https://wiki.naturalphilosophy.org/index.php?action=history&feed=atom&title=David_Deak 2026-07-22T10:47:34Z Revision history for this page on the wiki MediaWiki 1.43.0 https://wiki.naturalphilosophy.org/index.php?title=David_Deak&diff=292595&oldid=prev 2026-07-18T11:52:02Z

<p>Create biographical page for person listed in The Worldwide List of Dissident Scientists (web-verified; red-link batch 8)</p> <p><b>New page</b></p><div>{{Infobox scientist<br /> | name = David Deak<br /> | fields = Physics, acoustics, invention<br /> | known_for = Acoustic levitation chamber and ultrasonic momentum-transfer devices<br /> }}<br /> <br /> &#039;&#039;&#039;David Deak&#039;&#039;&#039; is an inventor and self-described physicist known for work on acoustic levitation and ultrasonic fluid-handling devices. He is listed in &#039;&#039;[[The Worldwide List of Dissident Scientists]]&#039;&#039;.<br /> <br /> ==Work==<br /> Deak designed and built an acoustic levitation chamber, a cubic Helmholtz-type resonant cavity driven by multiple loudspeakers coupled through acoustic waveguides; by adjusting the amplitude and phase of a continuous resonant sound field, the device is intended to control the position of levitated objects within the chamber.<br /> <br /> He is the named inventor on several United States patents for ultrasonic fluid devices, including &quot;Momentum Transfer Pump&quot; (US 5,525,041), &quot;Momentum Transfer Apparatus&quot; (US 5,982,801) and &quot;Ultrasonic Phase Pump&quot; (US 6,234,765). These describe apparatus that use ultrasonic energy to move liquids, gases and aerosols without conventional mechanical pumping, and that address related phenomena such as cavitation and sonoluminescence. His energy-related work led to his inclusion in listings maintained by the Institute for New Energy.<br /> <br /> On his personal website he identifies himself as a physicist, artist, inventor and writer, holds an Amateur Extra Class radio license (call sign W2PHD), and indicates associations with Queen Mary College, Imperial College London and the University of Copenhagen.<br /> <br /> ==External links==<br /> * [http://deakworld.weebly.com Personal website (Deakworld)]<br /> * [https://patents.google.com/patent/US5982801 US Patent 5,982,801 — Momentum Transfer Apparatus]<br /> * [https://www.youtube.com/watch?v=Y36pKR1FnIA Acoustic Levitation Chamber (video)]<br /> <br /> [[Category:Scientist|Deak David]]<br /> [[Category:Worldwide List of Dissident Scientists]]</div>

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