Another comic discussion!

McDuffies · Post by **McDuffies** » Thu Oct 30, 2003 10:28 am

Jusk kiddin'... I just had to.

YarpsDat · Post by **YarpsDat** » Thu Oct 30, 2003 10:37 am

MixedMyth · Post by **MixedMyth** » Thu Oct 30, 2003 11:06 am

Nooooo! I come here, seeking out food for the soul. Maybe a deep, heartfelt discussion on the reprocusions of explosives in comics, maybe an existentialist analysis of whazzup jokes- and all I get is this! Trickery! Curse, you McDuffies, curse yooooou!

Mecharm · Post by **Mecharm** » Thu Oct 30, 2003 11:57 am

Let's talk about cookies.

RPin · Post by **RPin** » Thu Oct 30, 2003 12:38 pm

Nooooo!

Tuna Casserole!

McDuffies · Post by **McDuffies** » Thu Oct 30, 2003 7:47 pm

Sadly, I cnat remember any mentioning of cookies in my comic. But I had a few ice-creams.
As for explosives, I had two explosions: One that Voicey used to plow up the water-pump of mr. Wolf, and one obligatory explosion in background that blew up Mazzilius base. Nothing on regular bases.
I prefer running through the window with a car. Had two cases by now and who knows how many I'm planing on.
Play along, mc...

Nishichi27 · Post by **Nishichi27** » Thu Oct 30, 2003 9:47 pm

Hmmmm......blah blah blah World Peace blah blah E=Mc2 blah blah blah blah my comic.

How was that for food for the soul? I guess that was kind of junk food, huh?

Mecharm · Post by **Mecharm** » Thu Oct 30, 2003 11:16 pm

E=MC2!

YarpsDat · Post by **YarpsDat** » Fri Oct 31, 2003 4:29 am

heh, everybody knows that
E^2=m^2*c^4+p^2*c^2

E=m*c^2 is a simplified version of that formula when p=0

Mecharm · Post by **Mecharm** » Fri Oct 31, 2003 5:52 am

Oh wait, sorry, I thought NiShiChi made a witty post. E=Mc2, as in, Mc, as in mcDuffies. Hahahahahahah! *dies*

Rkolter · Post by **Rkolter** » Fri Oct 31, 2003 8:25 am

Yarpsdat, you almost got it right...

The actual special relativity equation is:

E = sqrt( p^2 * c^2 + m^2 * c^4) for all (m>0, p=0)

So long as m>0 and p=0, the equation can be simplified to:

E= sqrt(0*c^2+m^2*c^4)

or

E=MC^2

Sorry... remember, I'm a geek. Have pity.

YarpsDat · Post by **YarpsDat** » Fri Oct 31, 2003 10:16 am

actually, you got it almost right.
First:
-mass is by deffinition positive.
It just happens that in all "real" physics equation the mass is _always_ squared, so it's assumed positive for simplicity.

-and you are wrong, the real special relativity theory operates on 4-dimensional objects.
(note, for simplicity I'm assuming c=1, if you want, you can ie. divide E by c, or multiply p and m by c)
One of them is four-momenta, it looks like this: (E,px,py,pz). also writen as (E,p) where p is a regular 3D vector.
4 momentas have their equivalent of scalar multiplication
(e1,p1)*(e2,p2)=|by definition| e1*e2-p1*p2
(where p1*p2 is regular scalar multiplication of 2 vectors)

A particle that moves has some momenta p, and energy E, and by definition it's mass is equal to the module ("lenght") of it's four-momenta.
Module of four momenta is calculated pretty much like a vector's
lenght(p)=sqrt(p*p) where * is skalar multiplication
"lenght"((E,p))=sqrt((E,p)*(E,p)) where * is equivalent of skalar multiplication.

Taking all these together we have that by definition
m=sqrt(E*E-p*p)
now we can easily recreate "c"'s by looking at units
m*c*c=sqrt(E^2+p^2*c^2)
or, because sqrt is there just to cause confusion
m^2*c^4=E^2+p^2*c^4
-and this is the actual special relativity equation.

Of course it's the same as yours, but this one is derived straight from the 4-momentas, so it's more basic(is this the right word?)
later yours can be derived from this one.

sorry, remember, I'm a physics major. One year from university graduate.

Rkolter · Post by **Rkolter** » Fri Oct 31, 2003 12:44 pm

First of all, you're totally correct - (m>0) is not required, at all, in the equation. In the case of m=0, the particle is moving at light speed and no amount of energy will speed it up (or alternativey, slow it down) within it's reference frame.

When I said m>0, I was thinking in terms of particles not already moving at the speed of light. But, this is why I spend weeks on my answers in my strips. Obviously I didn't here.

First:
-mass is by deffinition positive.
It just happens that in all "real" physics equation the mass is _always_ squared, so it's assumed positive for simplicity.

Wouldn't it be better to say that mass is by definition, not negative? "m" is rest mass, and some particles have m=0. Photons for example, have zero mass, but have a lot of kenetic energy. Zero squared is zero, and zero is not by definition, a positive number.

real special relativity theory operates on 4-dimensional objects

It's particularly sad that I actually knew this, and (basically) the mathematics behind it. Color me Duuuuuh.

What I'd like to know is the mass of the Higgs, and how the heck matter acts within the Higgs field. Got any info on the status of that project?

Mr.Bob · Post by **Mr.Bob** » Fri Oct 31, 2003 12:51 pm

By Einstein's ghost! Somebody stop these two!

Luprand · Post by **Luprand** » Fri Oct 31, 2003 3:00 pm

I'll stop them by saying every vocabulary term I can remember from American Heritage class!

Virtue
Self-interest
Tyranny
Anarchy
The Human Predicament
Statesmanship
Structure
Counterpoise
The American Synthesis
Broad/Narrow Construction
...uhm ... spleen?

--Sij

McDuffies · Post by **McDuffies** » Fri Oct 31, 2003 3:02 pm

Uh...
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...uhh...
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...uh...

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..Seems like I don't have a darn thing to say...

Warren · Post by **Warren** » Fri Oct 31, 2003 4:55 pm

mcDuffies wrote:Uh...
...
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...

..

...uhh...
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...
...uh...

...

..Seems like I don't have a darn thing to say...

sounds like something worth repeating.

Nishichi27 · Post by **Nishichi27** » Fri Oct 31, 2003 8:19 pm

Luprand wrote:I'll stop them by saying every vocabulary term I can remember from American Heritage class!

Virtue
Self-interest
Tyranny
Anarchy
The Human Predicament
Statesmanship
Structure
Counterpoise
The American Synthesis
Broad/Narrow Construction
...uhm ... spleen?

--Sij

Narrow Construction? Spleen? Hmmm.......I think we should post words like antidisestablishmentarianism. (I wonder what it means...)

Yeahduff · Post by **Yeahduff** » Fri Oct 31, 2003 10:27 pm

How about a discussion about the social concerns and Marxist tendencies in Christo's site specific axiomatic structures?

YarpsDat · Post by **YarpsDat** » Sat Nov 01, 2003 4:19 am

rkolter wrote: What I'd like to know is the mass of the Higgs, and how the heck matter acts within the Higgs field. Got any info on the status of that project?

Ok, I know a bit about Higgs, but not as much as I should...

Anyways: the particle hasn't been detected yet.
It's estimated mass is something around 90 GeV (ie. mass of a proton or neutron is around 90GeV).

Interaction of Higgs and other particles is quite complicated,
let's just say it's difficult to set masses of elementar particles to some values, it's easier to introduce an all new, and weird particle, that has a non-zero average value of wave function in vacuum.
Then you write H=H0+dH (where H0 is the average value, and is constant)
And then you add interaction of particles with H, and it breaks down into two terms:
Interaction with dH
and Interaction with H0, where H0 is constant, and this term looks exactly like the one you'd get if you tried to introduce mass explicitly.