Re: Nova / Einstein's 100th anniversary show


"The Ghost In The Machine" <ewill@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:jbhu03-apb.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
| In sci.physics.relativity, Androcles
| <Androcles@xxxxxxxxxxx>
| wrote
| on Thu, 29 Sep 2005 19:54:12 GMT
| <EDX_e.10799$VI6.3134@xxxxxxxxxxxxxxxxxxxxxxxxx>:
| >
| > "The Ghost In The Machine" <ewill@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
| > message news:nr8t03-fu7.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
| > | In sci.physics.relativity, Androcles
| > | <Androcles@xxxxxxxxxxx>
| > | wrote
| > | on Thu, 29 Sep 2005 11:26:08 GMT
| > | <kbQ_e.9605$RW.8597@xxxxxxxxxxxxxxxxxxxxxxxxx>:
| > | >
| > | > <warded8@xxxxxxx> wrote in message
| > | > news:1127967111.208263.122110@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | > | Just read about this cool new two-hour edition of NOVA, called
| > | > | "Einstein's Big Idea." It's supposed to be airing for the
100th
| > | > | anniversary of the e=mc2 equation and really comprehensive.
There
| > are
| > | > | vivid re-enactments of Einstein and his wife, and it even goes
| > into
| > | > | detail about the scientists that have preceded him, like
Faraday
| > and
| > | > | even those that followed him - like Lise Meitner, who
ultimately
| > came
| > | > | up with the nuclear fusion theory. The producer is David
Bodanis,
| > who
| > | > | also wrote that book "e=mc2."
| > | > |
| > | > | Premieres October 11 at 8 pm on PBS stations - here's a link
for
| > more
| > | > | info. Check it out. Here's a comprehensive site all about
this,
| > with
| > | > | lots of stories:
| > | > |
| > | > | http://www.pbs.org/wgbh/nova/einstein/
| > | >
| > | > Is this to celebrate the fall of science and the rise of
| > phuckwitism?
| > | > Androcles.
| > | >
| > |
| > | In any event, the equation is simply wrong.
| > |
| > | [1] E = 1/2 mv^2 - GmM/r (or 1/2 p^2/m - GmM/r)
| > | [2] E^2 = m^2c^4 + p^2c^2 (sans gravitational correction; I'd have
| > | to look it up)
| > |
| > | depending on whether one is Newtonian or relativistic.
| >
| > Look this up instead (fixed font needed)
| > +------------------+----------+
| > | mc^2 | mv^2/2 |
| > | | |
| > | | |
| > | | |
| > | | |
| > | Area | |
| > | =m^2c^4 | |
| > | | |
| > | | |
| > | | |
| > | | |
| > | | |
| > +------------------+----------+
| > | |
| > | | |
| > | Area | Area =?
| > | = p^2*c^2 | |
| > | ------- |
| > | 2 | .
| > | |
| > +------------------+ - - . . .+
| >
| > Notice anything missing at v = 0.9978c?
| > Nah... just a quarter of the energy. Better use
| > the relativist's look up table to account for it.
| > No one will notice.
| > gamma Desired velocity
| > 1 0.000000000000000
| > 10 0.994987437106620
| > 100 0.999949998749938
| > 1000 0.999999499999875
| > 10000 0.999999995000000
| > 100000 0.999999999950000
| > 1000000 0.999999999999500
| > 10000000 0.999999999999995
|
| Actual velocity = ??

Measure the energy, then whatever it is find a velocity
between 0.9c and 0.999999999999999c that fits.
Unless you really believe a careful particle velocity measurement
to 4 sig. figs. is carried out before each experiment...


| >
| > BTW, make sure you choose a frequency low
| > enough not to break Einstein's speed limit,
|
| Erm...what is the frequency *high* enough that
| *will* break Einstein's speed limit?

It was you that told me with absolute confidence the LHC
is designed by competent people, sarcastically spouting
numbers to convince me.

|
| > we don't want any physical laws broken, the hadrons
| > may get a speeding ticket from God and she doesn't
| > play dice.
|
| God plays dice very willingly. She told me so. :-)

Now you are going against the Holy word of her prophet Einstein.
That's heresy, you'll never get to relativity heaven and Dinky van der
mumble, Auntie Alice & co. will burn you at the immortal fumble.

|
| However, E=mc^2 is still wrong.

Hmm...
___________________________
O|||||O
___________________________

When two identical BBs are ejected from opposite ends of a straw, the
compressed
spring from an old retracting ball point pen between them providing the
energy, each BB has E = 1/2 mc^2, c the velocity of the BB.
The compressed spring had Energy = mc^2... at least according to Newton.
___________________________
<--O \/\/\/\/ O-->
___________________________

E = mc^2/sqrt(1-v^2/c^2) is a bit of a problem, especially if the straw
was moving at v=c, one of the BBs didn't move and the other had velocity
2c.
Dunno what's special about using c for lightspeed, either.

Androcles.

.

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