when XD just doesn’t cut it I collect here various things that inspire, amuse, and/or disturb me. Things that make me tick: Science, engineering, social media, jazz music, tech news.Tumblr (3.0; @xmfd)http://xmfd.net/<img src="http://24.media.tumblr.com/tumblr_m4mumdpxGX1qb57azo1_500.jpg"/><br/><br/><p><a class="tumblr_blog" href="http://lulubonanza.tumblr.com/post/23794965062/silver-surfer-galactus-tattoo-by-decayingart">lulubonanza</a>:</p> <blockquote> <p><a href="http://DecayingArt.deviantart.com/art/Silver-Surfer-Galactus-tattoo-69168321">Silver Surfer-Galactus tattoo</a> by *<a href="http://decayingart.deviantart.com/">DecayingArt</a></p> </blockquote>http://xmfd.net/post/23916626963http://xmfd.net/post/23916626963Mon, 28 May 2012 01:31:33 -0500<img src="http://24.media.tumblr.com/tumblr_m294n9i1CR1qdv42bo1_500.png"/><br/><br/><p><a class="tumblr_blog" href="http://howdidwegetsofaraway.tumblr.com/post/23762651167/best-super-villain-plan-ever">howdidwegetsofaraway</a>:</p> <blockquote> <p>“Best super villain plan ever.”</p> </blockquote>http://xmfd.net/post/23821985519http://xmfd.net/post/23821985519Sat, 26 May 2012 17:13:18 -0500<img src="http://25.media.tumblr.com/tumblr_m4e0rnNClj1qzq9lzo1_500.jpg"/><br/><br/><p>Procession in the Catacomb of Callistus</p>http://xmfd.net/post/23492692809http://xmfd.net/post/23492692809Mon, 21 May 2012 14:28:35 -0500<iframe width="400" height="299" src="http://www.youtube.com/embed/h7yRuqa81zU?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>OSCAR PETERSON & JOE PASS/CAKEWALK (by <a href="http://www.youtube.com/watch?v=h7yRuqa81zU&feature=related">hartin318</a>)</p>http://xmfd.net/post/23422902953http://xmfd.net/post/23422902953Sun, 20 May 2012 12:16:11 -0500<img src="http://25.media.tumblr.com/tumblr_m39jktTrl11qf5489o1_500.jpg"/><br/><br/>http://xmfd.net/post/23237300286http://xmfd.net/post/23237300286Thu, 17 May 2012 13:07:07 -0500<img src="http://25.media.tumblr.com/tumblr_m3vh78rYsC1qa7awxo1_500.jpg"/><br/><br/>http://xmfd.net/post/23237137652http://xmfd.net/post/23237137652Thu, 17 May 2012 13:03:11 -0500<img src="http://24.media.tumblr.com/tumblr_m2bz9zEVG01qk1znko1_500.png"/><br/><br/><p>Vivi from FF9</p> <p>My favorite FF.</p>http://xmfd.net/post/23219720214http://xmfd.net/post/23219720214Thu, 17 May 2012 03:03:43 -0500<iframe width="400" height="299" src="http://www.youtube.com/embed/c4r12ZKYkbs?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>How To Charleston 2 - solo 1 (by <a href="http://www.youtube.com/watch?v=c4r12ZKYkbs&feature=related">jazzswingdance</a>)</p>http://xmfd.net/post/23011442455http://xmfd.net/post/23011442455Sun, 13 May 2012 20:26:04 -0500<img src="http://24.media.tumblr.com/tumblr_m3xw6bZx211qzq9lzo1_400.jpg"/><br/><br/>http://xmfd.net/post/22943604519http://xmfd.net/post/22943604519Sat, 12 May 2012 21:27:46 -0500<img src="http://25.media.tumblr.com/tumblr_m3a07cjR681qzq9lzo1_500.jpg"/><br/><br/>http://xmfd.net/post/22107263624http://xmfd.net/post/22107263624Sun, 29 Apr 2012 23:52:23 -0500<iframe width="400" height="225" src="http://www.youtube.com/embed/kiePaAHK3jE?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>Go right (by <a href="https://www.youtube.com/watch?v=kiePaAHK3jE">RockyPlanetesimal</a>)</p>http://xmfd.net/post/22063319743http://xmfd.net/post/22063319743Sun, 29 Apr 2012 13:25:27 -0500<img src="http://25.media.tumblr.com/tumblr_m1kisjPN6Z1qmg4b2o1_500.jpg"/><br/><br/>http://xmfd.net/post/20160919780http://xmfd.net/post/20160919780Fri, 30 Mar 2012 01:24:43 -0500<iframe width="400" height="299" src="http://www.youtube.com/embed/2TFT3K7wyb4?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>Tour de Japon - 14 Final Fantasy Main Theme (by <a href="http://www.youtube.com/watch?v=2TFT3K7wyb4&feature=BFa&list=PL0013EDD80D23CDA6&lf=results_video">Xpyriant</a>)</p>http://xmfd.net/post/20052727117http://xmfd.net/post/20052727117Wed, 28 Mar 2012 00:58:34 -0500<img src="http://25.media.tumblr.com/tumblr_m0ufk852JF1qizbpto1_500.gif"/><br/><br/><p><a class="tumblr_blog" href="http://magicalgametime.com/post/19253758671/game-boy-pocket-released-in-1996-this-was-the">idrawnintendo</a>:</p> <blockquote> <p>Game Boy Pocket, released in 1996. This was the first handheld system I ever had and I remember playing Pokémon Blue on it.</p> </blockquote>http://xmfd.net/post/19668050414http://xmfd.net/post/19668050414Tue, 20 Mar 2012 23:50:40 -0500<iframe width="400" height="300" src="http://www.youtube.com/embed/rbMx2NMqyuI?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p><a class="tumblr_blog" href="http://fuckyeahfluiddynamics.tumblr.com/post/19351186570/david-asks-im-taking-an-undergraduate-fluid">fuckyeahfluiddynamics</a>:</p> <blockquote> <p>David asks: </p> <blockquote>I’m taking an undergraduate fluid dynamics course, and I’m having trouble understanding what a Creeping Flow exactly is. The only thing I understand about that is that the Re should be 0 or close to 0 for the flow… Could you post an example of a creeping flow please? Thank you!</blockquote> <p>Absolutely! Creeping flow, also called <a href="http://en.wikipedia.org/wiki/Stokes_flow">Stokes flow</a>, is, like you said, a very low Reynolds number flow. It would be hard to say that the Reynolds number is zero because that would seem to imply no flow at all. Think of it instead as a Reynolds number much, much less than one. When the <a href="http://en.wikipedia.org/wiki/Reynolds_number">Reynolds number</a> is very low, it means that <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/viscosity">viscous</a> forces are dominating the flow. The video above shows creeping flow around a cylinder; notice how the streamlines stay attached all the way around the surface of the cylinder.  There’s no <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/boundary+layer+separation">separation</a>, no turbulent <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/wakes">wake</a>, no <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/von+karman+vortex+street">von Karman vortex street</a>. Viscosity is so dominant here that it’s damped out all of that inertial diffusion of momentum.</p> <p>We’ve posted some other great examples of creeping flow, as well, though not by that name. There are the <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/reversible+motion">reversible laminar flow demos</a> and various experiments in <a href="http://fuckyeahfluiddynamics.tumblr.com/tagged/hele-shaw+cell">Hele-Shaw cells</a>, all of which qualify as creeping flow because of their highly viscous nature. If you have the time, there’s also a great instructional video from the 1960s called “Low Reynolds Number Flow” (Parts <a href="http://www.youtube.com/watch?v=hALx7vfmRt4">1</a>, <a href="http://www.youtube.com/watch?v=PhsmOc7Hb8Q">2</a>, <a href="http://www.youtube.com/watch?v=zAcwqYezl7A">3</a>, <a href="http://www.youtube.com/watch?v=Bj-FWqe-Jwo">4</a>) starring <a href="http://en.wikipedia.org/wiki/Geoffrey_Ingram_Taylor">G. I. Taylor</a> (a famous fluid dynamicist) that is full of one demo after another.</p> </blockquote>http://xmfd.net/post/19668038983http://xmfd.net/post/19668038983Tue, 20 Mar 2012 23:50:20 -0500<iframe width="400" height="225" src="http://www.youtube.com/embed/rh9N0SjJJlc?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>George Benson plays the blues over rhythm change (by <a href="http://www.youtube.com/watch?v=rh9N0SjJJlc&feature=related">MattBlackParis</a>)</p>http://xmfd.net/post/18002989523http://xmfd.net/post/18002989523Tue, 21 Feb 2012 02:42:03 -0600<a href="http://en.wikipedia.org/wiki/Standard_Model">Standard Model - Wikipedia, the free encyclopedia</a>http://xmfd.net/post/17312324480http://xmfd.net/post/17312324480Thu, 09 Feb 2012 02:45:30 -0600<img src="http://25.media.tumblr.com/tumblr_lvb7od14SB1qzq9lzo1_500.jpg"/><br/><br/>http://xmfd.net/post/13391832054http://xmfd.net/post/13391832054Sun, 27 Nov 2011 02:02:37 -0600<embed type="application/x-shockwave-flash" src="http://assets.tumblr.com/swf/audio_player_black.swf?audio_file=http://www.tumblr.com/audio_file/11984020405/tumblr_ltpqg04Qyd1qzq9lz&color=FFFFFF" height="27" width="207" quality="best" wmode="opaque"></embed><br/><br/><p>ChemE</p>http://xmfd.net/post/11984020405http://xmfd.net/post/11984020405Thu, 27 Oct 2011 02:07:12 -0500<iframe width="400" height="299" src="http://www.youtube.com/embed/Zj8p3wsFx58?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0&showsearch=0" frameborder="0" allowfullscreen></iframe><br/><br/><p>Metal Gear 20 Years History - Past, Present, Future [COMPLETE!] (by <a href="http://www.youtube.com/watch?v=Zj8p3wsFx58">PowerfulFoe</a>)</p>http://xmfd.net/post/10307201298http://xmfd.net/post/10307201298Sat, 17 Sep 2011 01:22:01 -0500