| Author |
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keith
Guest
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 Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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On Fri, 04 Feb 2005 19:48:24 -0800, ~~SciGirl~~ wrote:
| Quote: | Mathew Orman, FTL dream? I must have missed something.
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Try:
http://groups-beta.google.com/groups?q=group:sci.electronics.design+author:mathew+author:orman&start=0&scoring=d&num=10&hl=en&ie=UTF-8&lr=&as_drrb=q&as_qdr=&as_mind=1&as_minm=1&as_miny=1981&as_maxd=5&as_maxm=2&as_maxy=2005&safe=off&
| Quote: | Yes, I suppose
its true that "You can realize anything but that does not mean that the
physical universe will ever cooperate with your musings." After all, it
was considered common knowledge that a cause must always precede an
effect, yet it is believed the light left the tube before it entered.
All please note: I am only 14 and am one year ahead in math, the most I
know is basic algebra, so don't try to tell me anything with a lot of
equations as I will probably be unable to comprehend it. The one part
of all this I cannot yet understand is the math. No calculus, please.
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14 = 9th grade? Algebra, sounds about right. You're doing well. Keep up
the interest.
--
Keith
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John Woodgate
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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I read in sci.electronics.design that ~~SciGirl~~ <palmtree117@juno.com>
wrote (in <1107622905.195033.307140@z14g2000cwz.googlegroups.com>) about
'breaking the speed of light article on howstuffworks.com', on Sat, 5
Feb 2005:
| Quote: | This is a question I have had since reading about Maxwell's equations...
in each one of them, there is this upside-down triangle symbol that
looks just like the delta triangle flipped over. What is this symbol and
what does it mean???
|
It's called 'del' or 'nabla', and it's a symbol in calculus. You said
'no calculus', so it's a bit difficult to help you any more. The first
paragraph at the URL:
http://www.hypercomplex.com/education/intro_tutorial/nabla.html
gives you the history, but then it goes deeply into vector calculus in
three dimensions.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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"14 = 9th grade? Algebra, sounds about right. You're doing well. Keep
up
the interest."
Actually, 8th grade, but in 9th grade math. Still in 8th grade science,
but will be working on a research project a couple days a week instead
of class because class got too easy for me and I was bored to death.
They're doing convection, conduction, and radiation. It's like sitting
in a chair for an hour listening to a repetitive explanation of why one
plus one equals two.
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John Woodgate
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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I read in sci.electronics.design that ~~SciGirl~~ <palmtree117@juno.com>
wrote (in <1107622006.529101.272340@g14g2000cwa.googlegroups.com>) about
'breaking the speed of light article on howstuffworks.com', on Sat, 5
Feb 2005:
| Quote: | I have already learned that. E=mc^2 is only unification of mass and
energy. But, nothing I've read has described significant evidence that
there is proof nothing can cross the barrier.
|
It's not possible to PROVE a negative of that nature. One could observe
particle behaviour for a million years with no result and then just one
might cross.
Since you understand special relativity, what do you think is the
significance of the equations when v is greater than c? Do the negative
and imaginary solutions not bother you?
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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If there was some way to achieve a negative volume (it seems SO
impossible but who knows?) what would happen to the matter? Say we had
a piece of metal, and accelerated it past C. From another frame of
reference, you'd see it getting shorter as it approached C. If it went
faster than C, would it eventually become something with mass but no
volume, and then start regaining its volume in the opposite direction?
(ugh I don't think I'm explaining myself very well, I need a picture of
some sort.) It's kind of this idea, and absolute value comes in
somewhere, but I can't really express it well. Say speed was a number
line, and C was zero. We so far can only move on one side of C. What
would be on the other side, if it exists? Which side are we on? Or is
this way of thinking about it totally one hundred percent impossible
and wrong? |
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Nico Coesel
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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"~~SciGirl~~" <palmtree117@juno.com> wrote:
| Quote: | Mathew Orman, FTL dream? I must have missed something. Yes, I suppose
its true that "You can realize anything but that does not mean that the
physical universe will ever cooperate with your musings." After all, it
was considered common knowledge that a cause must always precede an
effect, yet it is believed the light left the tube before it entered.
|
A couple of months ago Mathew Orman posted messages about an
expirement he did and he thought he had discovered a way to make an
electrical signal travel through a cable faster than light. In reality
he made a mistake while doing his measurements which he could have
seen himself if he knew something (more) about transmission of signals
in cables.
--
Reply to nico@nctdevpuntnl (punt=.)
Bedrijven en winkels vindt U op www.adresboekje.nl |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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Just for the record... I intend to be a meteorologist when I grow up,
not a physicist. |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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It all drives me mentally crazy, it's really abstract. I try not to be
bothered by it, because someday it might be figured out. Some things
maybe should be left unknown for a time. I believe there is a form of
energy we haven't discovered yet that will explain such things, and
that there is some property of it - and I'm not quite sure what, just a
vague idea - that can somehow be flipped or inversed or something like
that. It's hard to explain because it is really just a vague idea in my
own mind.
I'm not going to just rule out the possibility of exceeding C, though,
because the equations say it's not possible. Maybe we need to further
revise our perceptions of space and time, not the equations, or
something like that.
The amount man knows in comparison to the amount there is out there to
know is ridiculously tiny, so we really cannot rely on the equations.
Every fundamental quality of the universe we describe might be
incorrect. |
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John Woodgate
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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|
I read in sci.electronics.design that ~~SciGirl~~ <palmtree117@juno.com>
wrote (in <1107623471.845920.130230@l41g2000cwc.googlegroups.com>) about
'breaking the speed of light article on howstuffworks.com', on Sat, 5
Feb 2005:
| Quote: | If there was some way to achieve a negative volume (it seems SO
impossible but who knows?) what would happen to the matter? Say we had
a piece of metal, and accelerated it past C. From another frame of
reference, you'd see it getting shorter as it approached C. If it went
faster than C, would it eventually become something with mass but no
volume, and then start regaining its volume in the opposite direction?
(ugh I don't think I'm explaining myself very well, I need a picture of
some sort.) It's kind of this idea, and absolute value comes in
somewhere, but I can't really express it well. Say speed was a number
line, and C was zero. We so far can only move on one side of C. What
would be on the other side, if it exists? Which side are we on? Or is
this way of thinking about it totally one hundred percent impossible
and wrong?
I've just asked you roughly the same question in a previous e-mail! It's |
because of paradoxes such as you describe that we take Special
Relativity to mean that FTL for objects made of matter isn't possible.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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I find all this interesting, but I just enjoy meteorology more. This is
a little too abstract for me. |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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I looked at it...
http://groups-beta.google.com/groups?q=group:sci.electronics.design+a...
It's certainly seeming to be a controversial topic. I'm keeping an open
mind. Maybe, maybe not. But I don't really agree with the thinking that
the cable could move things faster than lightspeed.
In however many billion years, the Sun will become a supergiant and
will engulf the Earth. At that time, humans will probably need to
relocate. By then, if it is possible, we might be able to teleport or
something. It can be disputed that we might be extinct by then anyways,
but from my religious beliefs (the Baha'i faith) humans will still
exist then. Please, nobody start an argument over the link between
science and religion or something, I will let you think what you think
in peace. Different opinions are okay. |
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Jim Thompson
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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On 5 Feb 2005 09:41:17 -0800, "~~SciGirl~~" <palmtree117@juno.com>
wrote:
| Quote: | Just for the record... I intend to be a meteorologist when I grow up,
not a physicist.
|
With your obvious mental talents, I'd aim a wee bit higher... unless
you want to be on the TV news hour ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food. |
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Jim Thompson
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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On 5 Feb 2005 09:01:45 -0800, "~~SciGirl~~" <palmtree117@juno.com>
wrote:
| Quote: | This is a question I have had since reading about Maxwell's
equations... in each one of them, there is this upside-down triangle
symbol that looks just like the delta triangle flipped over. What is
this symbol and what does it mean???
I took a quantum physics test on allthetests.com (to find it just type
"quantum" in the search box, there is only one) and I scored 8 out of
12.
|
It's the "del" operator of vector Calculus. See page 3 of...
http://35.9.69.219/home/modules/pdf_modules/m479.pdf
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food. |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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The timer just went off, I have to go take my pasta salad off the
stove. I'll check back in a little while. |
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~~SciGirl~~
Guest
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| Posted:
Sat Feb 05, 2005 9:42 pm Post subject:
Re: breaking the speed of light article on howstuffworks.com |
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"It's the "del" operator of vector Calculus. See page 3 of..."
Oh, great, the calculus again. There's no escaping. Of course, it had
to be a calculus operator. (groan) |
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