HDTenEightyP/NetNews huggingface dataset:
From: daryl@oracorp.com (Daryl McCullough)
Subject: Re: Lowneheim-Skolem theorem (was: Continuos vs. discrete models)
Organization: ORA Corporation
Date: Tue, 17 Nov 1992 12:42:33 GMT

columbus@strident.think.com (Michael Weiss) writes:

>In short: there may be good reasons for radically changing the foundations
>of physics (and there may not-- pace, defenders of the status quo(ntum)!),
>but the Loewenheim-Skolem theorem is not one of them.

LS doesn't demand that we adopt Paul Budnik's discretized physics, but
I believe it gives us permission to do so. LS shows that there can
never be a demonstration that space-time must be continuous, because
there is no property of an uncountable set that doesn't also hold of
some countable set.

Daryl McCullough
ORA Corp.
Ithaca, NY
From: sichase@csa2.lbl.gov (SCOTT I CHASE)
Newsgroups: sci.physics
Subject: Re: History of AC vs DC Power >>THE TRUTH!<< *=*
Date: 16 Nov 1992 10:07 PST
Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA
Distribution: world
NNTP-Posting-Host: 128.3.254.197
News-Software: VAX/VMS VNEWS 1.41    

In article <1992Nov14.031550.3376@cs.rochester.edu>, dietz@cs.rochester.edu (Paul Dietz) writes...
>In article <Qf10GGi00WBOQ4orMH@andrew.cmu.edu> Kevin William Ryan <kr0u+@andrew.cmu.edu> writes:
> 
>>    The best way to do the AC/DC conversion that I know of is paired
>>motor/generator sets, but these are considerably clunkier than
>>transformers. Higher voltages are de rigeur for long transmission, but
>>nasty for plugging in the toaster, so the conversion is important.
> 
>No, motor generators are mostly obsolete.  It's done with power
>electronics these days (banks of thyristors).

The Bevalac still uses several MG sets to provide the megawatts/kiloamps
necessary to run the accelerator and detector magnets.  They are huge monsters,
which take hours to warm up, make more noise than you can tolerate for
more than a few minutes without earplugs, and, alas, often have problems.
When one of them had a bad coil last year, it was offline for something
like 3 months while GE (I think) figured out how to rewind it.  In the 
meantime, the machine could not produce beams more than half the maximum
energy.  

Does anyone know how newer accelerators, like the Tevatron, generate 
DC for their magnets?

--------------------
Scott I. Chase			"It is not a simple life to be a single cell,
SICHASE@CSA2.LBL.GOV		 although I have no right to say so, having
				 been a single cell so long ago myself that I 
				 have no memory at all of that stage of my 
				 life." - Lewis Thomas
Newsgroups: sci.physics
From: abian@iastate.edu (Alexander Abian)
Subject: Re: TIME HAS INERTIA. ABIAN replies to PING
Keywords: Principles (A1)  and (A2).  Repelling Forces explained
Organization: Iowa State University, Ames IA
                                           11-17-92
      
   In your latest posting addressed to me, you are writing:
Date: Wed, 18 Nov 1992 03:25:58 GMT

>  Hmm.  This sounds extremely circular to me.  I barely even had to type the
>second sentence (just cut and paste).  Sounds like you're not answering
>anything.

     Several times you have mentioned to me  " Abian, you're not answering
anything".

     Well, I am answering this:  I am not forcing you to read TIME HAS

INERTIA.  Put this subject on your Kill File, like many have already done.
 
     Sincerely,
                                              Alexander Abian
-- 
   The tendency of maintaining the status-quo, Reaction to provocation and
                The tendency of maintaining again a status-quo.  
    TIME HAS INERTIA  and some energy is lost to move Time forward  
  E = mcc  (Einstein)    must be replaced by    E = m(0) exp(-At) (Abian)
From: bweiner@ruhets.rutgers.edu (Benjamin Weiner)
Newsgroups: sci.physics
Subject: Re: energy, mass, and all that
Date: 23 Nov 92 01:06:56 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

matmcinn@nuscc.nus.sg (Brett McInnes) writes:
>bweiner@ruhets.rutgers.edu (Benjamin Weiner) writes:
>: 
>: Look, Martin, it seems that you do understand this.  Rest mass is not
>: conserved in e+ e- -> photons.  

>Err...Ben...would you like to modify this a little? Surely the rest mass
>has to be conserved if the 4-momentum is?

Thanks for the offer of a graceful exit, but I think I'll just plunge
in ... What's the rest mass of a photon?  What Lorentz frame would
you measure it in?  As Matt Austern says, the best definition of rest
mass is probably "the mass of the object as measured in the frame in which
it is at rest."

-Ben
------
"When J. Edgar Hoover gives you a requirement for complete
[telecommunications] surveillance of all Quakers in the United States,
when Richard M. Nixon is a Quaker and he's the President of the United
States, it gets pretty funny."  - Frank Raven, retired NSA official
Newsgroups: sci.physics
From: mccall@mksol.dseg.ti.com (fred j mccall 575-3539)
Subject: Re: UFO EVIDENCE VS. Carl Sagan
Organization: Texas Instruments Inc
Date: Wed, 18 Nov 1992 20:49:59 GMT

In <1992Nov11.204055.2280@cnsvax.uwec.edu> mcelwre@cnsvax.uwec.edu writes:

>          
>          
>                           UFO EVIDENCE VS. Carl Sagan

>               I watched all of Dr. Carl Sagan's updated "Cosmos" 
>          programs on PBS during summer 1991.  In one of them, he STILL 
>          maintains that there is no physical evidence for UFO 
>          Spacecraft, "just stories". 
>    
>               I should think that by now he would have heard about the 
>          Roswell Incident in which UFO WRECKAGE and ALIEN BODIES were 
>          found on a ranch (in New Mexico, I think), gathered up by the 
>          U.S. military, and hidden away in an Air Force hanger 
>          somewhere.  

Bwwaaaahahahahahahahahahahaha!

Sorry, couldn't resist.  If you think this is more than "just
stories", you're being very accepting of unsupported data.  Has ANYONE
turned up any proof that this is anything other than 'just stories'?
And please, no alibis about how 'they' are hiding it.  Just yes or no.


-- 
"Insisting on perfect safety is for people who don't have the balls to live
 in the real world."   -- Mary Shafer, NASA Ames Dryden
------------------------------------------------------------------------------
Fred.McCall@dseg.ti.com - I don't speak for others and they don't speak for me.
From: crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass)
Newsgroups: sci.physics
Subject: Re: Number of "religious scientists"
Date: 23 Nov 92 01:30:28 GMT
Organization: University of Virginia

In article <1992Nov23.004621.5136@access.usask.ca> choy@skorpio.usask.ca (I am a terminator.) writes:
>
>An atheist believes that the statement "God exists" is false. Certainly
>a scientist should not be an atheist because no scientific evidence
>exists to prove that God does not exist. It's like believing the

     This is predicated on the assumption that that scientific beliefs
     are the only beliefs.  Fortunately, this is not so (what a dry and
     frightening world it would be if it were). Certainly there is nothing in
     science to prevent one from being an atheist, just is there is nothing to 
     prevent one from being a theist.

>nonexistence of stars 1 trillion light years from us simply because no
>evidence exists for their existence. I have not seen evidence supporting
>the existence of God. I have not seen a formal account of what God is.
>How can anyone prove anything about God?

     This is the reason that the question is undecidable within science.

                               dale bass
-- 
C. R. Bass                                          crb7q@virginia.edu        
Department of Mechanical, 
     Aerospace and Nuclear Engineering
University of Virginia                              (804) 924-7926
Newsgroups: sci.physics
From: jbaez@riesz.mit.edu (John C. Baez)
Subject: Mass psychosis again?
Organization: MIT Department of Mathematics, Cambridge, MA
Date: Sun, 22 Nov 92 22:59:54 GMT

In article <mcirvin.722374031@husc8> mcirvin@husc8.harvard.edu (Mcirvin) writes:
>matmcinn@nuscc.nus.sg (Brett McInnes) writes:
>
>>bweiner@ruhets.rutgers.edu (Benjamin Weiner) writes:
>>: 
>>: Look, Martin, it seems that you do understand this.  Rest mass is not
>>: conserved in e+ e- -> photons.  
>
>>Err...Ben...would you like to modify this a little? Surely the rest mass
>>has to be conserved if the 4-momentum is?
>
>Heh, heh.  The rest mass of the whole system, yes.  The rest mass of the
>individual particles, no.
>
>I'm so glad to see sci.physics drop into this quagmire again... it's
>like an old friend.

Ugh.  With friends like this...

Mass is the square root of energy squared minus momentum squared (in
units where c = 1).  Energy, mass, momentum are all different (although
obviously related) and all conserved.  The rest mass of a system of
particles is conserved but not necessarily the sum of the rest masses of
its components.

While in Utah basking in the snow, I went to a nice talk about physics
education.  It noted that a shocking percentage of physics grad students
never had mastered the concept of force.  For example, if you asked them
why a small car could push a big truck, accelerating it, many of them
circled the answer that said "because the car is pushing with more force
on the truck than the truck is on the car."  I would hate to see what
percentage of physics PhD's understood relativistic mass!  :-)  (I think
all those cited above *do* understand it, btw.)
From: bweiner@ruhets.rutgers.edu (Benjamin Weiner)
Newsgroups: sci.physics
Subject: Re: Top 10 Cited References in the 80's
Date: 23 Nov 92 01:37:14 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

andrew@rentec.com (Andrew Mullhaupt) writes:
>Here's my suggestion: Publish an incorrect [top 10 cited] list. Everyone who complains
>gets his tenure (or equivalent) revoked. Next suggestion: Physics should
>order authors alphabetically. Final suggestion: all journals drop little
>biographies and pictures of authors, and authors use initials instead
>of names.

I like the first one!!  But the next is bad, you'd just have people refusing 
to work with anyone who came ahead in the alphabet.  In the novel "Cantor's
Dilemna" by the chemist Carl Djerassi there is a character, a biologist,
who in grad school changed her name from Yardley to Ardley for this 
reason.  In the foreword Djerassi says that he knew a real person who did
a similar name-change.  And I don't like the last suggestion - the initials
in journals like Phys Rev are annoyingly impersonal.  I prefer the
practice in some astronomy and most biology journals, where first names
are allowable.  It makes the authors more human.
Newsgroups: sci.physics
From: ledwards@leland.Stanford.EDU (Laurence James Edwards)
Subject: Re: TIME HAS INERTIA - THE ENVIOUS-DESPONDENT REACTION OF CHASE
Keywords: TIME HAS INERTIA,  i.e., TIME IS MATTER
Organization: DSG, Stanford University, CA 94305, USA
Date: Tue, 17 Nov 92 23:24:13 GMT

Abian wrote:
[...]
|> > I have to tell you that General Relativity is beta-sigma.  It is a
|> >unsubstantiated beta-sigma. A group of hallucinating, self-adoring,
|> >self-massaging,  pseudo-scientists in a total stage of  beta-sigma
|> >delirium have decided (for the  satisfaction of their own sense of
|> >warped depravity) that The Cosmos is a semi-differentiable 4 dimensional 
|> >Riemannian manifold. 
[...]

Wow that's classic ... I think I'll put that in my finger
plan. I must say, if nothing else, Mr. Abian is amusing.

Larry Edwards
From: antennae@gn.apc.org
Newsgroups: sci.physics
Subject: Re: Abian and the Fundamental Theorem o
Date: 21 Nov 92 22:22:00 GMT
Nf-ID: #R:1992Nov19.161552.1055@oracorp.co:-2022843694:gn:1541700006:000:276
Nf-From: gn.UUCP!antennae    Nov 21 22:22:00 1992



Well now, how about that for a voice of reason?

May I ask an ignorant question?  If space-time is a continuum, then
how is it that we can move in many directions in space but only one
direction in time?  Or is this an illusion?  Or does my question have
no meaning?

Indra
Newsgroups: sci.physics
From: palmer@sfu.ca (Leigh Palmer)
Subject: Re: W-waves
Organization: Simon Fraser University
Date: Thu, 19 Nov 1992 19:14:05 GMT

In article <11362@sun13.scri.fsu.edu> jac@ds8.scri.fsu.edu (Jim Carr) writes:

>BTW, those who complain about the unmoderated nature of sci.physics have 
>obviously not read the abstracts for the national meeting of the APS.  I 
>keep waiting for mcelwain to discover the collected works of S.M.Ayub 
>or Bryan Wallace or .....

N. Efremov, who submitted numerology papers under the guise of nuclear physics
to APS meetings back in the sixties. He never showed up at a meeting, so far as
I was able to determine, so his autograph should be a real challenge to you,
Jim.

Readers who are not members of the APS should be informed that the delivery of
a paper at an APS meeting is (or was) a privilege of membership (I'm no longer
a member). In the olden days they let anyone into the APS who had the money to
pay. Thus many kooks published abstracts right alongside the more orthodox,
established incompetents. :-))

Leigh
From: norm@inqmind.bison.mb.ca (Norman P. Paterson)
Newsgroups: sci.physics
Subject: PLEASE HELP!
Date: Thu, 19 Nov 92 22:51:37 CST
Organization: The Inquiring Mind BBS  1 204 488-1607

I'VE TOYED WITH THE PV=NRT FORMULA FOR GASES.  I'M DESIGNING A SMALL 
AIRHSIP AND WISH TO CALCULATE THE EXPANSION OF THE HELIUM.  YOU COULD
REALLY HELP ME OUT IF YOU COULD TELL ME HOW TO USE THIS FORMULA PROPERLY.
I'D LIKE TO GIVE A PRACTIAL EXAMPLE AND PERHAPS YOU COULD EXPLAIN TO 
MYSELF HOW TO APPLY THIS FORMULA TO THE PROBLEM (OR ANY OTHER PERTINENT 
FORMULA).
- Take a aluminium ball with a voulume of 100 cu/meters.  Say that this 
ball is indestructible.  The ball is filled with helium gas on the ground 
(the gas is 99.9% pure).  Now, take this ball to an alititude of 100,000 
feet.  What would the internal pressure be of the ball (or helium)?


Well, thanks!
Norman Paterson
Wpg MB CANADA

norm@inqmind.bison.mb.ca
The Inquiring Mind BBS, Winnipeg, Manitoba  204 488-1607
Newsgroups: sci.physics
From: jbaez@riesz.mit.edu (John C. Baez)
Subject: Re: Ghostbusters
Organization: MIT Department of Mathematics, Cambridge, MA
Date: Sun, 22 Nov 92 23:13:23 GMT

In article <1541700010@gn.apc.org> antennae@gn.apc.org writes:
>
>
>My 7 year old son won't go upstairs on his own because he is afraid
>of ghosts.  I told him I'd give him a 'charm' to scare them off and
>found a tiny, beautifully carved and painted, soapstone tiger which
>seems to have done the trick.
>
>Can you physicists do as well? 

I would simply show him a proof of the no-ghosts theorem.
From: jimtan@earth.monash.edu.au (Jianjun Tan)
Subject: Re: A remote sensing newsgroup?
Reply-To: jimtan@earth.monash.edu.au
Organization: Monash University Dept of Earth Sciences
Date: Fri, 13 Nov 1992 13:33:32 GMT

In article 10306@udel.edu, chettri@huey.udel.edu (Expressio Veri) writes:
> In article <Bx4ynB.BCI@newcastle.ac.uk> D.J.Hutt@newcastle.ac.uk (D.J. Hutt) writes:
> >
> DUNCAN>Yes,
> DUNCAN>I thought that sci.image.processing was going to be relavent but 
> DUNCAN>until this article I havn't understood a word of it for mont

....(delete)

> I agree with this. 
> 
> Also, as a request, I am looking for satellite image data with 
> associated ground truth. Does anyone know of an archive site
> with such data? Or, does anyone on this net  have such data that
> they will be willing to share? I'm working on neural nets and
> satellite image classification and would be willing to pass on
> results, experiences etc.
> 
> I'l be also willing to open up  some kind of archive site if there is 
> sufficient satellite data available.
> 
> Samir

It's a good idea that one dataset be shared for several users. Maybe someone uses it in
geography, someone in geology or others.
Post notice to the group before purchasing.

Jim


Newsgroups: sci.image.processing
From: cptully@med.unc.edu (Christopher P. Tully,Pathology,62699)
Subject: Re: Image Processing Listserv
Reply-To: cptully@med.unc.edu
Organization: UNC-CH School of Medicine
Date: Fri, 20 Nov 1992 15:26:50 GMT

In article 3839@samba.oit.unc.edu, Bill.Barnett@launchpad.unc.edu (Bill Barnett) writes:
>Is there a listserve bulletin board for scientific image processing?  Could
>someone provide me with the relevant information?
>Thanks in Advance.
>
>Bill Barnett            barnett@mac2.amnh.org
>American Museum of Natural History
>The Big Apple
>

Yes, Please post this info...

---
*********************************************************************
Chris(topher) P. Tully				<cptully@med.unc.edu>
Univ. of North Carolina - Chapel Hill		1122 Vic Charles Dr.
Department of Pathology				Raleigh, NC 27606
CB# 7525			work: (919) 966-2699
Chapel Hill, NC 27599		hone: (919) 851-8816
*********************************************************************
I get paid for my opinions, but that doesn't mean that UNC or anybody
                     else agrees with them.

Newsgroups: sci.image.processing
From: jakhan@IASTATE.EDU (Javed Ahmed Khan)
Subject: Image Registration algorithms
Reply-To: jakhan@IASTATE.EDU (Javed Ahmed Khan)
Organization: Iowa State University
Date: Mon, 23 Nov 1992 14:53:44 GMT


Hi

I need references for fast algorithms which perform registration
of images (correcting translation, rotation and magnification).
I would appreciate it if someone could give any pointers.

Thanx.

--Javed.
Newsgroups: sci.image.processing
From: hazra@nimbus.larc.nasa.gov (Rajeeb Hazra)
Newsgroups: sci.image.processing
Subject: Reconstruction, Randomly spaced data.
Date: 19 Nov 1992 16:19:17 GMT
Organization: NASA Langley Research Center, Hampton, VA  USA
Distribution: world
NNTP-Posting-Host: nimbus.larc.nasa.gov
Keywords: reconstructiuon, interpolation


Hello,


     A few days ago someone posted a survey of articles (or actually a bibliography of  articles)
     that discussed the interpolation of non-uniformly sampled data. Could some kind soul please
     e-mail me a copy of that posting ?

     Thanks.

Rajeeb Hazra.
Organization: University of Maine System
Date: Wednesday, 18 Nov 1992 11:11:38 EST
From: <NOVAK@MAINE.MAINE.EDU>
Newsgroups: sci.image.processing
Subject: best bands for geol. mapping

I would be happy to receive comments about the best LANDSAT bands
and their RBG assignments for geologic interpretation of LANDSAT
images.  I am using the program called RSVGA.   Thanks.  Responses
can be sent direct to me address above or on BITNET to Noavk
at Portland.
From: xchen@staccato.rutgers.edu (Xinghao Chen)
Newsgroups: sci.image.processing
Subject: CCD camera, plug-in board on PC
Keywords: CCD camera, plug-in board
Date: 17 Nov 92 00:24:54 GMT
Organization: Rutgers Univ., New Brunswick, N.J.


Hello there:

   I need informations on the following products:

     1. CCD camera
     2. Scanner
     3. image grabing board for PC platforms, such as PC with 286, 
        386 or 486 CPUs

   I need the phone numbers or addresses of manufactures and/or distributors.
   Drop any related information at xchen@caip.rutgers.edu.

   Thanks.

   -Chen
Newsgroups: sci.image.processing
From: Bill.Barnett@launchpad.unc.edu (Bill Barnett)
Subject: Image Processing Listserv
Organization: University of North Carolina Extended Bulletin Board Service
Distribution: usa
Date: Thu, 19 Nov 1992 20:58:25 GMT

Is there a listserve bulletin board for scientific image processing?  Could
someone provide me with the relevant information?
Thanks in Advance.

Bill Barnett            barnett@mac2.amnh.org
American Museum of Natural History
The Big Apple



--
   The opinions expressed are not necessarily those of the University of
     North Carolina at Chapel Hill, the Campus Office for Information
        Technology, or the Experimental Bulletin Board Service.
           internet:  laUNChpad.unc.edu or 152.2.22.80
Newsgroups: sci.image.processing,comp.graphics
From: mdfpph@ultb.isc.rit.edu (M.D. Fairchild)
Subject: Re: Grad Schools and Image Processing...
Originator: mdfpph@ultb
Organization: Rochester Institute of Technology
Date: Mon, 16 Nov 1992 16:23:38 GMT

In article <199211131503.AA03733@tuna.wang.com> IMAGING.CLUB@OFFICE.WANG.COM ("Imaging Club") writes:
>Awais Zakauddin at USC writes:
>
>>Could someone give me names of schools with strong research activities
>in image processing?  I'm looking for somewhere to go for my Phd.
>

I can't help plugging our own program here at the Center for Imaging
Science at the Rochester Institute of Technology.  As far as we know,
it's the only Ph.D. program in Imaging Science in the U.S.A.  We also
have B.S. and M.S. programs in Imaging Science and an M.S. program in
Color Science.  I'm personally into Color Science, but we've got some
good people here working in digital image processing as well.

-Mark


Newsgroups: sci.image.processing
From: mnl10@cus.cam.ac.uk (M.N. Landauer)
Subject: Volumetric rendering
Organization: U of Cambridge, England
Date: Mon, 23 Nov 1992 14:33:04 GMT

Does anyone know of a public domain volumetric display (i.e true 3D data display)
package that works under X-Windows, preferrably (but not essentially) using the
XView toolkit.

Thanks in advance,

Matthew

Cavendish Lab
Newsgroups: sci.image.processing
From: fred@dip3.ee.uct.ac.za (Fred Hoare)
Subject: Display of 16 bit images
Summary: software to display 16 bit images
Date: 22 Nov 92 07:17:17 GMT
Organization: University of Cape Town
Keywords: display,images,software

I (and the other people in my lab) have a requirement to be able
to display 16 bit greyscale images on a Sun workstation. We have
several pieces of software that display images, but they all convert
the images to 8 bit first. What we require is a display routine that
would allow a person to choose what intensity range in the image was
displayed on the screen, at any time. I presume this would be done by 
changing the way the lookup table gets mapped to the data.

Does anyone know of software under X11 that is capable of doing this?

Thanks in advance for any replies.
Fred
--
Frederick Hoare                email: fred@dip1.ee.uct.ac.za
Image Processing Laboratory
Department of Electrical and Electronic Engineering
University of Cape Town,  South Africa
From: M.Karpuz@uib.no (M. Ridvan Karpuz)
Newsgroups: sci.image.processing
Subject: JPL Interactive Geol.  Interpretation System (IGIS) ?
Date: 15 Nov 92 13:48:07 GMT
Organization: Univ. of Bergen, Geol. Inst.
X-Useragent: Nuntius v1.1b2


Hello,
I am trying to get hold of information on the JPL's Interactive
Geological Interp. System (IGIS) which operates on the Macintosh
computer. 
Can any body help me ??  Thanks.
Ridvan
From: spl@szechuan.ucsd.edu (Steve Lamont)
Newsgroups: sci.image.processing
Subject: Re: Sun Raster to YUV conversion
Date: 22 Nov 1992 19:52:47 GMT
Organization: University of Calif., San Diego/Microscopy and Imaging Resource
NNTP-Posting-Host: szechuan.ucsd.edu

In article <manoj.722458133@dgbt.doc.ca> manoj@dgbt.doc.ca (M. K. Jain) writes:
>How can I convert a SUN rasterfile (of depth 8 and a RGB color map)
> to separate YUV components. Any pointers will be highly appreciated. 

pbmplus does it.

	rasttoppm foo | ppmtoyuv > bar

Fish up pbmplus at your favorite FTP site (wuarchive.wustl.edu, for
instance).  It also comes with the contributed files in the X11R5 distribution.

							spl
-- 
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@szechuan.ucsd.edu
UCSD Microscopy and Imaging Resource/UCSD Med School/La Jolla, CA 92093-0608
"Bosnia has no gun control."
			- random thought
Newsgroups: sci.image.processing