Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics.relativity > #360428

Re: Interferometry Does Not Measure Light Speed.

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity
Subject Re: Interferometry Does Not Measure Light Speed.
Date 2015-08-12 08:01 +0200
Message-ID <d305qmFe90cU1@mid.individual.net> (permalink)
References (12 earlier) <19595336-735e-4946-83a3-b1f5a47c46a3@googlegroups.com> <d2qse9F1ullU1@mid.individual.net> <a6d0efec-a79b-404c-bf4e-a6d445d48196@googlegroups.com> <7eaa8d60-f977-4e18-9703-a657bc95f6e4@googlegroups.com> <d2v5ehF665dU1@mid.individual.net>

Show all headers | View raw

Am 11.08.2015 22:49, schrieb Thomas Heger:

>> Hi rotchm,
>>
>> I think I'm getting the picture. If the disks are 3 meters apart, light
>> would take 10 nanoseconds to traverse that distance. If the disks had
>> small enough apertures and could be spun up to, say, 30000 rpm, the light


I wanted the wheels reflective at the outside surface and a fine grid 
burned/etched into it (not holes).

This grid would be similar to a DVD or Blue-ray disk and had to be made 
with great precision.

The pickup systems is a laser, similar to a DVD reader, hence would 
contain a prism and a few tiny lenses, to project the laser beam to a 
spot small enough.

>> But I don't think you can spin the disks fast enough or make the
>> apertures
>> small enough to get below the microsecond range.
>>
> I have just used this sophisticated math tool ('MS-Excel') and figured
> it out:
>
> if the rotor could be accelerated to -say - 10000 rpm and the disks had
> a radius of 0.5 m and had a grid of 250,000 stripes, than the rotor must
> be 3.6 m long.
>
> Every stripe would be 6.28 micrometers and is followed by same width of
> reflective area. This would generate a frequency of 417Mhz. But we can
> use both flanks and calculate with the double.

this is not true, but 41.7 MHz (was one zero too much)

Since 'pit plus land' causes kind of middle reflection and that is the 
same as land plus pit, we could use both flanks of the pattern.

This would make 83.4 Mhz as frequency and that requires a length of 3.6 m.

>
> So, the machine is within the range of possibilities, but certainly
> difficult to build.
>
> TH

Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-08 06:55 +1000
  Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-07 16:40 -0500
    Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-08 08:27 +1000
      Re: Interferometry Does Not Measure Light Speed. Ignorant Raving Crackpot <ignorantravingcrackpot@gmail.com> - 2015-08-07 16:36 -0700
        Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-09 18:48 +1000
          Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 08:05 -0700
            Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-10 08:13 +1000
              Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-09 17:20 -0700
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-10 12:25 +1000
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 19:58 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-10 20:11 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-10 10:06 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-10 20:08 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-10 15:28 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-11 06:30 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-11 23:43 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-12 08:26 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-12 10:23 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-14 01:51 +1000
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 16:03 +0000
                Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 11:39 -0500
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-14 19:24 +1000
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-14 14:52 +0000
                Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 11:37 -0500
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-13 18:41 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-14 19:28 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-17 17:08 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-18 03:27 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-17 21:42 +0200
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-18 08:23 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-18 21:33 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-19 06:11 +1000
                Re: Interferometry Does Not Measure Light Speed. Ignorant Raving Crackpot <ignorantravingcrackpot@gmail.com> - 2015-08-18 13:20 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-20 05:53 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-19 14:09 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-20 19:14 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-20 03:42 -0700
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-20 12:33 +0000
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-21 09:17 +1000
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-21 09:17 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-20 19:39 -0700
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-19 14:22 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-20 05:55 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-20 09:52 +0200
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-20 19:17 +1000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-20 12:25 +0200
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-17 21:20 +0000
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-18 08:22 +1000
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-18 03:15 +0000
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-18 19:39 +1000
                Re: Interferometry Does Not Measure Light Speed. moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-18 14:22 +0000
                Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-18 21:38 +0200
                Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-10 09:27 -0500
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-11 06:22 +1000
              Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 18:52 -0700
      Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-08 15:34 -0500
  Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-08 03:01 +0200
    Re: Interferometry Does Not Measure Light Speed. Sylvia Else <sylvia@not.at.this.address> - 2015-08-08 19:35 +1000
      Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-08 15:45 +0200
        Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-08 07:46 -0700
        Re: Interferometry Does Not Measure Light Speed. fuller.david@hotmail.com - 2015-08-09 08:57 -0700
    Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-08 07:44 -0700
      Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-08 20:00 +0200
        Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-08 14:00 -0700
          Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-08 23:36 +0200
            Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-08 15:18 -0700
              Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-09 07:09 +0200
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 08:19 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-09 18:31 +0200
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 09:40 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-09 21:30 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-09 13:05 -0700
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 18:16 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-10 07:50 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-10 16:37 -0700
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-10 16:39 -0700
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-10 16:43 -0700
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-11 08:05 -0700
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-11 08:59 -0700
                Re: Interferometry Does Not Measure Light Speed. Felipe Delgado <fd@spreadspectrum.org> - 2015-08-11 16:27 +0000
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-11 22:49 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-11 17:58 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-12 07:49 +0200
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-12 08:01 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-13 19:27 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-14 05:29 +0200
                Re: Interferometry Does Not Measure Light Speed. Ignorant Raving Crackpot <ignorantravingcrackpot@gmail.com> - 2015-08-12 03:32 -0700
                Re: Interferometry Does Not Measure Light Speed. underante <underante@yahoo.com> - 2015-08-12 07:50 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-12 22:53 +0200
                Re: Interferometry Does Not Measure Light Speed. Ignorant Raving Crackpot <ignorantravingcrackpot@gmail.com> - 2015-08-12 15:57 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-13 11:16 +0200
                Re: Interferometry Does Not Measure Light Speed. Ignorant Raving Crackpot <ignorantravingcrackpot@gmail.com> - 2015-08-13 06:05 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-13 21:21 +0200
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-18 06:22 +0200
                Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-18 07:06 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-18 19:55 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-18 16:25 -0700
                Re: Interferometry Does Not Measure Light Speed. Thomas Heger <ttt_heg@web.de> - 2015-08-21 06:09 +0200
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-09 12:18 -0700
                Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-09 12:22 -0700
    Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-09 18:23 +1000
      Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 07:59 -0700
        Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-10 08:15 +1000
          Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 18:55 -0700
        Re: Interferometry Does Not Measure Light Speed. Tom Roberts <tjroberts137@sbcglobal.net> - 2015-08-09 22:10 -0500
          Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 20:27 -0700
            Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-10 20:15 +1000
            Stephane Baune inserts foot in mouth. Deeper "Dono," <sa_ge@comcast.net> - 2015-08-13 12:38 -0700
  Re: Interferometry Does Not Measure Light Speed. John Gogo <jfgogo22@yahoo.com> - 2015-08-07 19:19 -0700
  Re: Interferometry Does Not Measure Light Speed. John Heath <heathjohn2@gmail.com> - 2015-08-07 19:25 -0700
  Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-08 13:02 +0200
    Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-09 18:37 +1000
      Re: Interferometry Does Not Measure Light Speed. "Paul B. Andersen" <relativity@paulba.no> - 2015-08-09 14:32 +0200
  Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-08 07:33 -0700
    Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-09 18:10 +1000
      Re: Interferometry Does Not Measure Light Speed. rotchm <rotchm@gmail.com> - 2015-08-09 07:56 -0700
        Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-10 20:19 +1000
          Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-10 06:39 -0700
            Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-11 06:35 +1000
              Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-10 16:28 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-12 08:30 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-12 08:07 -0700
                Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-13 07:25 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-12 17:14 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-14 02:01 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-13 11:57 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-14 19:36 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-14 06:08 -0700
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-15 06:00 +1000
                Re: Interferometry Does Not Measure Light Speed. Odd Bodkin <bodkinodd@gmail.com> - 2015-08-14 15:04 -0500
                Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-15 06:43 +1000
                Re: Interferometry Does Not Measure Light Speed. Gary Harnagel <hitlong@yahoo.com> - 2015-08-14 15:07 -0700
  Re: Interferometry Does Not Measure Light Speed. alsor@interia.pl - 2015-08-09 11:23 -0700
    Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-10 08:25 +1000
      Re: Interferometry Does Not Measure Light Speed. alsor@interia.pl - 2015-08-10 14:37 -0700
        Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-11 08:24 +1000
          Re: Interferometry Does Not Measure Light Speed. alsor@interia.pl - 2015-08-12 11:14 -0700
            Re: Interferometry Does Not Measure Light Speed. HW@...(HG Wilson) - 2015-08-13 07:29 +1000
              Re: Interferometry Does Not Measure Light Speed. alsor@interia.pl - 2015-08-13 13:07 -0700
  Interferometry Does Not Measure Light Speed. Jon Price <jonelwoodprice@gmail.com> - 2015-08-10 20:02 -0700
    Re: Interferometry Does Not Measure Light Speed. Henry Wilson DSc. <hw@....> - 2015-08-12 08:37 +1000

csiph-web