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

Groups > sci.physics.relativity > #410821

Re: Why should I learn mathematics to understand physics

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics.relativity
Subject Re: Why should I learn mathematics to understand physics
Date 2017-02-26 00:12 +1100
Message-ID <ehde5bFelstU1@mid.individual.net> (permalink)
References <o8nr46$1ls9$1@gioia.aioe.org> <e71a8b9f-6eba-4052-857b-62754ae7d370@googlegroups.com> <ehcvt7Fbq3aU1@mid.individual.net> <88a0b3d5-7345-4df2-a188-1689dc25cc63@googlegroups.com>

Show all headers | View raw

On 25/02/2017 9:47 PM, matt.rush200@outlook.com wrote:
> Sylvia
>>> On 25/02/2017 2:11 AM, matt.r...@outlook.com wrote:
>>> There is no doubt that maths is vital in technology. We can't do without it.
>>> Making sure exact amounts are used etc. And then there is the digital
>>> age. Computers genetics etc. Without maths these would be impossible.
>>> But you ignore where maths is used to falsify theory. The classic
>>> example is fizeau. In this experiment light travels at variable speeds
>>> in the water. This is indisputable. But it is also inconsistent with
>>> SR.
>
>> SR does not require light to travel at c through water. It does require
>> that light travel at some fixed velocity through water (for a given
>> state; temperature, pressure, etc.), relative to the water. Further if
>> the water is moving relative to an observer, then the speed of the light
>> in the water relative to the observer obeys the velocity composition
>> rule identified in SR, rather than being the result of simple addition.
>> So far from falsifying SR, it verifies it.
>
> In other words you have just admitted that light is observed to travel at
> variable speeds in the water frame, contrary to SR, and this needs to
> be "fixed" mathematically by the 'velocity composition rule' to falsely
> make it appear that it has a fixed velocity.
>
What's variable about it? For a given state of the water, the velocity 
relative to the water is fixed. That's all that SR requires, since that 
is consistent with the requirement that the laws of physics be the same 
for all inertial frames.

Sylvia.

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

Thread

Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-23 17:27 -0600
  Re: Why should I learn mathematics to understand physics "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2017-02-23 19:23 -0800
  Re: Why should I learn mathematics to understand physics Serg Io <invliad@invalid.com> - 2017-02-23 21:35 -0600
    Re: Why should I learn mathematics to understand physics benj <nobody@yahoo.com> - 2017-02-24 06:20 -0500
      Re: Why should I learn mathematics to understand physics Serg Io <invliad@invalid.com> - 2017-02-24 06:22 -0600
  Re: Why should I learn mathematics to understand physics mlwozniak@wp.pl - 2017-02-23 23:02 -0800
  Re: Why should I learn mathematics to understand physics benj <nobody@yahoo.com> - 2017-02-24 05:28 -0500
    Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-24 20:00 +0000
      Re: Why should I learn mathematics to understand physics benj <nobody@gmail.com> - 2017-02-25 03:19 -0500
        Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-25 17:48 +0000
          Re: Why should I learn mathematics to understand physics Bret Noss <osotr@rwtropsws.org> - 2017-02-25 18:41 +0000
            Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-25 19:07 +0000
              Re: Why should I learn mathematics to understand physics Bret Noss <osotr@rwtropsws.org> - 2017-02-25 19:35 +0000
      Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-25 13:34 -0600
        Re: Why should I learn mathematics to understand physics benj <benj@nobody.net> - 2017-02-25 17:01 -0500
          Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-25 22:21 +0000
            Re: Why should I learn mathematics to understand physics benj <benj@nobody.net> - 2017-02-25 17:56 -0500
              Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-26 01:22 +0000
                Re: Why should I learn mathematics to understand physics benj <benj@nobody.net> - 2017-02-25 21:18 -0500
                Re: Why should I learn mathematics to understand physics jimp@specsol.spam.sux.com - 2017-02-26 02:58 +0000
          Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-26 15:44 -0600
            Re: Why should I learn mathematics to understand physics benj <nobody@gmail.com> - 2017-02-26 22:45 -0500
              Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-27 07:22 -0600
                Re: Why should I learn mathematics to understand physics benj <benj@nobody.net> - 2017-02-27 16:53 -0500
    Re: Why should I learn mathematics to understand physics JanPB <filmart@gmail.com> - 2017-02-24 14:41 -0800
  Re: Why should I learn mathematics to understand physics Robert Winn <rbwinn3@gmail.com> - 2017-02-24 03:45 -0800
  Re: Why should I learn mathematics to understand physics Robert Winn <rbwinn3@gmail.com> - 2017-02-24 03:48 -0800
    Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-24 07:33 -0600
      Re: Why should I learn mathematics to understand physics Robert Winn <rbwinn3@gmail.com> - 2017-02-24 06:50 -0800
        Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-24 10:09 -0600
  Re: Why should I learn mathematics to understand physics kenseto <setoken@att.net> - 2017-02-24 06:27 -0800
    Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-24 09:14 -0600
      Re: Why should I learn mathematics to understand physics mlwozniak@wp.pl - 2017-02-24 07:42 -0800
      Re: Why should I learn mathematics to understand physics kenseto <setoken@att.net> - 2017-02-24 12:44 -0800
        Re: Why should I learn mathematics to understand physics Odd Bodkin <bodkinodd@gmail.com> - 2017-02-25 13:34 -0600
        Re: Why should I learn mathematics to understand physics moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-02-27 16:35 +0000
    Re: Why should I learn mathematics to understand physics moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-02-24 17:40 +0000
      Re: Why should I learn mathematics to understand physics kenseto <setoken@att.net> - 2017-02-24 12:45 -0800
        Re: Why should I learn mathematics to understand physics moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-02-27 07:10 +0000
  Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-24 07:11 -0800
    Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-25 20:08 +1100
      Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-25 02:47 -0800
        Re: Why should I learn mathematics to understand physics Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2017-02-25 12:55 +0100
          Re: Why should I learn mathematics to understand physics John Heath <heathjohn2@gmail.com> - 2017-02-25 11:36 -0800
          Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-26 15:01 +1100
        Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-26 00:12 +1100
          Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-26 15:06 +1100
            Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-26 07:13 -0800
              Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 12:59 +1100
            Re: Why should I learn mathematics to understand physics Ned Latham <nedlatham@woden.valhalla.oz> - 2017-02-27 01:08 +0000
              Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 13:00 +1100
                Re: Why should I learn mathematics to understand physics Ned Latham <nedlatham@woden.valhalla.oz> - 2017-02-27 07:15 +0000
                Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 19:58 +1100
          Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-26 01:08 -0800
            Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-26 20:43 +1100
              Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-26 06:26 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 08:57 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 09:15 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 09:37 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 09:49 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 10:00 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 10:12 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 10:18 -0800
                Re: Why should I learn mathematics to understand physics "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-26 10:59 -0800
                Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 09:57 +1100
                Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-27 00:42 -0800
                Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 20:10 +1100
                Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-27 12:05 -0800
                Re: Why should I learn mathematics to understand physics Sylvia Else <sylvia@not.at.this.address> - 2017-02-28 12:24 +1100
                Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-27 18:11 -0800
                Re: Why should I learn mathematics to understand physics matt.rush200@outlook.com - 2017-02-27 18:00 -0800

csiph-web