Eccentric masses 
    Vibratory hammers use contra-rotating eccentric masses and can generate a centrifugal force of up to 4 000 kN. The maximum displacement amplitude can exceed 30 mm. 
 
http://www.geoforum.com/info/pi ...  
    Asked on 4 May 2004 by J. Viklund  
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    The Gyro Car 
    for a very good use go to: 
http://2cobbs.com/gyro/index.html  
    Asked on 16 April 2004 by John Dryden  
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    power equation 
    If is it possible to get power, more than the given one with a system using gyroscopes?  
    Asked on 10 April 2004 by sh.yazdani  
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    funding for inertial propulsion engines 
    If you are designing and/or building an inertial proulsion engine and need funding then contact me. As many details as possible would be helpful so I can decide upon the most feasable designs which ho ...  
    Asked on 2 May 2004 by Luke Clifford  
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    You have learned well young skywalker 
    Well... you seem to have discovered my little... secret... BUT the question is... Will you be able to figure it out... COMPLETELY??? in 1 year we will see if my theory is correct even though 2 people  ...  
    Asked on 11 February 2004 by JAK  
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    Welcome back to the prototypes. 
    Dear Webmaster, 
 
Thank you and congratulations for having the courage to expose your soul (prototypes) under "propulsion" - "my work". Thankfully most of my early work was done over thirty years a ...  
    Asked on 5 February 2004 by Nitro MacMad  
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    Anyone know how to build a propulsion device? 
    Does anyone really know how to build a propulsion device which can hover in air? I've heard people said that it can be done by spinning the solenoids in certain way. Any comments?  
    Asked on 20 January 2004 by James  
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    friction or something else? 
    Do gyroscopic propulsion devices work by interaction (friction) with the environment or by changing their centre of gravity in relation to the surroundings? 
If the devices work by friction (movement ...  
    Asked on 19 January 2004 by DaveS  
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    Patent Number 
    In your propulsion page, you list Geoff Russell as having US Patent #2,090,404. But F.A. Parkhurst owns that patent, and it's titled,"A Machine for Extruding Plastic Material" and was published in 193 ...  
    Asked on 19 January 2004 by Brad H  
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    Scott Strachan 
    Does anyone know if Scott Strachan is contactable? He doesn't seem to have done much over the past 15 years.  
    Asked on 17 January 2004 by John  
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    Happy New Year 
    Dear All, 
 
Happy New Year to the Webmaster, the experimenters, the curious, and the nutters in sheds (inventive geniuses) like me who are working to show that the third law is very nearly right. O ...  
    Asked on 1 January 2004 by NM  
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    Testing for deviation from Newton 
    Dear Glen et al, 
        (The question is right at the end) 
 
It used to be regarded as a reasonable test of a mechanisms ability to circumvent the "third law" for it to move (without stick/slip  ...  
    Asked on 16 November 2003 by Nitro MacMad  
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    Patents 
    Apart from the millions of parasitic web sites trying to get would be inventors to share their insights and hence their intellectual rights, where do you file new inventions to give you peace and secu ...  
    Asked on 7 November 2003 by DaveS  
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    Physics behind gyro-based propulsion. 
    Despite the many claims made by developers of gyro-based (linear thrust) propulsion, that one or more of Newton's laws of motion are seemingly broken, I can definitively say that *NONE* of the three l ...  
    Asked on 13 October 2003 by Jeremy O'Connor  
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    building a machine 
    Any private individuals out there with funding for the building of a gyroscopic propulsion device?  
    Asked on 11 August 2003 by dave  
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    Heretic 
    I am searching a video file of the BBC program Heretic which featured Eric Laithwaite and hid gyros devices. Has anyone numerised it ? 
 
Thank you very much for any link or indication.  
    Asked on 24 July 2003 by sam  
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    Any follow up on Prof. Laithwaite's lecture experiment? 
    During his lecture professor Laithwaite showed a trolly with a swinging pendulum. Only one swing was shown on TV and the trolly moved about 18 ins. I have always believed that a full rotation of the p ...  
    Asked on 20 July 2003 by Tony McKenna  
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    A lighter gyroscope 
    Why does a spinning gyroscope weigh less  
    Asked on 9 February 2003 by MaSSmeDiA  
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    Gyroscopic Propulsion 
    I don't understand how a system made up of purely rotational forces, such as a gyroscope, can produce a resultant linear force without some linear force, such as friction being introduced into the sys ...  
    Asked on 6 April 2001 by Dale  
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