Article View: sci.physics
Article #15550Re: Spacetime is Absolute (only Space & Time Relative)
From: Pentcho Valev
Date: Sat, 03 Dec 2011 17:03
Date: Sat, 03 Dec 2011 17:03
36 lines
3400 bytes
3400 bytes
On Dec 3, 5:25 pm, Tom Roberts <tjroberts...@sbcglobal.net> wrote in sci.physics.relativity: > But certainly "length contraction" and "time dilation" in relativity do not > involve any sort of "change" in the object itself, they are indeed due to > being "seen, so to speak, from different angle" (4-d angles, of course). > Tom Roberts Absolutely correct, Honest Roberts. Silly brothers Einsteinians claim that the pole is "trapped IN A COMPRESSED STATE inside the barn": http://math.ucr.edu/home/baez/physics/Relativity/SR/barn_pole.html "These are the props. You own a barn, 40m long, with automatic doors at either end, that can be opened and closed simultaneously by a switch. You also have a pole, 80m long, which of course won't fit in the barn. (...) If it does not explode under the strain and it is sufficiently elastic it will come to rest and start to spring back to its natural shape but since it is too big for the barn the other end is now going to crash into the back door and the rod will be trapped IN A COMPRESSED STATE inside the barn." http://www.parabola.unsw.edu.au/vol35_no1/vol35_no1_2.pdf Parabola Volume 35, Issue 1 (1999), LENGTH AND RELATIVITY by John Steele: "Suppose you want to fit a 20m pole into a 10m barn. (...) Hence in both frames of reference, the pole fits inside the barn (and will presumably shatter when the doors are closed)." ...but clever brothers Einsteinians (you are among them, Honest Roberts) know that there can be no compression, shattering etc. If silly brothers could look at the trapped pole from the correct angle, they would see no compression, shattering etc. Am I right, Honest Roberts? Pentcho Valev pvalev@yahoo.com
Technical Details
Message-ID:
<12c876c2-a0dc-4c38-b758-6386503ca85a@u5g2000vbd.googlegroups.com>Path:
arc1-ca.pugleaf.net!ty4ni116bkb.0!nntp.google.com!news2.google.com!postnews.google.com!u5g2000vbd.googlegroups.com!not-for-mailReferences:
<3d20263c-8ce2-49d7-b869-e4bf3eaf7602@d17g2000yql.googlegroups.com> <dfmdnQtHF5kS0EfTRVn_vwA@giganews.com>Show Full Headers
Complete Article Headers
X-Google-Thread: 111645,6965c856a78cb7ba,start
X-Google-NewGroupId: yes
X-Google-Attributes: gid237b8ad48,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII
Received: by 10.205.128.15 with SMTP id hc15mr118408bkc.7.1322931837347;
Sat, 03 Dec 2011 09:03:57 -0800 (PST)
Path: arc1-ca.pugleaf.net!ty4ni116bkb.0!nntp.google.com!news2.google.com!postnews.google.com!u5g2000vbd.googlegroups.com!not-for-mail
From: Pentcho Valev <pvalev@yahoo.com>
Newsgroups: sci.physics,sci.physics.relativity,sci.astro,fr.sci.physique,fr.sci.astrophysique
Subject: Re: Spacetime is Absolute (only Space & Time Relative)
Date: Sat, 3 Dec 2011 09:03:56 -0800 (PST)
Organization: http://groups.google.com
Lines: 36
Message-ID: <12c876c2-a0dc-4c38-b758-6386503ca85a@u5g2000vbd.googlegroups.com>
References: <3d20263c-8ce2-49d7-b869-e4bf3eaf7602@d17g2000yql.googlegroups.com>
<dfmdnQtHF5kS0EfTRVn_vwA@giganews.com>
NNTP-Posting-Host: 83.228.11.73
Mime-Version: 1.0
X-Trace: posting.google.com 1322931837 5666 127.0.0.1 (3 Dec 2011 17:03:57 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Sat, 3 Dec 2011 17:03:57 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: u5g2000vbd.googlegroups.com; posting-host=83.228.11.73; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ
User-Agent: G2/1.0
X-Google-Web-Client: true
X-Google-Header-Order: ARLUEHNKC
X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64;
Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR
3.0.30729; Media Center PC 6.0; CPNTDF; .NET4.0C),gzip(gfe)
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable