Physicist, Audio-Acoustics, Musician, Astrophysics, Lisp (PL), AI, StarWars Programs (film and defence), Motorsports, Ex-intel agent, Chairman + CTO of Acudora, Inc. new TWTR.Widget({ version: 2, type: 'profile', rpp: 4, interval: 30000, width: 250, height: 300, theme: { shell: { background: '#918e91', color: '#080808' }, tweets: { background: '#e0e0e0', color: '#3d3b3d', links: '#cf6304' } }, features: { scrollbar: true, loop: false, live: false, behavior: 'all' } }).render().setUser('DMcClainPhD').start(); Tumblr (3.0; @acudoradavid)http://acudoradavid.tumblr.com/Part 6: What is a Physics Model Anyway? When we discussed the development of our EarSpring model for...http://acudoradavid.tumblr.com/post/28341251250http://acudoradavid.tumblr.com/post/28341251250Mon, 30 Jul 2012 11:12:55 -0500psychoacousticsphysicsSoundHearingscienceaudiologyWe have known at least 3 things about human hearing, for more than 50 years.1. The sensitivity to...http://acudoradavid.tumblr.com/post/28333426918http://acudoradavid.tumblr.com/post/28333426918Mon, 30 Jul 2012 07:51:58 -0500psychoacousticsphysicsaudiologysoundHearingscienceThreshold hearing&#8230; let&#8217;s look at that idea for a moment&#8230;Back in the 1970&#8217;s,...http://acudoradavid.tumblr.com/post/28332134198http://acudoradavid.tumblr.com/post/28332134198Mon, 30 Jul 2012 07:05:40 -0500psychoacousticsphysicsscienceaudiologysoundhearingLet&#8217;s digress a moment about fitting models to clinical data&#8230;Nearly all studies to date...http://acudoradavid.tumblr.com/post/28044101927http://acudoradavid.tumblr.com/post/28044101927Thu, 26 Jul 2012 03:23:49 -0500soundphysicspsychoacousticsaudiologysciencePart 2:To be fair to the field of Audiology, their goals have likely never been the same as mine....http://acudoradavid.tumblr.com/post/27977496019http://acudoradavid.tumblr.com/post/27977496019Wed, 25 Jul 2012 07:08:37 -0500physicssoundpsychoacousticsaudiologyWhen I was a kid in college, many years ago, I signed up for a course on &#8220;Mathematical...http://acudoradavid.tumblr.com/post/27976980270http://acudoradavid.tumblr.com/post/27976980270Wed, 25 Jul 2012 06:49:29 -0500This is a continuation of my previous post &#8220;The Higgs Boson particle Explained: Part...http://acudoradavid.tumblr.com/post/27550472862http://acudoradavid.tumblr.com/post/27550472862Thu, 19 Jul 2012 07:20:00 -0500HiggsHiggs-BosonBosonparticlephysicsscienceCERNdiscovery This is a &#8220;modern day Periodic Table&#8221; for elementary particles of physics. It was...http://acudoradavid.tumblr.com/post/27550429706http://acudoradavid.tumblr.com/post/27550429706Sun, 15 Jul 2012 07:19:00 -0500HiggsBosonHiggs-BosonParticlediscoveryCERNsciencephysicsinterestingInteresting article from: http://ow.ly/cbARU Atom-smashing physicists have just turned data for a...http://acudoradavid.tumblr.com/post/27042830302http://acudoradavid.tumblr.com/post/27042830302Thu, 12 Jul 2012 04:46:55 -0500Higgs bosonatommusicphysicsHere is another picture of the chaotic attractor basin, with more than 1-million cycles of vibration...http://acudoradavid.tumblr.com/post/27337708545http://acudoradavid.tumblr.com/post/27337708545Sat, 07 Jul 2012 11:39:00 -0500chaoschaoticattractorbasinbeautifulartsciencephysicsnature<iframe class="tumblr_audio_player tumblr_audio_player_27337540582" src="http://acudoradavid.tumblr.com/post/27337540582/audio_player_iframe/acudoradavid/tumblr_m68dvlTVSI1rpys67?audio_file=http%3A%2F%2Fwww.tumblr.com%2Faudio_file%2Facudoradavid%2F27337540582%2Ftumblr_m68dvlTVSI1rpys67" frameborder="0" allowtransparency="true" scrolling="no" width="500" height="85"></iframe><br/><br/><p><strong>Chaos of Sound: Part 2 of 3</strong></p> <p>So, what does chaotic vibration sound like? I sonified the chaotic vibration into this MP3 for you to hear.<br/><br/> Of course, you already know what truly random sound is like — it’s just white noise.</p> <p>Warning - probably not a good idea to listen to this of full volume!</p>http://acudoradavid.tumblr.com/post/27337540582http://acudoradavid.tumblr.com/post/27337540582Fri, 06 Jul 2012 11:36:00 -0500sonifiedchaoticvibrationmp3audiosoundscienceThe other day a discussion arose about the nature of randomness and chaos. The two are not quite the...http://acudoradavid.tumblr.com/post/27336899139http://acudoradavid.tumblr.com/post/27336899139Thu, 05 Jul 2012 11:24:00 -0500soundchaosrandomnessrandompoincare sectionvibrationoscillationscienceexplainedfunI discovered a major flaw in a newly recommended (by NIST, NSA) cryptographic random number...http://acudoradavid.tumblr.com/post/27336686610http://acudoradavid.tumblr.com/post/27336686610Tue, 03 Jul 2012 11:20:00 -0500NSAflawalgorithmEC-DRBGNISTsecuritycomputercryptography<img src="http://24.media.tumblr.com/tumblr_m5i411Y51Z1rpys67o1_500.jpg"/><br/><br/><p>In response to my previous post: Frequency Measurement Test I share my home set up:</p> <p>Rb clocks are located at the upper right with a fan blowing across them to keep them cool.<br/><br/> Main radio receiver is in the center. GPS receiver on floor under bookcase with control panel at right. Rb clock control panel is computer below that and sitting atop an old oscilloscope.<br/><br/> Main analysis station is bigger screen to the left. Signal generators to right of main radio.<br/><br/> Not as bad as the <a href="http://k5cm.com/k6OQK%20FMT%20NEW.htm" target="_blank">other guy</a>…</p>http://acudoradavid.tumblr.com/post/25928170298http://acudoradavid.tumblr.com/post/25928170298Tue, 26 Jun 2012 09:56:56 -0500FrequencyMeasurementTestHam radiophysicsgeeky(FMT = Frequency Measurement Test       &#8212; an informal competition among ubergeek Ham radio...http://acudoradavid.tumblr.com/post/25843348828http://acudoradavid.tumblr.com/post/25843348828Mon, 25 Jun 2012 03:45:53 -0500FMTFrequencymeasurementtestgeekyfunHam radiophysics<img src="http://25.media.tumblr.com/tumblr_m5i272ItpE1rpys67o1_500.png"/><br/> <br/><img src="http://24.media.tumblr.com/tumblr_m5i272ItpE1rpys67o2_500.png"/><br/> <br/><h1 class="ha"><span class="hP" id=":4n">What I want for Chanuka (er Christmas?)…</span></h1> <p>Only costs around $250,000 USD !! But it gets my short-term stability over 1-100 sec down to around 1e-13 ppx for my frequency measurements. That’s about 1 microHz at 10 MHz</p>http://acudoradavid.tumblr.com/post/25500743494http://acudoradavid.tumblr.com/post/25500743494Wed, 20 Jun 2012 07:24:31 -0500technologyphysicsfrequencymeasurementChristmaschanukagiftThe text that follows is necessarily aimed at recording engineers and audiophiles, who have more...http://acudoradavid.tumblr.com/post/24946418759http://acudoradavid.tumblr.com/post/24946418759Tue, 12 Jun 2012 04:55:52 -0500EQEqualizationsoundaudiophileengineermixingAcudoraqualityaudio<img src="http://25.media.tumblr.com/tumblr_m4w80h16sH1rpys67o1_500.jpg"/><br/><br/><p><h1 class="heading">Rhythm platformer Sound Shapes is shaping up for its Vita debut</h1></p>http://acudoradavid.tumblr.com/post/24130917859http://acudoradavid.tumblr.com/post/24130917859Thu, 31 May 2012 10:21:52 -0500computervideogamesplaystationsonysoundinnovation<img src="http://25.media.tumblr.com/tumblr_m4w7swYeut1rpys67o1_500.jpg"/><br/><br/><p><h1><span class="headline source-org">This 121-Megapixel Photo of Earth Will Make Your Jaw Drop</span></h1></p>http://acudoradavid.tumblr.com/post/24130757015http://acudoradavid.tumblr.com/post/24130757015Tue, 22 May 2012 10:17:00 -0500earthplanetphotopictureamazinghi def<a href="http://animoto.com/play/K7fcSYKo812xVMvGwtRZBw">CTIA - New Orleans 2012 - ACUDORA (VIDEO)</a>http://acudoradavid.tumblr.com/post/24130653078http://acudoradavid.tumblr.com/post/24130653078Sun, 13 May 2012 10:14:00 -0500ctia2012nolanew orleansacudoraaudiotechnologyvideo