The Naked Scientists
  • Login
  • Register
  • Podcasts
      • The Naked Scientists
      • eLife
      • Naked Genetics
      • Naked Astronomy
      • In short
      • Naked Neuroscience
      • Ask! The Naked Scientists
      • Question of the Week
      • Archive
      • Video
      • SUBSCRIBE to our Podcasts
  • Articles
      • Science News
      • Features
      • Interviews
      • Answers to Science Questions
  • Get Naked
      • Donate
      • Do an Experiment
      • Science Forum
      • Ask a Question
  • About
      • Meet the team
      • Our Sponsors
      • Site Map
      • Contact us

User menu

  • Login
  • Register
  • Home
  • Help
  • Search
  • Tags
  • Member Map
  • Recent Topics
  • Login
  • Register
  1. Naked Science Forum
  2. On the Lighter Side
  3. New Theories
  4. Gravity modification experiments by DePalma & Podkletnov.
« previous next »
  • Print
Pages: 1 [2]   Go Down

Gravity modification experiments by DePalma & Podkletnov.

  • 32 Replies
  • 2950 Views
  • 0 Tags

0 Members and 1 Guest are viewing this topic.

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #20 on: 21/10/2018 23:44:48 »
Quote from: alancalverd on 21/10/2018 22:55:05
Quote from: mad aetherist on 20/10/2018 12:48:49
But this project needs lots of effort, even tho easy.
Apparently not. All you need is a wristwatch and a spinning disc. You have the numbers.
Yes see my other posting. I can get my hands on a couple of digital timers. What i need is a spinning disc, either small & fast or big & not so fast. Finding an existing disc already doing some sort of job would save electricity etc.
Logged
 



Offline alancalverd

  • Global Moderator
  • Naked Science Forum GOD!
  • ********
  • 10951
  • Activity:
    100%
  • Thanked: 634 times
  • life is too short to drink instant coffee
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #21 on: 22/10/2018 11:01:29 »
Try an exercise bicycle. Or a gramophone turntable with a weightlifter's 20 kg disc. Or just quote Podkletnov's numbers and I'll find or design something to replicate them.

The orientation shouldn't matter. Either  spinning your disc alters the gravitational vector or time, or it doesn't.
Logged
helping to stem the tide of ignorance
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #22 on: 22/10/2018 11:15:51 »
Quote from: alancalverd on 22/10/2018 11:01:29
Try an exercise bicycle. Or a gramophone turntable with a weightlifter's 20 kg disc. Or just quote Podkletnov's numbers and I'll find or design something to replicate them.
The orientation shouldn't matter. Either  spinning your disc alters the gravitational vector or time, or it doesn't.
With the aetherwind orientation is everything.
At present Einsteinians have problems with lasers etc -- due to orientation -- & they havent got a clue.
Logged
 

Offline alancalverd

  • Global Moderator
  • Naked Science Forum GOD!
  • ********
  • 10951
  • Activity:
    100%
  • Thanked: 634 times
  • life is too short to drink instant coffee
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #23 on: 22/10/2018 16:56:43 »
Tell me about the laser problem. Mine work pretty well in all directins,to the extent that I can use them to navigate around the world in all directions.

But more importantly, let's have some numbers for your critical experiment. Dimensions and speed of the rotating mass, please, and the expected discrepancy in timing.
Logged
helping to stem the tide of ignorance
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #24 on: 23/10/2018 05:02:40 »
Quote from: alancalverd on 22/10/2018 16:56:43
Tell me about the laser problem. Mine work pretty well in all directions,to the extent that I can use them to navigate around the world in all directions.

But more importantly, let's have some numbers for your critical experiment. Dimensions and speed of the rotating mass, please, and the expected discrepancy in timing.
I believe that lasers suffer from all sorts of problems (walkoff, variations, noise, etc). If u recognize that light travels at c+v & c-v when the background aetherwind is 500 kmps south to north 20 deg off Earth's spin-axis 4.5 hr RA (plus or minus 0.4 kmps of spin plus or minus 30 kmps of orbit) then u might overcome many problems, simply in the first instance by orientating your laser or clock or whatever on a consistent angle relative to the aetherwind, this would require that the laser be in addition gradually swung during 24 hrs (to keep a consistent angle).
Initially u might decide to orientate the laser such that it had a wind blowing squarely across with zero tailwind or headwind, or u might prefer a tailwind with zero crosswind, or u might prefer a headwind with zero crosswind. This could eliminate any change in angle of the wind.
But u would not be able to eliminate a change in magnitude of wind, the best that u could do is to have a wind of say 500 +-  a change of say 2 kmps (not a big deal)(i think angle is more critical).

At present horizontal lasers at Obninsk if badly orientated might feel a wind that changes between 140 kmps & 480 kmps (thats a change of c/882) -- plus a change in wind angle of about 20 deg left to 20 deg right.

Re the experiment. I am not sure what would be better, a giant disc spinning at say 1000 rpm, or a small disc spinning at say 30,000 rpm. Orientation would be fairly important. The weaker the combination of mass & spin rate then the longer duration needed, 4 hrs should be ok.

Making a sandwich of many discs would be good, u might not need to have a dangerous rpm.
« Last Edit: 23/10/2018 05:14:06 by mad aetherist »
Logged
 



Offline alancalverd

  • Global Moderator
  • Naked Science Forum GOD!
  • ********
  • 10951
  • Activity:
    100%
  • Thanked: 634 times
  • life is too short to drink instant coffee
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #25 on: 23/10/2018 09:42:46 »
Just quote the numbers from Podkletnov's experiments, please.
Logged
helping to stem the tide of ignorance
 

Offline Bored chemist

  • Naked Science Forum GOD!
  • *******
  • 21323
  • Activity:
    100%
  • Thanked: 485 times
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #26 on: 24/10/2018 20:56:46 »
Quote from: alancalverd on 23/10/2018 09:42:46
Just quote the numbers from Podkletnov's experiments, please.
Quote from: Bored chemist on 20/10/2018 12:13:43
It's your job to provide the numbers, not our so watch YT.


OK, that's two of us asking, repeatedly, for the numbers.
Please provide them.
Logged
Please disregard all previous signatures.
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #27 on: 03/11/2018 06:27:38 »
Quote from: alancalverd on 23/10/2018 09:42:46
Just quote the numbers from Podkletnov's experiments, please.
Quote from: Bored chemist on 20/10/2018 12:13:43
It's your job to provide the numbers, not our so watch YT.
OK, that's two of us asking, repeatedly, for the numbers. Please provide them.
Ok sorry for my delay. Here is one.........
Weak gravitation shielding properties of composite bulkYBa2Cu3O7−x superconductor below 70K under e.m. field.
E.E. Podkletnov  1997
Abstract.
A high-temperature YBa2Cu3O7−x bulk ceramic superconductor with composite structure has revealed weak shielding properties against gravitational force while in a levitating state at temperatures below 70K. A toroidal disk with an outer diameter of 275mm and a thickness of 10mm was prepared using conventional ceramic technology in combination with melt-texture growth. Two solenoids were placed around the disk in order to initiate the current inside it and to rotate the disk about its central axis. Samples placed over the rotating disk initially demonstrated a weight loss of 0.3-0.5%. When the rotation speed was slowly reduced by changing the current in the solenoids, the shielding effect became considerably higher and reached 1.9% to 2.1% at maximum.
« Last Edit: 03/11/2018 06:30:09 by mad aetherist »
Logged
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #28 on: 03/11/2018 07:04:15 »
Here is another......... https://ac.els-cdn.com/S1875389211005803/1-s2.0-S1875389211005803-main.pdf?_tid=a4a6d683-186b-4102-a3c9-79fd427b0432&acdnat=1541228970_4672c99e680723a2c6a1e49e1d812aca
Reverse Engineering Podkletnov’s Experiments       B. T. Solomon   2011
2. Podkletnov’s 1992 Paper
Figure 1 depicts a diagrammatic representation of Podkletnov’s 1992 experiment [10]. The two types of magnets are used. The toroidal magnet at the bottom was used to levitate the superconducting disk. The two magnets on the sides were used to spin the superconducting disk. The paper suggest that the magnetic fields from these magnets did not contribute to the observed weight loss of the silicon dioxide sample, as a 0.05% weight loss was observed when the superconducting disc was stationary. And test measurements without the superconducting shielding disk, but with all operating solenoids connected to the power supply had no effect on the weight of the sample. There are two important observations. First, observed weight loss of the silicon dioxide sample was 0.05% when the superconducting disc was stationary. And, second, at certain spin speeds the weight loss stabilized at 0.3%. These two observations inform us that the superconducting disc had gravity modifying properties before it was spun…………………
3. Podkletnov’s 1997 Paper
There are more details in Podkletnov’s 1997 paper (see Figure 3) and note several points with respect to the previous discussion of his 1992 paper. First, lateral forces are present. To quote the paper, “Because of considerable disc vibration at 3000-3300 rpm, the disc had to be rapidly braked in order to avoid unbalanced rotation . . .”. Second, the disc size was increased from a diameter of 145 mm to 275 mm. This would imply that the centripetal g-forces have increased to a maximum of 98 g’s. Third, the weight loss ranged between 0.3% and 0.5% (2007 email from Podkletnov) without disc spin but with an internal current in the ceramic. This would suggest that the internal current and the resulting magnetic field would have been a factor in the gravity shielding effect. And that somehow spin may amplify this shielding effect……………………………
Fourth, that when spinning, the weight loss is greater at the outer edge of the spinning toroidal disk, than at the inner edge. This would imply that this weight loss effect is some function of the radial distance from the center. From the perspective of a Ni field the tangential velocity due to spin could not create the necessary vertical Ni field as the spin velocity would not change along the vertical axis. However, the tangential velocity is changing along the radial axis of the disk, in the plane of the disk, and therefore the centripetal forces. Therefore, the spin tangential velocity Ni field is present in the plane of the disc but not orthogonal to it. A tangential velocity, however, would be a factor in the orthogonal Ni field if it changed (increased or decreased) along a vertical axis. If this were the phenomenon then it could match the experimental observations. And fifth, that something of the form of gravity shielding was in effect. One infers that weight loss was observed independently of the angle of the tilt of the spinning superconducting disk, or even the height of the sample above the disk. If this weight loss was a function of the orthogonal surface of the disk, there would be specific angles of tilt when weight loss would not be observed. This was not the case. Therefore, the weight loss was only aligned with the gravitational field and directly above the surface of the disc shielding the gravitational field. No weight loss was observed below the cryostat. See Figure 4. Thus the disc must have genuine shielding properties that align with the gravitational field. The rebuttal [15] that gravity shielding cannot be valid, is flawed in that it does not take into account that gravity is a vector field such that the horizontal vector components cancel leaving only the vertical vector component which cause downward accelerations…………………
This is an important observation. It informs us that gravity modification can take two forms. First is gravity modulation, the ability to attenuate (shield) or amplify (intensify) the field strength. This is reported in both [10, 11] papers. The second is the field vectoring, or a directed force field, the use of fields to change the direction of force. The sixth and most important point is that the ceramic disc consisted of two layers. The top layer was superconducting, while the bottom layer was not. The lesson from the Podkletnov’s 1992 paper is that the magnetic field has to be asymmetrical. The dual layer structure of the ceramic disc suggests a real possibility of this asymmetrical field structure. Figure 5 shows two of many possible magnetic field structures, top-side and bottom-side……………………
…………………….The stationary disc weight loss varied between 0.05% to 0.07% [11]. However, it is not clear at which radial, inner, outer or middle positions Podkletnov observed this 0.05% to 0.07% weight loss. Given that a superconducting magnetic field is essentially horizontal in the middle of the disc, would suggest that the weight loss was observed either on the outer or inner edges of the disc. The experimental layout would suggest that these measurements were observed on the outer edges of the superconducting disc.
« Last Edit: 03/11/2018 07:07:18 by mad aetherist »
Logged
 



Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #29 on: 03/11/2018 07:39:03 »
Here is a good overview........
Gravity and Antigravity      David Pratt
http://davidpratt.info/gravity.htm
Logged
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #30 on: 03/11/2018 09:15:46 »
Antigravity > Other antigravity machines and devices
Bruce DePalma - Inertial Field Experiment        Pages: (1/1)
andros:
Stefan (et al),
You may recall me from the days I served as Bruce DePalma's personal secretary from 1988-1997.  Many years have passed since his untimely death, and I continue to be possessed by a sense of loyalty to his work and memory.
In short, I strongly encourage anyone in the field of science & technology to pursue the replication of this pioneering experiment conducted originally by DePalma:


Appendix 1 - 18 June 1975 Simple Experimental Test for the Inertial Field of a Rotating Real Mechanical Object
(from: http://depalma.pair.com/Absurdity/Absurdity09/NatureOfElectricalInduction.html)
Introduction: For the last five years, this investigator and others1, have studied the mechanical properties of rotating objects for the purpose of application of certain heretofore undiscovered properties of rotation to new forms of propulsion machinery and machines with anti-gravitational effect. The course of this investigator has not been to try to perfect new propulsion machinery, per se, but however to thoroughly investigate the phenomena of rotation.

The result of a great deal of experimentation (see appendix), has resulted in a picture which relates the performance of certain non-conventional machinery: Dean, Laithwaite, Wolfe, DePalma, to a variable inertia property which can be engendered through motion of a rotating object.

In terms of the acceptance of a new body of information relating to the properties of rotating objects and variable inertia, a simple experiment has to be devised which clearly demonstrates the new phenomena. In the performance of experiments with large rotating flywheels, there are great experimental difficulties which result from experimenting on the large rotating flywheels themselves. Through a series of corroborating experiments it has been established the anisotropic inertial properties of a rotating object are conferred on the space around the object. That is to say the space around a rotating object will have conferred upon it an inertial anisotropy. Let us ascribe this to the setting up of an od (odd) field through rotation of a real physical object. The purpose of the experiment to be described is the determination of one of the properties of an od field. The anisotropic inertia property.

The Experiment: A good way to detect a field whose effect is a spatial inertial anisotropy is to use a time measurement based on an inertial property of space and compare it to a remote reference. With reference to figure ( 1 ) we have a situation where the timekeeping rate of an Accutron tuning fork regulated wrist watch is compared to that of an ordinary electric clock with a synchronous sweep second hand.

The Accutron timepiece is specified to be accurate to one minute a month. Examination of the relative time drift of the Accutron - electric clock combination shows a cumulative drift of .25 second Accutron ahead for 4 hours of steady state operation. This is within the specification of the watch.
Figure 1 -- (see hyperlink below)
http://depalma.pair.com/Absurdity/Absurdity09/nature5.jpg
With the flywheel spinning at 7600 r.p.m. and run steadily for 1000 seconds (17 minutes), the Accutron loses .9 second relative to the electric clock.

Much experimentation has shown that the effect is greatest with the position of the tuning fork as shown. Magnetic effects from leakage fields from the gyro drive motors are almost entirely absent; any remaining leakage is removed by co-netic magnetic shielding. The Accutron is also in a "non-magnetic" envelope.

The purpose of the experiment is a simple demonstration of one of the effects of the od field of a rotating object. The demonstration may easily be repeated using any one of a variety of rotating objects, motor flywheels, old gyrocompasses, etc. The rotating mass of the flywheels used in these experiments is 29 1/2 pounds. The rotational speed of 7600 r.p.m. is easily accessible. The effect is roughly proportional to the radius and mass of the rotating object and to the square of the rotational speed.

Finer measurements can be made using an external electrically powered tuning fork oscillator and an electronic frequency counter. In this case the inertial anisotropy of the od field of a rotating object can be much more quickly and precisely measured. Field strength lines can be plotted along contours of constant frequency shift for the two orientation conditions of fork vibration direction parallel to, and perpendicular to, the axis of rotation of the test object.

Conclusions and Observations: The proper conclusions and evaluations of the above experiment will affect present conceptions of Cosmology. Before this can happen, simple tests must be performed to show the existence of a new phenomenon. It is hoped the apparatus for the performance of these tests is widely enough available to lead to quick verification.
Bruce DePalma

« Last Edit: 03/11/2018 09:19:08 by mad aetherist »
Logged
 

Offline Bored chemist

  • Naked Science Forum GOD!
  • *******
  • 21323
  • Activity:
    100%
  • Thanked: 485 times
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #31 on: 03/11/2018 12:15:55 »
OK, looking at the first one, they talk about a 2% change in mass. I could measure that with my kitchen scales.
It would be a fairly easy experiment to set up for any university lab.

So why hasn't it been repeated?
Logged
Please disregard all previous signatures.
 

Offline mad aetherist (OP)

  • Hero Member
  • *****
  • 820
  • Activity:
    0%
  • Thanked: 16 times
  • Naked Science Forum Newbie
    • View Profile
Re: Re: Have gravity modification experiments been conducted?
« Reply #32 on: 03/11/2018 14:01:03 »
Quote from: Bored chemist on 03/11/2018 12:15:55
OK, looking at the first one, they talk about a 2% change in mass. I could measure that with my kitchen scales.
It would be a fairly easy experiment to set up for any university lab. o why hasn't it been repeated?
Yes, why?
Logged
 



  • Print
Pages: 1 [2]   Go Up
« previous next »
Tags:
 
There was an error while thanking
Thanking...
  • SMF 2.0.15 | SMF © 2017, Simple Machines
    Privacy Policy
    SMFAds for Free Forums
  • Naked Science Forum ©

Page created in 0.137 seconds with 62 queries.

  • Podcasts
  • Articles
  • Get Naked
  • About
  • Contact us
  • Advertise
  • Privacy Policy
  • Subscribe to newsletter
  • We love feedback

Follow us

cambridge_logo_footer.png

©The Naked Scientists® 2000–2017 | The Naked Scientists® and Naked Science® are registered trademarks created by Dr Chris Smith. Information presented on this website is the opinion of the individual contributors and does not reflect the general views of the administrators, editors, moderators, sponsors, Cambridge University or the public at large.