During the middle of the Eocene, about 40 million years ago...

"Peter Webb" wrote in message
...
|
| "Androcles" wrote in message
| ...
|
| "Peter Webb" wrote in message
| u...
| | | | |
| | | | | See Hafele-Keating, they flew clocks around the world
and
| it
| | is
| | | | shorter
| | | | | from
| | | | | London to Sydney than Sydney to London. Distance is a
| vector,
| | time
| | | is
| | | | not.
| | | | | So you don't believe in the experimental predictions of
| | | relativity?
| | | | |
| | | | |
| | | | | Distance is no more a vector than time is.
| | | |
| | | | Is velocity a vector, ****head?
| | | |
| | | |
| | | | Yes, velocity is a vector.
| | |
| | | Is speed a vector, ****head?
| | |
| | |
| | | No.
| |
| | What's the difference between "Geschwindigkeit" (German for speed)
| | and "Geschwindigkeit" (German for velocity)?
| |
| |
| | Dunno exactly.
|
| The difference is direction.
|
| And if you don't know enough English to understand the English words for
| magnitude and direction,
|
| I do. The words you asked about were in German.

No you don't, you hallucinate distance is a scalar.


| you shouldn't try and learn basic vector algebra
| from books written in English. I would have thought this to be obvious.
| There are lots of books in English on the subject.
|
|
| I first studied Vector algebra and vector calculus over 30 years ago, and
| feel I have a pretty good understanding of the subject.

No you don't. You hallucinate distance is a scalar.

| That is why I was happy to answer your questions.

What's the difference between "Geschwindigkeit" (German for distance/time),
a magnitude, and "Geschwindigkeit" (German for (directional
displacement)/time)
a vector?

You dunno.

Not my fault if German has the same word for both and English "distance"
means a vector and a magnitude. That's why we use a minus sign in
mathematics. Distance is a vector. You only need to flip a ruler to
understand it,
the 12 appears on the left instead of the right. Minus is a "rotate 180
degrees"
unary operator. i = sqrt(-1) is a rotate 90 degrees operator. (-1 + i) is a
vector.

Not my fault you've never understood vector algebra.


| |
| |
| | What's the difference between velocity from A to B and velocity from
B
| to
| | A?
| |
| | Hint: a minus sign.
| |
| |
| | If you say so. I can't see any reason why a particle couldn't travel
| from
| A
| | to B at a completely different speed to that which it moves from B to
A.
|
| I do say so. Velocity is a vector and so is distance, it has direction
| too.
|
|
| Just because two things are both vectors doesn't mean that one of them is
| neccesarily minus one times the other one.

Learn to spell, low life.
Speed is a magnitude, velocity is a vector. Distance is NECESSARILY a
vector.
So you don't believe the experimental predictions of relativity because
you necessarily don't understand what distance/time is and have a low IQ,
obviously, since you can't spell.

| | What's the difference between "Geschwindigkeit" (German for speed)
| | and "Geschwindigkeit" (German for velocity)?
| |
| |
| | Dunno exactly.
|
| The difference is direction.
|
| And if you don't know enough English to understand the English words
for
| magnitude and direction,
|
| I do. The words you asked about were in German.

No you don't, you hallucinate distance is a scalar.

No, distance does not have a direction.

If you Google "is distance a scalar or a vector", then the first hit is

http://wiki.answers.com/Q/Is_distanc...or_or_a_scalar

Which has five answers, all of which say distance is a scalar.

The second hit is

http://www.physicsclassroom.com/class/1dkin/u1l1c.cfm

Which says "Distance is a scalar quantity".

The third hit is:

http://en.wikipedia.org/wiki/Scalar_(physics)

Which says: "The distance between two points in three-dimensional space is a
scalar".

So you are obviously wrong.

Not that you need to know much about vectors to learn SR. There are lots of
derivations of SR which don't explicitly use vectors at all; you would be
better off trying to learn SR through an approach which avoids vectors
entirely, you don't really need to know this stuff.





| you shouldn't try and learn basic vector algebra
| from books written in English. I would have thought this to be
obvious.
| There are lots of books in English on the subject.
|
|
| I first studied Vector algebra and vector calculus over 30 years ago,
and
| feel I have a pretty good understanding of the subject.

No you don't. You hallucinate distance is a scalar.


No, distance does not have a direction.

If you Google "is distance a scalar or a vector", then the first hit is

http://wiki.answers.com/Q/Is_distanc...or_or_a_scalar

Which has five answers, all of which say distance is a scalar.

The second hit is

http://www.physicsclassroom.com/class/1dkin/u1l1c.cfm

Which says "Distance is a scalar quantity".

The third hit is:

http://en.wikipedia.org/wiki/Scalar_(physics)

Which says: "The distance between two points in three-dimensional space is a
scalar".

So you are obviously wrong.


| That is why I was happy to answer your questions.

What's the difference between "Geschwindigkeit" (German for
distance/time),
a magnitude, and "Geschwindigkeit" (German for (directional
displacement)/time)
a vector?

You dunno.


No. My German isn't very good.


Not my fault if German has the same word for both and English "distance"
means a vector and a magnitude. That's why we use a minus sign in
mathematics. Distance is a vector. You only need to flip a ruler to
understand it,
the 12 appears on the left instead of the right. Minus is a "rotate 180
degrees"
unary operator. i = sqrt(-1) is a rotate 90 degrees operator. (-1 + i) is
a
vector.

Not my fault you've never understood vector algebra.


You are conflating a couple of different concepts here.

Not that it matters; I can't actually see the point or relevance of
discussing the meaning of German words in a conversation on Relativity.




| |
| |
| | What's the difference between velocity from A to B and velocity
from
B
| to
| | A?
| |
| | Hint: a minus sign.
| |
| |
| | If you say so. I can't see any reason why a particle couldn't travel
| from
| A
| | to B at a completely different speed to that which it moves from B
to
A.
|
| I do say so. Velocity is a vector and so is distance, it has direction
| too.
|
|
| Just because two things are both vectors doesn't mean that one of them
is
| neccesarily minus one times the other one.

Learn to spell, low life.
Speed is a magnitude, velocity is a vector. Distance is NECESSARILY a
vector.


No, distance does not have a direction.

If you Google "is distance a scalar or a vector", then the first hit is

http://wiki.answers.com/Q/Is_distanc...or_or_a_scalar

Which has five answers, all of which say distance is a scalar.

The second hit is

http://www.physicsclassroom.com/class/1dkin/u1l1c.cfm

Which says "Distance is a scalar quantity".

The third hit is:

http://en.wikipedia.org/wiki/Scalar_(physics)

Which says: "The distance between two points in three-dimensional space is a
scalar".

So you are obviously wrong.



So you don't believe the experimental predictions of relativity because
you necessarily don't understand what distance/time is and have a low IQ,
obviously, since you can't spell.



You *don't* need to understand German to learn SR.

You *don't* need any sophisticated mathematics, and you *don't* need to be
conversant with vector algebra.

Why don't you do as I suggest, and try learning it from a book *written in
English* that doesn't explicitly use vector algebra?

"Peter Webb" wrote in message
...
| | | What's the difference between "Geschwindigkeit" (German for
speed)
| | | and "Geschwindigkeit" (German for velocity)?
| | |
| | |
| | | Dunno exactly.
| |
| | The difference is direction.
| |
| | And if you don't know enough English to understand the English words
| for
| | magnitude and direction,
| |
| | I do. The words you asked about were in German.
|
| No you don't, you hallucinate distance is a scalar.
|
| No, distance does not have a direction.

Geschwindigkeit doesn't have direction.
Ergo Geschwindigkeit isn't a vector. You said velocity was a vector and
speed wasn't.
****in' stupid, aren't you?

| If you Google
If I don't google distance will still be a vector.

What's the difference between "Geschwindigkeit" (German for speed)
and "Geschwindigkeit" (German for velocity), now that I've told you?

"Androcles" wrote in message
...

"Peter Webb" wrote in message
...
| | | What's the difference between "Geschwindigkeit" (German for
speed)
| | | and "Geschwindigkeit" (German for velocity)?
| | |
| | |
| | | Dunno exactly.
| |
| | The difference is direction.
| |
| | And if you don't know enough English to understand the English
words
| for
| | magnitude and direction,
| |
| | I do. The words you asked about were in German.
|
| No you don't, you hallucinate distance is a scalar.
|
| No, distance does not have a direction.

Geschwindigkeit doesn't have direction.
Ergo Geschwindigkeit isn't a vector. You said velocity was a vector and
speed wasn't.

Well, I guess "Geschwindigkeit" doesn't mean exactly the same thing as
"velocity".

Like I said, I don't know much German.


****in' stupid, aren't you?

| If you Google
If I don't google distance will still be a vector.

I gave you multiple web sites which quite explicitly stated the exact
opposite.



What's the difference between "Geschwindigkeit" (German for speed)
and "Geschwindigkeit" (German for velocity), now that I've told you?


Dunno. Like I said, my German isn't that good, and so I can't tell you
anything much about the precise meanings of these German words other than
what you have already said.

Incidentally, I don't speak Arabic, Mandarin or Greek either, so not much
point asking me about words in these languages either.

Not that this is a problem in learning SR; there are many excellent books in
English.

Is there a point to all of this, other than trying to avoid simple questions
like whether you believe the experimental predictions of Relativity as they
pertain to the so-called twin paradox are correct?

"Peter Webb" wrote in message
u...
|
| "Androcles" wrote in message
| ...
|
| "Peter Webb" wrote in message
| ...
| | | | What's the difference between "Geschwindigkeit" (German for
| speed)
| | | | and "Geschwindigkeit" (German for velocity)?
| | | |
| | | |
| | | | Dunno exactly.
| | |
| | | The difference is direction.
| | |
| | | And if you don't know enough English to understand the English
| words
| | for
| | | magnitude and direction,
| | |
| | | I do. The words you asked about were in German.
| |
| | No you don't, you hallucinate distance is a scalar.
| |
| | No, distance does not have a direction.
|
| Geschwindigkeit doesn't have direction.
| Ergo Geschwindigkeit isn't a vector. You said velocity was a vector and
| speed wasn't.
|
| Well, I guess "Geschwindigkeit" doesn't mean exactly the same thing as
| "velocity".
|
Yes it does, there are lots of books on the subject.

| Like I said, I don't know much German.

If you don't know enough English to understand the German words for
magnitude and direction, you shouldn't try and learn basic vector algebra
from books written in English. I would have thought this to be obvious.
There are lots of books in English on the subject.


|
| ****in' stupid, aren't you?
|
| | If you Google
| If I don't google distance will still be a vector.
|
| I gave you multiple web sites which quite explicitly stated the exact
| opposite.
|
Distance is still a vector.
Geschwindigkeit is still velocity except when it's speed.


|
| What's the difference between "Geschwindigkeit" (German for speed)
| and "Geschwindigkeit" (German for velocity), now that I've told you?
|
|
| Dunno.

The difference is speed is a magnitude and velocity is a directional vector.
What's the difference between "Geschwindigkeit" (German for speed)
and "Geschwindigkeit" (German for velocity), now that I've told you, you
useless stupid **** that lies he's studied vector algebra but learnt
nothing?
What experimental predictions of relativity do you not believe in?

"Androcles" wrote in message
...

"Peter Webb" wrote in message
u...
|
| "Androcles" wrote in message
| ...
|
| "Peter Webb" wrote in message
| ...
| | | | What's the difference between "Geschwindigkeit" (German for
| speed)
| | | | and "Geschwindigkeit" (German for velocity)?
| | | |
| | | |
| | | | Dunno exactly.
| | |
| | | The difference is direction.
| | |
| | | And if you don't know enough English to understand the English
| words
| | for
| | | magnitude and direction,
| | |
| | | I do. The words you asked about were in German.
| |
| | No you don't, you hallucinate distance is a scalar.
| |
| | No, distance does not have a direction.
|
| Geschwindigkeit doesn't have direction.
| Ergo Geschwindigkeit isn't a vector. You said velocity was a vector
and
| speed wasn't.
|
| Well, I guess "Geschwindigkeit" doesn't mean exactly the same thing as
| "velocity".
|
Yes it does, there are lots of books on the subject.

| Like I said, I don't know much German.

If you don't know enough English to understand the German words for
magnitude and direction,

I can't see how speaking English helps me understand German. They are
different languages.


you shouldn't try and learn basic vector algebra
from books written in English. I would have thought this to be obvious.
There are lots of books in English on the subject.


In fact, I have read some of them.



|
| ****in' stupid, aren't you?
|
| | If you Google
| If I don't google distance will still be a vector.
|
| I gave you multiple web sites which quite explicitly stated the exact
| opposite.
|
Distance is still a vector.


I gave you multiple web sites which quite explicitly stated the exact
opposite.

But, again, you *don't* need to know either German or vector analysis to
learn SR. My advice to you is to learn SR through an approach which doesn't
explicitly use vector algebra or any other mathematics that you are
unfamiliar with. There is no need. Similarly, unless you speak fluent
German, you would be better off with a text in a language you understand
well. You are making this very hard on yourself. Crawl before you try and
run.


Geschwindigkeit is still velocity except when it's speed.


Like I said, my German isn't very good. Doesn't have to be, there are plenty
of books on physics written in English. You might like to take these
questions on the German language to a German language newsgroup, if you are
really interested.



|
| What's the difference between "Geschwindigkeit" (German for speed)
| and "Geschwindigkeit" (German for velocity), now that I've told you?
|
|
| Dunno.

The difference is speed is a magnitude and velocity is a directional
vector.

OK.

What's the difference between "Geschwindigkeit" (German for speed)
and "Geschwindigkeit" (German for velocity), now that I've told you, you
useless stupid **** that lies he's studied vector algebra but learnt
nothing?

Like I said, I don't know very much German.


What experimental predictions of relativity do you not believe in?


None of them.

What about you?

"Peter Webb" wrote in message
...
|
| "Androcles" wrote in message
| ...
|
| "Peter Webb" wrote in message
| u...
| |
| | "Androcles" wrote in message
| | ...
| |
| | "Peter Webb" wrote in message
| | ...
| | | | | What's the difference between "Geschwindigkeit" (German
for
| | speed)
| | | | | and "Geschwindigkeit" (German for velocity)?
| | | | |
| | | | |
| | | | | Dunno exactly.
| | | |
| | | | The difference is direction.
| | | |
| | | | And if you don't know enough English to understand the
English
| | words
| | | for
| | | | magnitude and direction,
| | | |
| | | | I do. The words you asked about were in German.
| | |
| | | No you don't, you hallucinate distance is a scalar.
| | |
| | | No, distance does not have a direction.
| |
| | Geschwindigkeit doesn't have direction.
| | Ergo Geschwindigkeit isn't a vector. You said velocity was a vector
| and
| | speed wasn't.
| |
| | Well, I guess "Geschwindigkeit" doesn't mean exactly the same thing as
| | "velocity".
| |
| Yes it does, there are lots of books on the subject.
|
| | Like I said, I don't know much German.
|
| If you don't know enough English to understand the German words for
| magnitude and direction,
|
| I can't see

Ah, that's the problem. Get a pair of spectacles, after 30 years you
of not studying vector algebra obviously need them to help you see.

| you shouldn't try and learn basic vector algebra
| from books written in English. I would have thought this to be obvious.
| There are lots of books in English on the subject.
|
|
| In fact, I have read some of them.

That doesn't follow.

| | ****in' stupid, aren't you?
| |
| | | If you Google
| | If I don't google distance will still be a vector.
| |
| | I gave you multiple web sites which quite explicitly stated the exact
| | opposite.
| |
| Distance is still a vector.
|
|
| I gave you multiple web sites

But you can't see, so you gave me rubbish.
The difference is speed is a magnitude and velocity is a directional vector.
What's the difference between "Geschwindigkeit" (German for speed)
and "Geschwindigkeit" (German for velocity), now that I've told you, you
useless stupid **** that lies he's studied vector algebra but learnt
nothing?

What experimental predictions of relativity do you not believe in, you
ignorant *******?

On Nov 16, 9:23*pm, "Androcles"
wrote:

If the clocks do NOT read the same count (with drift allowed) due to
time dilation then NIST got it wrong, the speed of light cannot be a
universal constant.

No, because there's also Lorenz contraction, so from the viewpoint of
the standing-still reference frame, light moving around inside the
clock to make it tick may have moved a different distance. One thing
Special Relativity does NOT do is contradict itself.

John Savard

On Nov 15, 9:07*pm, "Androcles"
wrote:
People haven't changed in a million years, no reason to suppose
they will now. Ashkenazi savages will still claim their god is on
their side and mark themselves apart as the chosen, still clinging
to their primitive religion.
Although you are a rabid antiJewish idiot, I have some material
that supports part of your point.
Some of the kosher laws, especially the part about eating pig,
probably came about because the animals involved wrecked the ecology
of their area. Pigs are forest creatures. When raised in arid regions,
they tend to dig up gardens. They also don't forage very well in arrid
environments. They have to be raised practically by hand, which takes
a lot of work that could be used for some other productive activity.
The Jews and the Arabs are keeping a taboo whose purpose is
apparently out of date, at least among technological people.
As a reference, read:
"Cows, Pigs, Wars and Witches: The Riddles of Culture", by Marvin
Harris (Vintage, 1974).
So far as I know, Marvin Harris isn't Jewish, Ashkenazie, Sephardic
or Arab. He points out that the avoidance of pig isn't currently
helping the Jews and Arabs get along. Since most Jews don't live in an
arid environment, and live in areas where technology can compensate,
then one may well say that they are behaving in a primitive way.
I had the kosher laws specifically in mind when I said "wacky
customs." Yep, Jews like other human beings have a primitive side to
them. However, some of these primitive customs started with problems
brought about thousands of years ago by environmental changes. They
made sense at the time, and may still make sense.

On Nov 17, 7:48*am, "Androcles"
wrote:

Show me the the value of v in this,

Oh, I'm sorry. However, GR has the principle of equivalence. But as
for time dilation caused by gravitational potential, the change in
gravitational potential is agreed to by all observers. So it's already
not a problem for one person's clock to be running slow.

When you combine that with the fact that gravity *curves space*,
problems can still be, and are, avoided.

John Savard