Cookies-law

Cookies help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
http://www.overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please leave this website now. Many thanks for your understanding.
Amazon Warehouse Deals ! Now even more Deep Discounts ! Check out these great prices on slightly used or just opened once only items.I always buy my gadgets via these great Warehouse deals ! Highly recommended ! Many thanks for supporting OverUnity.com this way.

FireMatch

FireMatch

CCKnife

CCKnife

Poplamp

poplamp

CCTool

CCTool

LEDTVforSale

Magpi Magazine

Magpi Magazine Free Rasberry Pi Magazine

Battery Recondition

Battery Recondition

OverUnity Book

overunity principles book

Arduino

Ultracaps

YT Subscribe

Gravity Machines

Tesla-Ebook

Magnet Secrets

Lindemann Video

Navigation

Products

Statistics


  • *Total Posts: 489683
  • *Total Topics: 14414
  • *Online Today: 44
  • *Most Online: 103
(December 19, 2006, 11:27:19 PM)
  • *Users: 5
  • *Guests: 224
  • *Total: 229

Facebook

Author Topic: Peter Davey Heater  (Read 271312 times)

Offline CompuTutor

  • Sr. Member
  • ****
  • Posts: 438
Re: Peter Davey Heater
« Reply #465 on: March 16, 2011, 02:23:49 AM »
Maybe some pics to study too ?


Free Energy | searching for free energy and discussing free energy

Re: Peter Davey Heater
« Reply #465 on: March 16, 2011, 02:23:49 AM »

Offline CompuTutor

  • Sr. Member
  • ****
  • Posts: 438
Re: Peter Davey Heater
« Reply #466 on: March 16, 2011, 02:25:23 AM »
(Limit 10 pics per post...)


Free Energy | searching for free energy and discussing free energy


Offline zuvrick

  • Newbie
  • *
  • Posts: 6
Re: Peter Davey Heater
« Reply #467 on: January 24, 2012, 02:23:17 AM »
Sorry for coming into this so late.

I have read through some o fthe posts on pages 1-5 and some of the last 3.

I didn't see anyone mention these acoustic issues.

The size of the bells will have no relationship to their bell-resonant frequency. The frequency is determined by the thickness of metal, modulus of elasticity and Poisson's Ratio, which vary with differing alloys. Also any work hardening induced in the stamping, pressing or metal spinning methods to make such a shape change the modulus of elasticity.

The other very important fact is that the velocity of sound is also part of the equation. When a bell in air is struck it will have a certain pitch or frequency, but when it is immersed in water the resonant frequency will be lowered. You can test this by immersing any wind chime bar or tube, or any bell in water after it has been struck. You'll hear the pitch slide downward (glissando in music).

My trusty handbook for this info is Music, Physics and Engineering by Harry F? Olson, my copy was published in 1968 or so (been dragging it around for 43 years). I have played a lot with metal instruments, and witnessed the building of a bronze Javanese gong that takes to days of hot and cold forging to make it sound musical. These use Beta Bronze, a special intermetallic compound and not really an alloy, of tin and copper. But that's another story.

I have a sneaking hunch that any tuned resonance by Davey was done in air and has no relation to the bell resonance in water.

Another factor is possible the resonance of the cavity formed, but that is hard to measure.

I would think that the easiest way to prove or disprove resonance in this is to supply a variable frequency power signal. Take an amplifier and and use a 220V primary and 12-24V secondary transformer, connect it backwards to step up the ampliier output to 100-250 volts and then vary the frequency around 40-150 Hz while measuring the current and temperature rise.

Zuvrick from Indonesia

Offline Paul-R

  • without_ads
  • Hero Member
  • *****
  • Posts: 1737
Re: Peter Davey Heater
« Reply #468 on: May 10, 2014, 05:35:39 PM »

The size of the bells will have no relationship to their bell-resonant frequency.
 
This is not true.
 
The factors that you mention in your next paragraph will have a bearing, but if the diameter of the bell is doubled, all else remaining constant, do you imagine it will not change the resonant frequency?


Offline MasterPlaster

  • Sr. Member
  • ****
  • Posts: 463
Re: Peter Davey Heater
« Reply #469 on: May 11, 2014, 07:03:15 PM »
Here is a study on water cavitation that is great source of info:

http://www.dtic.mil/dtic/tr/fulltext/u2/a031182.pdf

Free Energy | searching for free energy and discussing free energy

Re: Peter Davey Heater
« Reply #469 on: May 11, 2014, 07:03:15 PM »
Sponsored links:




 

Share this topic to your favourite Social and Bookmark site

Please SHARE this topic at: