Inventor Creates Soundless Sound System

  1. http://story.news.yahoo.com/news?tmpl=story&cid=562&e=2&u=/ap/hypersonic_sound

    AirScooter: http://www.airscooter.com
    ==============================================

    Is this true or a hoax?

    Thanks

    Edit by Ivan. Welcome to PF Michael66. :smile:
    Please post only brief quotes with a link as shown. We need to do this in order to avoid copyright violations.

    PF Posting Guidelines:
    https://www.physicsforums.com/showthread.php?t=5374
     
    Last edited by a moderator: Apr 24, 2005
  2. jcsd
  3. anybody can check it out for me?
     
  4. cronxeh

    cronxeh 1,232
    Gold Member

    I saw this about a year ago, and imho, 500K is not deserved
     
    Last edited: Apr 24, 2005
  5. Great, just what I wanted, to be yelled at from across the room. Even while fleeing from the insanity on one of his ultra-lites, they could still point the sound "ray" at me and keep yelling!
     
  6. This is real. I have heard on and off about this guy over the years. Pretty cool.
    Last I heard the japanese bought his idea so they could use it to advertise with pop machines or something. You would only hear it when you stood in front of it.

    Uses microwave interference to rapidly heat( vibrate ) the air in a localized region.

    I like how whenever some new radical tech comes out, all the "scientist" on this website can never admit its possible, just because they do not understand it. This website suffers from the "We already know everything there is to know" syndrom. Most of these guys really need to spend less time on their computers, and more time in reality.
     
  7. DavidSnider

    DavidSnider 498
    Gold Member

    Do you have an example of this? I haven't had that experience here at all.
     
  8. russ_watters

    Staff: Mentor

  9. I am refering mostly to the fact there are many banned topics here.

    I know there is a microwave version as well. I thought this was the guy using it.
     
  10. Ivan Seeking

    Ivan Seeking 12,529
    Staff Emeritus
    Science Advisor
    Gold Member

    We need a credible source to support a claim like that.

    To my knowledge, there is no way that your statement could be correct.
     
  11. russ_watters

    Staff: Mentor

  12. Ivan Seeking

    Ivan Seeking 12,529
    Staff Emeritus
    Science Advisor
    Gold Member

    That I can understand because it is all RF. However. Mr. Hayman seems to be saying that the microwaves are being used to create conditions that lead to destructive interference in sound waves.
     
  13. I may be incorrect. But when I first read about this tech years ago he said it had something to do with microwaves. Maybe he was just refering to the phased array principle as it is used in rader. It was years ago I first heard about this. I am surprised it hasn't really made into the public field.
     
  14. rhody

    rhody 765
    Gold Member

    http://blog.ted.com/2009/01/woody_norris_on.php

    Is this the same Woody Norris who gave a TED presentation, posted in Jan 2009 ?

    I am pretty sure TED screens crackpots before allowing them to present their inventions, watch the video, 15 minutes or so and see what you think. I will tell you that he doesn't go into great technical detail in describing it, only examples and suggestions on practical applications for it. Woody does not have a college degree, and admits it in his presentation. I will leave it for you to assess.

    Here is his TED bio

    Rhody...

    P.S.

    This is general observation on my part, please don't take offense, I have been watching TED for over 3 years now and regularly return for breakthroughs and advances in science and technology. For instance, Lee Smolin, George Smoot, and other Nobel Prize winners have presented 20 minute or so talks here. IMHO, there are few better sites in the world for the public to get news on breaking science or technology NOT covered by mainstream media. TED was the springboard that launched Garrett Lisi and his E8 Theory in 2007 I believe.
     
    Last edited: Feb 27, 2010
  15. rhody

    rhody 765
    Gold Member

    I have had a bit of time to think about this, if Woody's invention is being sold and used in different applications doing precisely what he claims it does, doesn't this thread deserve relocation in say the General or Electrical Engineering Forums ?

    Rhody...
     
  16. Chronos

    Chronos 9,992
    Science Advisor
    Gold Member

    Great idea, no science. I believe David Copperfield already pulled off this trick.
     
  17. Imagine cheating on an exam by beaming answers across the room to be heard by one listener. Students are going to get better at cheating, but that's another story.

    Do you think we'll still be talking about boxes sliding down frictionless inclines then?
     
  18. It reminds me of whispering across a planetarium or other dome.
     
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