Some Contradictory Claims of SR.
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From: BURT on 12 Jun 2010 16:03 On Jun 12, 10:21 am, PD <thedraperfam...(a)gmail.com> wrote: > On Jun 12, 9:07 am, kenseto <kens...(a)erinet.com> wrote: > > > > > > > > No from the hole point of view the bug is still alive just before the > > > > > > head of the rivet hits the wall of the hole. However from the rivet > > > > > > point of view the bug is already deadat the just before the head of > > > > > > the rivet hit the wall of the hole. > > > > > > Pick on perspective or the other, Seto. You can't have both! > > > > > Wormy the bug cannot be both alive and dead at the moment when the > > > > head of the rivet hits the wall of the hole....both observers must > > > > agree on whether the bug is alive or dead but not both. > > > > No, Ken. > > > The order of events is frame dependent. > > > It is not true that both observers must agree on the state of the bug > > > *when* the rivet head hits. > > > The "when" is the part that trips you up. > > > Hey idiot... the bug is dead or alive is an absolute event > > "Absolute event" is a term you made up, and has no meaning in physics. > The word "event" has a specific meaning in physics, even if you're > unaware of it. > The order of spacelike-separated events depends on the frame. > > > The hole > > clock and the rivet clock are running at different rates give you the > > two perspective. When you corrected for the rate difference you will > > see that the rivet's perspective is the correct perspective. > > In physics, Ken, it is important that one not favor one reference > frame over another as being "the correct one". Physical laws are the > same in all reference frames, though the quantities in the laws will > vary frame to frame and the description of events will be different in > two different frames. > > > > > > > Ken Seto- Hide quoted text - > > - Show quoted text -- Hide quoted text - > > - Show quoted text - When a twin on the fast moving train passes the station and the stations clock is in view how does he see it going slow? If he does when does he get a chance to age slower than the stations slow clock? I believe there must be only one slow clock and that is for energy that has accelerated. That energy is always weightes when it accelerates and this is when time slows. When the train decelerates to speeds back up and is the same as the station. Mitch Raemsch
From: Sam Wormley on 12 Jun 2010 18:26 On 6/11/10 7:19 PM, Hayek wrote: > With an absolute frame, the travelling twin stays younger. There are no absolute frames with special properties! Physics FAQ: The Twin Paradox http://math.ucr.edu/home/baez/physics/Relativity/SR/TwinParadox/twin_paradox.html
From: Hayek on 12 Jun 2010 20:58 Sam Wormley wrote: > On 6/11/10 7:19 PM, Hayek wrote: >> With an absolute frame, the travelling twin stays >> younger. > > There are no absolute frames with special properties! > How does light now at what speed to travel ? From another post: QUOTE And yet : if a photon is emitted, anywhere in the universe, at a reasonable distance from some concentrated mass, it immediately adjusts to a special frame, the photon's speed is immediately set by the masses of the universe that surround the photon. UNQUOTE Uwe Hayek. > Physics FAQ: The Twin Paradox > > http://math.ucr.edu/home/baez/physics/Relativity/SR/TwinParadox/twin_paradox.html > > -- We are fast approaching the stage of the ultimate inversion : the stage where the government is free to do anything it pleases, while the citizens may act only by permission; which is the stage of the darkest periods of human history. -- Ayn Rand I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them. -- Thomas Jefferson. Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery. -- Winston Churchill.
From: Inertial on 12 Jun 2010 21:14 "Hayek" <hayektt(a)nospam.xs4all.nl> wrote in message news:4c142d47$0$22920$e4fe514c(a)news.xs4all.nl... > Sam Wormley wrote: >> On 6/11/10 7:19 PM, Hayek wrote: >>> With an absolute frame, the travelling twin stays >>> younger. >> >> There are no absolute frames with special properties! >> > How does light now at what speed to travel ? Why does it need to 'know' anything .. it just does what it does. How does a train whistle sound-wave know how to adjust its frequency so that a stationary observer hears a different pitch?
From: Sam Wormley on 12 Jun 2010 21:21
On 6/12/10 7:58 PM, Hayek wrote: > Sam Wormley wrote: >> On 6/11/10 7:19 PM, Hayek wrote: >>> With an absolute frame, the travelling twin stays >>> younger. >> >> There are no absolute frames with special properties! >> > How does light now at what speed to travel ? Light doesn't make a choice--it only exists propagating at the cosmic speed limit. Not an iota more or less. > >> Physics FAQ: The Twin Paradox >> >> http://math.ucr.edu/home/baez/physics/Relativity/SR/TwinParadox/twin_paradox.html >> >> >> > > |