Re: OT Speed of light stuff - was Pluto.

Kevin W. Miller wrote:

"Max" <thesameoldme@xxxxxxxxxxxxxxxx> wrote in message
news:OmPBf.14584$H71.5536@xxxxxxxxxxxxxxxxxxxxxxxxxx

"Kevin W. Miller" <i09172strudelyahoo.com> wrote in message
news:r8ednXdieeOOIUrenZ2dnUVZ_smdnZ2d@xxxxxxxxxxxxxxx

In news:43pfarF1othiiU3@xxxxxxxxxxxxxx,
Lon VanOstran <RVnFT@xxxxxxxxxxxxx> typed:

bill horne wrote:


Kevin W. Miller wrote:


BwaaaaaaHaaaaaaaaaaaaaaaa Haaaaaaaaaaaaaaaaaaa!

Oh, GOD! That was the funniest thing I've read in ages! Oh, crap.
Thanks. No wonder you have trouble with Darwin.

To quote Mr. Lampson, "HAW HAW HAW"!

Kevin W. Miller 


A week or so ago I was Cloroxing my roof. At the time of what
promises to become an historical event in the field of
pseudoscience, I was about 12 feet off the ground. I had a minor
stumble, and the recovery maneuvers included an approximately 4"
vertical jump. Using Sill Physics, this was a 12' 4" jump, and
conclusively disproves the theory that white men can't jump.


Maybe I'm as "illogical" as Will. His explanation seemed sensible to
me. Here on earth, we measure speed relative to earth, which is
moving pretty fast as it circles the sun. It would seem that if we
employ the movement of earth as it circles the sun, we could fire
rockets into space, with greater speed and less rocket boost than
if we fired them counter to the movement of the earth around the
sun. Their speed, while not changing, would be different relative
the the speed of various other objects in space, just as you can
pass a vehicle coming toward you much more quickly than you can
pass one going away from you.
In space, when we measure speed, what are we comparing it to, since
everything in space is moving?

Lon

We are, usually, measuring it in miles per hour (could be kilometers,
parsecs, light years etc). That means the number of miles traveled
each hour. It has nothing to do with the motion of the Earth around
the Sun or the motion of the Sun around the Galaxy. It's the number
of miles the object travels each hour. That seems very simple. I
think where poor Will, and apparently some others, gets confused is
with the word "relativity". The way "relativity" is usually explained is by example. If you were
sitting in a stopped train, for example, and looked out the window
and saw another train passing, you would not be able to tell whether
it's the other train moving by you or you moving by the other train
(assuming you could ignore the lack of sound and vibration as clues
to your own movement and all you could see out the window was the
other train). It would look the same whether it was you moving and
the other train stopped or vice versa. There is no experiment you
could perform that would tell you whether it was your train moving
or the other train moving. You could try dropping a ball but it
would appear to you to drop straight down. You could toss the ball
forward but it would appear to follow exactly the arc you would
expect it to follow. You could toss the ball to the rear and it
would again follow exactly the arc you would expect it to follow.
And it would appear to you to do that no matter what your own speed. Now let's pretend that you could see the fellow in the other train
drop the ball and could watch it as it hit. Because of the motion of
the other train (or yours, since you can't tell which one is
moving), it would appear to you that the dropped ball did not drop
straight down but actually dropped at an angle. The same for a ball
tossed by the other fellow toward the front or back of his train. It
would appear to you that the arc of the ball was either stretched or
shortened depending upon the direction of the tossed ball. The other
observer, watching you perform with the ball, would see the same
effects. Neither of you would be able to tell which is moving
"relative" to the other. If both trains were each moving towards the
other near light speed, as the other passed it would appear to you
as though the other were moving at near twice the speed of light (or
that the other was stopped and you were moving at near twice the
speed of light) but it's still only an appearance. Each would still
cover the same amount of distance in the same amount of time. The
effect isn't additive. No matter what the "two bullet" theory says. Kevin W. Miller 

The issue could become more complicated by the fact that the speed of
light is *independent of the source*.  (not related to the emitter)

Max


We use "speed of light" as a constant equal to (about) 186,000 miles per hour. Notice that we don't say "relative to the speed of the Earth around the Sun or the Galaxy around the Universe or the fireants around bill horne's yard".

Kevin W. Miller

The last time I measured it with my light speedometer, it was closer to 186000 miles per second. But maybe I was in a gravity anomaly, and should have used the heavy one.

--
bill
Theory don't mean squat if it don't work.
.

Relevant Pages

  • Re: OT Speed of light stuff - was Pluto.
    ... Here on earth, we measure speed relative to earth, which is moving ... > pretty fast as it circles the sun. ... in a stopped train, for example, and looked out the window and saw another ... You could try dropping a ball but it ...
    (rec.outdoors.rv-travel)
  • Re: OT Speed of light stuff - was Pluto.
    ... Here on earth, we measure speed relative to earth, which is moving ... >> pretty fast as it circles the sun. ... > sitting in a stopped train, for example, and looked out the window and saw ... > dropping a ball but it would appear to you to drop straight down. ...
    (rec.outdoors.rv-travel)
  • Re: The velocity of light going pass a moving train.
    ... Sue... ... why raindrops viewed from a moving car don't take ... Why can't we see light moving from the sun to the ... But in the train example, ...
    (sci.physics.relativity)
  • Re: OT Speed of light stuff - was Pluto.
    ... That means the number of miles traveled ... >> and saw another train passing, you would not be able to tell whether ... >> it's the other train moving by you or you moving by the other train ... You could try dropping a ball but it would ...
    (rec.outdoors.rv-travel)
  • Re: Questions (Space)
    ... sun and the sun moving in the galaxy. ... moving around on the surface of the Earth, ... Reminds me of some funny idea someone had while sitting in a train. ...
    (rec.arts.sf.composition)
Loading