"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?