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

Groups > sci.physics > #644567

Re: Waves need a medium

From Odd Bodkin <bodkinodd@gmail.com>
Newsgroups sci.physics
Subject Re: Waves need a medium
Date 2017-08-05 11:41 -0500
Organization Aioe.org NNTP Server
Message-ID <om4sfv$1tsg$5@gioia.aioe.org> (permalink)
References <af70e8ac-f3a4-44b1-9618-37ae3961e1dd@googlegroups.com> <om0qjr$jv$2@pcls7.std.com> <om237e$1uq0$1@gioia.aioe.org>

Show all headers | View raw

On 8/4/17 10:17 AM, Serg Io wrote:
> On 8/3/2017 10:44 PM, Michael Moroney wrote:
>> On Thursday, August 3, 2017 at 2:00:44 AM UTC+3, Arindam Banerjee wrote:
>>>  From water waves requiring water
>>>  From sound waves requiring air/solid
>>>  From Mexican waves requiring humans
>>>  From vibration waves requiring a string
>>>
>>> Since these waves require a medium, electromagnetic waves need a medium.
>>
>>  From cats giving live birth to kittens
>>  From cows giving live birth to calves
>>  From Mexicans giving live birth to babies
>>  From dogs giving live birth to puppies
>>
>> Since these mammals give live birth to offspring, platypuses need to
>> give live birth to their offspring.
>>
> 
> 
> 
> 
> same kind of logic;
> 
> a man has two legs
> a monkey has two legs
> therefore all men are monkeys

What you see exhibited here is a shallowness of thinking. Sure, there is 
a correlation between the presence of a water wave and of the water. 
Sure there is a correlation between sound and the presence of air. 
However, the correlation does not provide the explanation.

It helps to ask questions like:
- What is it about the medium that a disturbance propagates instead of 
just sit there and oscillate?
- Why is it that the initial displacement in the original location is 
followed by a displacement in the other direction?
- Why do the waves tend to follow a sinusoidal shape in the simplest cases?

When you actually try to answer these with some depth, you find that the 
behavior of a wave in a medium is determined by using Newton's laws of 
motion in that medium, and there is a common trait that the acceleration 
of a bit of the medium is proportional to the displacement, and 
furthermore, the time derivative of the displacement is proportional to 
the spatial derivative of the displacement. The latter is what couples 
the spatial and time derivatives that are so critical to wave behavior. 
In other words, it isn't JUST the presence of the medium that is 
critical, it is the relationship between the time and spatial 
derivatives of the displacement that is critical. Without that 
mathematical relationship, the presence of the medium would mean nothing.

What's even more astounding is that once you know that the wave behavior 
comes from Newton's law and the relationship between the derivatives, 
then this behavior will emerge EVEN WITHOUT a medium to support it. It's 
not hard to find cases where the relationship between the derivatives is 
present with no medium to point to.

-- 
Odd Bodkin -- maker of fine toys, tools, tables

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

Thread

Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-02 16:00 -0700
  Waves need a medium john <johnsefton288@gmail.com> - 2017-08-02 18:27 -0700
  Re: Waves need a medium Mushnik <invalid@invalid.com> - 2017-08-02 20:46 -0500
  Re: Waves need a medium poraty350@gmail.com - 2017-08-03 00:14 -0700
    Re: Waves need a medium poraty350@gmail.com - 2017-08-03 00:20 -0700
      Re: Waves need a medium Double-A <double-a3@hush.com> - 2017-08-03 12:55 -0700
    Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-03 15:18 -0700
    Re: Waves need a medium poraty350@gmail.com - 2017-08-03 23:08 -0700
      Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 02:38 -0700
        Re: Waves need a medium poraty350@gmail.com - 2017-08-04 07:55 -0700
          Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 19:58 -0700
  Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-03 13:26 -0700
    Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-03 13:37 -0700
    Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 04:44 -0700
      Re: Waves need a medium benj <benj@nobody.net> - 2017-08-04 18:08 -0400
        Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-04 21:14 -0500
          Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:02 -0400
      Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 19:46 -0700
        Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:08 -0400
          Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-06 05:50 -0700
            Re: Waves need a medium benj <benj@nobody.net> - 2017-08-07 17:39 -0400
  Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-04 03:44 +0000
    Re: Waves need a medium Serg Io <invalid@invalid.com> - 2017-08-04 10:17 -0500
      Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 19:34 -0700
        Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-04 21:44 -0500
          Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-04 20:00 -0700
            Re: Waves need a medium poraty350@gmail.com - 2017-08-04 22:24 -0700
              Re: Waves need a medium poraty350@gmail.com - 2017-08-04 23:08 -0700
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 00:53 -0700
                Re: Waves need a medium poraty350@gmail.com - 2017-08-05 01:13 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 04:24 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 04:26 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 11:58 -0500
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:17 -0400
              Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 04:53 -0700
                Re: Waves need a medium poraty350@gmail.com - 2017-08-05 05:17 -0700
            Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 11:57 -0500
              Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 22:55 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 08:57 -0500
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 19:23 +0000
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 08:24 -0500
                Re: Waves need a medium Double-A <double-a3@hush.com> - 2017-08-07 14:14 -0700
                Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-08 11:25 -0700
                Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-08 22:26 -0700
          Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:07 -0400
        Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 11:56 -0500
          Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 22:46 -0700
            Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 15:57 -0500
              Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-06 20:17 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-07 08:40 -0500
            Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 08:25 -0500
              Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-07 16:51 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-08 02:13 +0000
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-07 19:25 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-08 11:20 +0000
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-08 04:32 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-08 07:47 -0500
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-08 19:34 -0400
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-08 17:12 -0700
                Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-08 13:15 +0000
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-08 06:39 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-09 09:20 -0500
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-09 08:03 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-09 12:03 -0500
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-09 10:39 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-09 14:43 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-08 16:24 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-09 03:17 +0000
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 16:27 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-09 23:52 +0000
                Re: Waves need a medium poraty350@gmail.com - 2017-08-09 17:44 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 17:47 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-10 01:34 +0000
                Re: Waves need a medium poraty350@gmail.com - 2017-08-09 22:22 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 22:34 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-09 20:52 -0400
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-09 20:49 -0400
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-10 01:34 +0000
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-09 23:27 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 22:01 -0700
                Re: Waves need a medium poraty350@gmail.com - 2017-08-09 11:55 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 16:31 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-08 19:14 -0400
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-08 19:11 -0400
        Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-05 23:37 +0000
          Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 16:46 -0700
          Re: Waves need a medium Mahipal <mahipal7638@gmail.com> - 2017-08-05 17:01 -0700
            Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 17:36 -0700
              Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 03:03 +0000
          Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 23:12 -0700
            Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 13:19 +0000
              Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-06 17:03 -0700
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-06 17:09 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 02:36 +0000
      Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 11:41 -0500
        Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 10:35 -0700
          Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 18:13 +0000
            Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 11:40 -0700
              Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 18:45 +0000
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 11:57 -0700
                Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-05 23:16 +0000
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 16:32 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 03:03 +0000
                Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-06 04:18 +0000
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 02:49 +0000
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 08:28 -0500
              Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-05 23:04 +0000
                Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-05 19:59 -0500
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-05 18:12 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 22:13 -0400
                Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-05 21:39 -0500
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-07 17:23 -0400
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-08 12:19 -0500
                Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-06 04:32 +0000
        Re: Waves need a medium poraty350@gmail.com - 2017-08-05 21:09 -0700
          Re: Waves need a medium "Eduardo Fahqtardo" <Dave3@gmail.com> - 2017-08-06 18:46 -0700
  Re: Waves need a medium Sylvia Else <sylvia@not.at.this.address> - 2017-08-04 21:57 +1000
    Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-04 06:21 -0700
      Re: Waves need a medium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-04 23:03 +0000
        Re: Waves need a medium benj <benj@nobody.net> - 2017-08-04 19:15 -0400
      Re: Waves need a medium Sylvia Else <sylvia@not.at.this.address> - 2017-08-05 14:35 +1000
        Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 04:28 -0700
          Re: Waves need a medium Sylvia Else <sylvia@not.at.this.address> - 2017-08-05 22:13 +1000
            Re: Waves need a medium poraty350@gmail.com - 2017-08-05 06:01 -0700
              Re: Waves need a medium Sylvia Else <sylvia@not.at.this.address> - 2017-08-05 23:22 +1000
                Re: Waves need a medium poraty350@gmail.com - 2017-08-05 21:00 -0700
            Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 06:26 -0700
              Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-05 09:02 -0500
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:25 -0400
              Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-05 12:02 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 23:03 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-06 13:19 +0000
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 08:29 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-07 17:06 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-08 07:51 -0500
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 16:49 -0500
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-06 15:52 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 00:00 +0000
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-06 17:08 -0700
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 02:36 +0000
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 20:21 -0500
                Re: Waves need a medium James McGinn <jimmcginn9@gmail.com> - 2017-08-06 19:47 -0700
            Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:21 -0400
          Re: Waves need a medium MaryK <nobody@invalid.com> - 2017-08-05 08:54 -0500
            Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-05 22:38 -0700
              Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 08:13 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-06 17:00 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-06 20:55 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-06 23:37 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-07 08:30 -0500
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-07 17:44 -0400
              Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 08:31 -0500
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-07 07:29 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-07 10:59 -0500
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 13:22 -0500
                Re: Waves need a medium Odd Bodkin <bodkinodd@gmail.com> - 2017-08-07 13:23 -0500
              Re: Waves need a medium benj <benj@nobody.net> - 2017-08-07 17:27 -0400
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-08 12:39 -0500
        Re: Waves need a medium benj <benj@nobody.net> - 2017-08-05 21:12 -0400
    Re: Waves need a medium benj <benj@nobody.net> - 2017-08-04 18:10 -0400
  Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-04 10:06 -0700
    Re: Waves need a medium Double-A <double-a3@hush.com> - 2017-08-04 13:44 -0700
      Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-05 10:21 -0700
        Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-05 15:44 -0700
    Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-04 14:31 -0700
    Re: Waves need a medium benj <benj@nobody.net> - 2017-08-04 18:16 -0400
      Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-05 10:24 -0700
        Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-05 16:19 -0700
    Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-05 10:20 -0700
      Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-05 15:43 -0700
  Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-05 10:14 -0700
    Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-05 15:57 -0700
  Re: Waves need a medium James McGinn <jimmcginn9@gmail.com> - 2017-08-06 19:51 -0700
  Re: Waves need a medium zubeneschgenubi@gmail.com - 2017-08-09 17:16 -0700
    Re: Waves need a medium benj <benj@nobody.net> - 2017-08-09 21:05 -0400
      Re: Waves need a medium zubeneschgenubi@gmail.com - 2017-08-09 20:01 -0700
        Re: Waves need a medium benj <benj@nobody.net> - 2017-08-09 23:38 -0400
          Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-09 21:52 -0700
            Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-09 22:15 -0700
              Re: Waves need a medium poraty350@gmail.com - 2017-08-10 02:12 -0700
                Re: Waves need a medium poraty350@gmail.com - 2017-08-10 02:29 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-10 17:29 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 15:45 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-10 19:13 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 16:55 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-10 20:09 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 18:57 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-11 18:04 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-11 21:26 -0700
                Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-16 13:54 -0700
                Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-16 16:39 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-16 21:25 -0400
              Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-10 02:27 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 02:49 -0700
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-10 06:20 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 06:58 -0700
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-10 07:19 -0700
                Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-10 07:27 -0700
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 16:12 -0700
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-10 22:39 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 20:51 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-11 18:15 -0400
                Re: Waves need a medium Serg io <invalid@invalid.com> - 2017-08-16 17:56 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-16 16:50 -0700
                Re: Waves need a medium benj <benj@nobody.net> - 2017-08-16 21:41 -0400
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-16 19:05 -0700
                Re: Waves need a medium Lofty Goat <rlwatkins@gmail.com> - 2017-08-16 19:34 -0500
                Re: Waves need a medium Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-10 15:59 -0700
                Re: Waves need a medium poraty350@gmail.com - 2017-08-10 09:43 -0700
    Re: Waves need a medium zubeneschgenubi@gmail.com - 2017-08-09 18:45 -0700
      Re: Waves need a medium john <johnsefton288@gmail.com> - 2017-08-09 19:08 -0700
  Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-17 11:27 -0700
    Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-17 12:40 -0700
    Re: Waves need a medium benj <benj@nobody.net> - 2017-08-17 17:57 -0400
  Re: Waves need a medium raymond.yohros@gmail.com - 2017-08-17 13:51 -0700
    Re: Waves need a medium poraty350@gmail.com - 2017-08-17 20:57 -0700
  Re: Waves need a medium "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-18 12:08 -0700
    Re: Waves need a medium "hanson" <hanson@quick.net> - 2017-08-18 14:12 -0700
    Re: Waves need a medium benj <benj@nobody.net> - 2017-08-19 21:51 -0400

csiph-web