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Please excuse me for answering a humorous post seriously.<br>
<br>
Gilad Ben-Yossef wrote:
<blockquote cite="mid:4A97AEA2.3040009@codefidence.com" type="cite">
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<br>
Despite popular belief, the speed of light is only fixed in vacuum and
scientists long acknowledged the fact that light may travels in
different and lesser speeds when going through different materials,
such as air, or water. <br>
</blockquote>
Again, not precisely accurate.<br>
<br>
While light will, indeed, travel slower through any material denser
than vacuum, this is not what the term "speed of light" refers to. To
the best of my knowledge, "speed of light" refers to a basic property
of the universe (how fast will any change of any field propagate), and
that is the property that goes into the time warping formulas (the
famous "c" in Lorentz transformation). Just because light travels
through glass at 30% less speed does not mean you have to aim 30% lower
if you want to freeze time (unless, and this is something I'm not 100%
clear about, YOU are traveling through glass as well).<br>
<br>
<blockquote type="cite">88 miles per hour, it would seem, is the speed
of light as it travels
through Hollywood movies.<br>
</blockquote>
At least that one seems pretty accurate. This also explains why pretty
much anything looks different when viewed through the filters of a
Holywood movie. The huge refraction coefficient acts like lens, only
much more powerful.<br>
<br>
Shachar<br>
<pre class="moz-signature" cols="72">--
Shachar Shemesh
Lingnu Open Source Consulting Ltd.
<a class="moz-txt-link-freetext" href="http://www.lingnu.com">http://www.lingnu.com</a>
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