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Re: What is the speed of light????

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On 2/1/2023 10:39 PM, The Starmaker wrote:
> whodat wrote:
>>
>> On 1/31/2023 11:56 AM, The Starmaker wrote:
>>> The Starmaker wrote:
>>>>
>>>> I know you're not suppose to ask this question...
>>>> worse yet, you're not even suppose to answer it..
>>>>
>>>> But since I question the unquestionable, and ask the unaskable,...
>>>>
>>>> What is the speed of light, since I don't live in a vacuum..and the universe
>>>> is not in a vacuum...so What is the speed of light?
>>>>
>>>> That number doesn't appear to be anywhere. Are you not suppose to know, ...or even ask?
>>>>
>>>> Or even test it to find the answer because it is forbidden to test it and publish it for others to see????
>>>>
>>>> What is the speed of light, since I don't 'live in' a vacuum?
>>>>
>>>> Oh, I forgot..most of yous don't know what the definition of a "vacuum" is...
>>>> so for your convenience I'll post it here...(maybes yous forgots)
>>>>
>>>>    vac·u·um
>>>> /'vak?yo?om/
>>>> noun
>>>>
>>>>       a space entirely devoid of matter.
>>>>       synonyms: empty space, emptiness, void, nothingness, vacuity, vacancy, voidness, nihility
>>>> https://www.google.com/search?hl=en&source=hp&biw=&bih=&q=define+vacuum
>>>>
>>>> What is the speed of light, anyway?
>>>>
>>>
>>> I mean, I don't live in "a space entirely devoid of matter", nobody
>>> does.
>>>
>>> And I understand yous have been 'conditioned'/indoctrinated/mandated
>>> to only think in terms of..."in a vacuum" whenever refering to the speed
>>> of light.
>>>
>>> Maybe because this hangup yous people have to always desire to know what
>>> is constant.
>>>
>>> Yous don't like uncertaintly. So you want a same number ALL the time.
>>> Yous sleep better.
>>
>>> And Einstein sleeps better if he conditions yous to only think in his
>>> box.
>>>
0>>
>>> But, I don't live in "a space entirely devoid of matter", so what is the
>>> speed of light?
>>
>> Asked and answered, but apparently you are too stupid to read what has
>> been provided. There is no answer to "what is the speed of light" since
>> it varies with conditions.
> 
> 
> What do you mean exactly by "varies with conditions"? What conditions
> does it vary with?? Can you give an example???


It is clear you are way out of your depth, but here goes:

All light moves through a medium. In a vacuum that medium is space,
defined by Einstein in 1920 to be the ether.[1] Not a point to be argued
here either way, but the speed at that point is generally agreed to be
"c." Anyone can look up the detail. Only cranks argue about this and
theyshould get no attention.

When traveling in "not space" light is traveling through something else.
For example, when traveling through a glass or plastic lens, the
speed is slower than it is in atmospheric air. If that glass or
plastic has a shape that is not parallel surfaces, then that
is considered a lens. See examples at 
<https://ohioenergy.org/wp-content/uploads/2019/08/5L13-Light-What-Are-Lenses-Teacher-Handout.pdf> 


Ordinary glasses people wear depend on those principles.

Every different "not in space" medium yields different speed for
light.

If you look into a pond or stream and see a fish, that fish is not
where it seems to be. The speed of light is different in water than
it is in air so "refraction" happens.

"Spearfishing with a hand-held spear from land, shallow water or boat 
has been practised for thousands of years. The fisher must account for 
optical refraction at the water's surface, which makes fish appear 
higher in their line of sight than they are. By experience, the fisher 
learns to aim lower. Calm and shallow waters are favored for spearing 
fish from above the surface, as water clarity is of utmost importance. 
Many people who grew up on farms in the midwest U.S. in the 1940s-'60s 
recall going spearing for carp with pitchforks when their fields flooded 
in the spring. Spearfishing in this manner has some similarities to 
bowfishing."

https://en.wikipedia.org/wiki/Spearfishing

All of this, and especially the deal with how and where we see fish in
the water, was taught no later than high school general science when I
was going to school. Indeed I took that course in 1954. Apparently you
have been short changed possibly your own fault where it comes to such
elementary science knowledge. You appear to me to have been one of those
boys who sat in the back of the classroom cutting up all the time
instead of paying attention. In that way you missed out acquiring
general knowledge your peers got and you've been left behind.

Clearly you should do a lot of reading on these topics in order to
become qualified to make comments on the state of science. I found
"physics for dummies" on eBay for as little as $3.98 or thriftbooks for
$5.89. That would be a really good starting point for you, no insult
intended by the title you insult your own intelligence plenty enough
here.

[1] As I have posted several times before, this is Einstein's speech
in 1920. Pay particular attention to the final paragraph:

<https://mathshistory.st-andrews.ac.uk/Extras/Einstein_ether/>

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What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-29 11:57 -0800
  Re: What is the speed of light???? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-01-29 12:29 -0800
  Re: What is the speed of light???? Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 13:08 -0800
    Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-29 14:22 -0800
      Re: What is the speed of light???? Paul Alsing <pnalsing@gmail.com> - 2023-01-29 14:58 -0800
        Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-29 16:20 -0800
          Re: What is the speed of light???? Volney <volney@invalid.invalid> - 2023-01-30 01:18 -0500
      Re: What is the speed of light???? Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 15:05 -0800
        Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-29 16:23 -0800
          Re: What is the speed of light???? Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 20:30 -0800
        Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-01-29 18:42 -0600
          Re: What is the speed of light???? Richard Hertz <hertz778@gmail.com> - 2023-01-29 17:20 -0800
            Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-01-29 20:10 -0600
  Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-31 09:56 -0800
    Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-01-31 12:53 -0600
      Re: What is the speed of light???? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-01-31 12:16 -0800
      Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-01-31 16:58 -0800
        Re: What is the speed of light???? Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-31 18:00 -0800
          Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-01-31 20:21 -0600
        Pathetic Starmaker *was Re: What is the speed of light????) whodat <whodaat@void.nowgre.com> - 2023-01-31 20:20 -0600
      Re: What is the speed of light???? The Starmaker <starmaker@ix.netcom.com> - 2023-02-01 20:39 -0800
        Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-02-02 00:16 -0600
          Re: What is the speed of light???? "gehan.am...@gmail.com" <gehan.ameresekere@gmail.com> - 2023-04-04 18:48 -0700
            Re: What is the speed of light???? Tom Roberts <tjoberts137@sbcglobal.net> - 2023-04-04 23:43 -0500
  Re: What is the speed of light???? Sylvia Else <sylvia@email.invalid> - 2023-04-05 15:02 +1000
    Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-04-05 15:30 -0500
      Re: What is the speed of light???? "gehan.am...@gmail.com" <gehan.ameresekere@gmail.com> - 2023-04-05 18:32 -0700
        Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-04-05 22:52 -0500
          Re: What is the speed of light???? "gehan.am...@gmail.com" <gehan.ameresekere@gmail.com> - 2023-04-05 22:05 -0700
            Re: What is the speed of light???? whodat <whodaat@void.nowgre.com> - 2023-04-06 10:20 -0500
              Re: What is the speed of light???? Maciej Wozniak <maluwozniak@gmail.com> - 2023-04-06 08:27 -0700

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