumblr_mjsja6GNYr1rgko07o6_250.gif"/><br/> <br/><img src="http://25.media.tumblr.com/a858225a171e8ec4297ea3bd82f42c60/tumblr_mjsja6GNYr1rgko07o8_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/01743b9dffa127af40cdb75a8bd3959e/tumblr_mjsja6GNYr1rgko07o7_250.gif"/><br/> <br/><img src="http://24.media.tumblr.com/cc056956d5cd2b8099682491e62c4112/tumblr_mjsja6GNYr1rgko07o3_250.gif"/><br/> <br/>http://turtlescientist.tumblr.com/post/50765484323http://turtlescientist.tumblr.com/post/50765484323Sat, 18 May 2013 16:00:58 -0700<img src="http://25.media.tumblr.com/b2d79f365138c7444d83e0abdbdaf3f1/tumblr_mlgj4qkpWy1qzzelmo1_400.gif"/><br/><br/><p><a class="tumblr_blog" href="http://prettycolors.tumblr.com/post/48281443222/pretty-colors-is-back-submit-your-own-now" target="_blank">prettycolors</a>:</p> <blockquote> <p>Pretty Colors is back! <a href="http://prettycolors.tumblr.com/add" target="_blank">Submit your own</a> now!</p> </blockquote>http://turtlescientist.tumblr.com/post/50756900698http://turtlescientist.tumblr.com/post/50756900698Sat, 18 May 2013 14:00:57 -0700<img src="http://24.media.tumblr.com/122cdb869bfc28562582046660662062/tumblr_mkzw68QeSJ1qz8uvvo1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://paris2london.tumblr.com/post/47643869332" target="_blank">paris2london</a>:</p> <blockquote> <p>This just looks amazing. </p> </blockquote>http://turtlescientist.tumblr.com/post/50748262171http://turtlescientist.tumblr.com/post/50748262171Sat, 18 May 2013 12:01:08 -0700<img src="http://25.media.tumblr.com/3cef0252d2f6c766df44c9aae5bb22bd/tumblr_ml06lhZxTU1qh9qk0o1_r1_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/54c02df8e8fed24f511d096ce655b68a/tumblr_ml06lhZxTU1qh9qk0o2_r1_500.jpg"/><br/> <br/><p><a class="tumblr_blog" href="http://wnycradiolab.tumblr.com/post/47556913309/it-is-taking-all-my-restraint-not-to-post-this" target="_blank">wnycradiolab</a>:</p> <blockquote> <p>It is taking all my restraint not to post this entire comic.  But I want you to visit The Oatmeal and experience all its riches, so: <a href="http://theoatmeal.com/comics/mantis_shrimp" title="The Oatmeal - Mantis Shrimp" target="_blank">Why The Mantis Shrimp Is My New Favorite Animal</a>. </p> <p>If you haven’t clicked through yet, let me add a little incentive: a later panel of this comic contains the line “The mantis shrimp is the harbinger of blood-soaked rainbows.”</p> <p>And if you would like to know even MORE about these miraculous creatures, we have a <a href="http://www.radiolab.org/2012/may/21/" title="Radiolab - Colors" target="_blank">Radiolab episode for you</a>, complete with a Mantis Shrimp choir.</p> </blockquote>http://turtlescientist.tumblr.com/post/50699732036http://turtlescientist.tumblr.com/post/50699732036Fri, 17 May 2013 20:00:31 -0700<img src="http://24.media.tumblr.com/dd7de1214979fc0356a141260fc54d0c/tumblr_mkvz0zttFU1qhymn9o1_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/ae444c8cf52eb7b7884fc6b47a066a58/tumblr_mkvz0zttFU1qhymn9o2_500.jpg"/><br/> <br/><p><a class="tumblr_blog" href="http://enochliew.tumblr.com/post/47361530342" target="_blank">enochliew</a>:</p> <blockquote> <p><strong>Fontana per Piazzale Corsica by Cesare Cattaneo</strong></p> <p>Built temporarily in Milan for the Sixth Triennial 1936, and in 1962 was finally rebuilt permanently in Camerlata through the efforts of the Cattaneo family.</p> </blockquote>http://turtlescientist.tumblr.com/post/50691325408http://turtlescientist.tumblr.com/post/50691325408Fri, 17 May 2013 18:00:51 -0700<img src="http://25.media.tumblr.com/8498ad80e8ae93fa8f01e9fc6430d6e2/tumblr_mkvvskwiCa1qzpsuoo1_500.jpg"/><br/><br/>http://turtlescientist.tumblr.com/post/50683412817http://turtlescientist.tumblr.com/post/50683412817Fri, 17 May 2013 16:00:59 -0700<img src="http://25.media.tumblr.com/d9b7f4c292df172e8fedeb468970d238/tumblr_mkl0rg1cAT1qbyxr0o1_400.gif"/><br/><br/><p><a class="tumblr_blog" href="http://cineraria.tumblr.com/post/46851048571/pendulum-waves-youtube" target="_blank">cineraria</a>:</p> <blockquote> <p><a href="http://www.youtube.com/watch?v=yVkdfJ9PkRQ" target="_blank">Pendulum Waves - YouTube</a></p> </blockquote>http://turtlescientist.tumblr.com/post/50674938412http://turtlescientist.tumblr.com/post/50674938412Fri, 17 May 2013 14:00:59 -0700<img src="http://24.media.tumblr.com/cfef6bff416367fc7542724723dc3ebb/tumblr_mj1cjf4jJ11qzrlhgo1_500.gif"/><br/><br/><p><a class="tumblr_blog" href="http://thefrogman.me/post/45529025515/i-know-you-are-all-jealous-of-my-levitating" target="_blank">thefrogman</a>:</p> <blockquote> <p>I know you are all jealous of my levitating TARDIS. </p> </blockquote>http://turtlescientist.tumblr.com/post/50667042440http://turtlescientist.tumblr.com/post/50667042440Fri, 17 May 2013 12:01:12 -0700<img src="http://24.media.tumblr.com/fc4a7da6891961299461fe4ce1f938ac/tumblr_mjlt22cEqA1roe4ino1_500.gif"/><br/><br/><p><a class="tumblr_blog" href="http://nsfw.tastefullyoffensive.com/post/45268560503/context-via" target="_blank">nsfwhumor</a>:</p> <blockquote> <p>[<a href="http://knowyourmeme.com/memes/aww-yiss" target="_blank">context</a>/<a href="http://imgur.com/KOExfGX" target="_blank">via</a>]</p> </blockquote>http://turtlescientist.tumblr.com/post/50626407431http://turtlescientist.tumblr.com/post/50626407431Thu, 16 May 2013 20:00:45 -0700<img src="http://25.media.tumblr.com/d06ab0e619413c81056f338e47f9309f/tumblr_mjiou9itOU1r0i205o1_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/5597b893da825fa74d3ecf4535ae29ba/tumblr_mjiou9itOU1r0i205o3_500.jpg"/><br/> <br/><img src="http://24.media.tumblr.com/0bdb1505ba057cc752bc179e08713f68/tumblr_mjiou9itOU1r0i205o2_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/051a407c964895e43b01705a7082a9c3/tumblr_mjiou9itOU1r0i205o4_500.jpg"/><br/> <br/><p><a class="tumblr_blog" href="http://myampgoesto11.tumblr.com/post/45139599170/kristine-bjaadal-underfull-the-tablecloth-that" target="_blank">myampgoesto11</a>:</p> <blockquote> <p><a href="http://kristinebjaadal.wordpress.com/" target="_blank">Kristine Bjaadal</a> Underfull<br/> “The tablecloth that turns spilling into poetry”</p> </blockquote>http://turtlescientist.tumblr.com/post/50617029554http://turtlescientist.tumblr.com/post/50617029554Thu, 16 May 2013 18:01:08 -0700<img src="http://25.media.tumblr.com/d1ad27d27a32220f54b3c84f46f96e41/tumblr_mjcum1snSK1r9y691o1_400.gif"/><br/><br/><p><a class="tumblr_blog" href="http://tyleroakley.tumblr.com/post/44873087445/so-cute" target="_blank">tyleroakley</a>:</p> <blockquote> <p>SO CUTE.</p> </blockquote>http://turtlescientist.tumblr.com/post/50608461708http://turtlescientist.tumblr.com/post/50608461708Thu, 16 May 2013 16:01:04 -0700<img src="http://25.media.tumblr.com/a73da6fe579112025ecf513043f5bbac/tumblr_mj6jghuD4n1qd82q3o1_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/ae0743c063664fdef596110868fa9eee/tumblr_mj6jghuD4n1qd82q3o2_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/a039d12520f0bd5fd25dabfd6966e8a7/tumblr_mj6jghuD4n1qd82q3o3_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/1861c9e9eb8b9091ab888825c166586c/tumblr_mj6jghuD4n1qd82q3o4_500.jpg"/><br/> <br/><img src="http://24.media.tumblr.com/f5a42473b8d048981b54e862cca19d36/tumblr_mj6jghuD4n1qd82q3o5_500.jpg"/><br/> <br/><img src="http://25.media.tumblr.com/4a1da5f72f2eaf21644a32567d06a515/tumblr_mj6jghuD4n1qd82q3o6_500.jpg"/><br/> <br/><img src="http://24.media.tumblr.com/a3688373c7e3926a8c9ac18bedfaa146/tumblr_mj6jghuD4n1qd82q3o7_500.jpg"/><br/> <br/><blockquote> <p>DIY Project: Makedo Desk Tray</p> </blockquote>http://turtlescientist.tumblr.com/post/50599774616http://turtlescientist.tumblr.com/post/50599774616Thu, 16 May 2013 14:00:57 -0700<img src="http://24.media.tumblr.com/61144bcad2afb24012115ffdf47d2961/tumblr_mj5xe5bnvD1qipy5xo1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://wnycradiolab.tumblr.com/post/44717525602/pohnnyworld-according-to-designer-elizabeth" target="_blank">wnycradiolab</a>:</p> <blockquote> <p><a class="tumblr_blog" href="http://pohnnyworld.tumblr.com/post/44581079514/according-to-designer-elizabeth-perez-the-books" target="_blank">pohnnyworld</a>:</p> <blockquote> <p>According to designer Elizabeth Perez, “The book’s spine is screen-printed with a matchbook striking paper surface, so the book itself can be burned.”</p> <p>Not that you’d ever want to, of course.</p> </blockquote> <p>Kinda brilliant.</p> </blockquote>http://turtlescientist.tumblr.com/post/50591761503http://turtlescientist.tumblr.com/post/50591761503Thu, 16 May 2013 12:01:14 -0700<img src="http://24.media.tumblr.com/d974e0d3ffb3f38b949b98dfcdb75e12/tumblr_mj17y6bC431qzrlhgo1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://thefrogman.me/post/44720982271/sometimes-people-wonder-should-i-learn" target="_blank">thefrogman</a>:</p> <blockquote> <p>Sometimes people wonder, “Should I learn photoshop?” The answer is yes. Yes you should. </p> </blockquote>http://turtlescientist.tumblr.com/post/50550453732http://turtlescientist.tumblr.com/post/50550453732Wed, 15 May 2013 20:00:51 -0700<img src="http://25.media.tumblr.com/1789b63316899d072a23db31f6aec0c4/tumblr_mi301zN7vJ1s5nl47o1_500.gif"/><br/><br/><p><a class="tumblr_blog" href="http://1ucasvb.tumblr.com/post/42881722643/the-familiar-trigonometric-functions-can-be" target="_blank">1ucasvb</a>:</p> <blockquote> <p>The familiar trigonometric functions can be geometrically derived from a circle.</p> <p><strong>But what if, instead of the circle, we used a regular polygon?</strong></p> <p>In this animation, we see what the “polygonal sine” looks like for the square and the hexagon. The polygon is such that the inscribed circle has radius 1.</p> <p>We’ll keep using the angle from the x-axis as the function’s input, instead of the distance along the shape’s boundary. (These are only the same value in the case of a unit circle!) <strong>This is why the square does not trace a straight diagonal line</strong>, as you might expect, but a segment of the tangent function. In other words, the speed of the dot around the polygon is not constant anymore, but the angle the dot makes changes at a constant rate.</p> <p>Since these polygons are not perfectly symmetrical like the circle, the function will depend on the orientation of the polygon.</p> <p>More on this subject and derivations of the functions <a href="http://1ucasvb.tumblr.com/post/42906053623/in-a-previous-post-i-showed-how-to-geometrically" target="_blank">can be found in this other post</a></p> <p><strong>Now you can also <a href="http://1ucasvb.tumblr.com/post/43274278347/experimenting-with-sound-the-polygonal" target="_blank">listen to what these waves sound like.</a></strong></p> <p>This technique is general for any polar curve. <a href="http://1ucasvb.tumblr.com/post/43105696213/better-late-than-never-happy-valentines-day" target="_blank">Here’s a heart’s sine function</a>, for instance</p> </blockquote>http://turtlescientist.tumblr.com/post/50540523004http://turtlescientist.tumblr.com/post/50540523004Wed, 15 May 2013 18:01:09 -0700