Cecil Moore wrote:

When traveling at the speed of light, it exhibits particle
properties.

When does light travel at a speed other than the speed of light?

It has been about half a century since experiments
proved that light waves are bent by gravity thus proving that
electromagnetic radiation has mass. That idea was postulated
in 1915.

And later it was postulated that space is curved by massive objects and
that light simply follows the curves.

The idea of epicycles was first postulated in the 6th century BC.
Therefore, what?

73 ac6xg

Jim Kelley wrote:
Cecil Moore wrote:
Rectifier wrote:
When travelling at the speed of light, it exhibits wave properties.

When traveling at the speed of light, it exhibits particle
properties.

When does light travel at a speed other than the speed of light?

From another of my postings: "If I remember correctly,
a photon cannot travel slower than the speed of light."

The first nine words in my first statement above are
not mine but were copied verbatim from Rectifier's posting
(except for the misspelled word). If there was an implication
that light can travel at less than the speed of light, it
didn't come from me.
--
73, Cecil http://www.w5dxp.com

"Cecil Moore" wrote in message
...
Jim Kelley wrote:
Cecil Moore wrote:
Rectifier wrote:
When travelling at the speed of light, it exhibits wave properties.

When traveling at the speed of light, it exhibits particle
properties.

When does light travel at a speed other than the speed of light?

From another of my postings: "If I remember correctly,
a photon cannot travel slower than the speed of light."

The first nine words in my first statement above are
not mine but were copied verbatim from Rectifier's posting
(except for the misspelled word). If there was an implication
that light can travel at less than the speed of light, it
didn't come from me.
--
73, Cecil http://www.w5dxp.com

Light travels at different speeds in different media, such as water, glass,
etc.

Rectifier wrote:
Light travels at different speeds in different media, such as water,
glass, etc.

It is still traveling at the speed of light in that medium.
--
73, Cecil http://www.w5dxp.com

Rectifier wrote:

The first nine words in my first statement above are
not mine but were copied verbatim from Rectifier's posting
(except for the misspelled word). If there was an implication
that light can travel at less than the speed of light, it
didn't come from me.
--
73, Cecil http://www.w5dxp.com

Light travels at different speeds in different media, such as water,
glass, etc.

And yet all are the speed of light. In that media. What's your issue
with that?

tom
K0TAR

"Cecil Moore" wrote in message
...
Jim Kelley wrote:
Cecil Moore wrote:
Rectifier wrote:
When travelling at the speed of light, it exhibits wave properties.

When traveling at the speed of light, it exhibits particle
properties.

When does light travel at a speed other than the speed of light?

From another of my postings: "If I remember correctly,
a photon cannot travel slower than the speed of light."

The first nine words in my first statement above are
not mine but were copied verbatim from Rectifier's posting
(except for the misspelled word). If there was an implication
that light can travel at less than the speed of light, it
didn't come from me.
--
73, Cecil http://www.w5dxp.com

The word was not misspelled. According to dictionary.com, which quotes the
American Heritage Dictionary, "traveling" and "travelling" are both accepted
ways of spelling the word.

Also, I never meant to assert that light can travel at less than the speed
of light. I took modern physics in college and understand the concepts of
relativity, although it's been 20 years; so I may get some terminology wrong
or not be able to explain it as well as I could before. However,
discussions like these are interesting and stimulate thought and a desire to
go back and review the subject.

Rectifier wrote:
The word was not misspelled. According to dictionary.com, which quotes
the American Heritage Dictionary, "traveling" and "travelling" are both
accepted ways of spelling the word.

Sorry, Thunderbird said it was misspelled. Guess I
should add "travelling" to Thunderbird's dictionary.
--
73, Cecil http://www.w5dxp.com

Rectifier wrote:
... so I may get some
terminology wrong or not be able to explain it as well as I could
before. However, discussions like these are interesting and stimulate
thought and a desire to go back and review the subject.

Yes, that is the important thing. I don't mind my spelling corrected,
and I may mention the misspelling of another ... however, you have it right.

To error is human ...

Regards,
JS