Re: Hello
- From: Wynand-Ben <paashaasggx@xxxxxxxxxxx>
- To: "cpt-fgc@xxxxxxxxxxxxx" <cpt-fgc@xxxxxxxxxxxxx>
- Date: Fri, 11 May 2018 13:14:18 +0000
[http://images4.fanpop.com/image/photos/22000000/The-Tenth-Doctor-the-tenth-doctor-22056406-500-500.gif]
________________________________
From: cpt-fgc-bounce@xxxxxxxxxxxxx <cpt-fgc-bounce@xxxxxxxxxxxxx> on behalf of
Donaldson, Alasdair <alasdair.donaldson@xxxxxxxxxx>
Sent: Friday, May 11, 2018 03:09 PM
To: cpt-fgc@xxxxxxxxxxxxx
Subject: RE: Hello
For this, we can conveniently take the stance that "decay" is orthogonal to
structure i.e. just because a particle can decay into "smaller" ones, it
doesn't mean it was made up of those particles in the first place. If we
accept this definition, everything is rosy.
I see why you put decay in inverted commas. Not sure what exactly it means if
something breaks down into other particles, but they’re not exactly its
constituent particles.
Sadly my 1 year of varsity physics isn’t quite enough for me to follow the high
level crap that is needed. One thing though, if CPT symmetry holds
(https://en.wikipedia.org/wiki/CPT_symmetry), (although we know that the
observable universe does not because of the 2nd law of thermodynamics), time
reversal (asymmetry) would be okay if you also have the asymmetry on the C/P
side – so anti-matter as an example.
CPT symmetry - Wikipedia<https://en.wikipedia.org/wiki/CPT_symmetry>
en.wikipedia.org
Charge, parity, and time reversal symmetry is a fundamental symmetry of
physical laws under the simultaneous transformations of charge conjugation (C),
parity transformation (P), and time reversal (T).
https://en.wikipedia.org/wiki/T-symmetry
Hmmm. Why exactly would both position in space in 3 dimensions and acceleration
not change upon time reversal, but velocity would?
Maybe I should just give up on this.
From: cpt-fgc-bounce@xxxxxxxxxxxxx [mailto:cpt-fgc-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Ilitirit Sama
Sent: 11 May 2018 2:41 PM
To: cpt-fgc@xxxxxxxxxxxxx
Subject: Re: Hello
Slight Correction: The particle-pair-near-event-horizon phenomenon is
responsible for Hawking Radiation.
On Fri, May 11, 2018 at 2:35 PM, Ilitirit Sama
<ilitirit@xxxxxxxxx<mailto:ilitirit@xxxxxxxxx>> wrote:
On the point of the particles that existing now having existed in the past,
this is not always true even when we disregard decay. Particles can be
destroyed by encountering an anti-particle. This happens continuously around
us. Particles and anti-particles appear "out-of-nowhere" and annihilate each
other.
Taken from the other perspective: A particle that exists now may not exist in
the future.
So... how can a particle that exists now, not have existed before?
[cid:image002.jpg@01D3E938.393BD820]
The idea is that around a Black Hole, there is something known as the Event
Horizon. Anything that crosses that horizon is lost to the Black Hole. So
what happens is a particle pair (particle + anti-particle) appear close to this
horizon but one crosses the event horizon but the other doesn't. Suddenly you
have a "brand new" particle that never existed in the past.
This is known as Hawking
Radiation<https://urldefense.proofpoint.com/v2/url?u=https-3A__en.wikipedia.org_wiki_Hawking-5Fradiation&d=DwMFaQ&c=0TzQCy9lgR5hSW-bDg5HA76y7nf4lvOzvVop5GM3Y80&r=3188cCLKqrRVUgvzUimFxNxHH_Hcs83no5DXOBKTq-g&m=FzOMGrVYOGnTy9Gam72x4X_6cZVynJpl34JDRos7rSc&s=-GGXDgOgarydX9LU1rXUZacHnMwLiRB1wq0FVZlD2Rc&e=>.
Fun thing to ponder: If particles are always generated in pairs that
annihilate, why does the Universe exist?
https://home.cern/topics/antimatter/matter-antimatter-asymmetry-problem<https://urldefense.proofpoint.com/v2/url?u=https-3A__home.cern_topics_antimatter_matter-2Dantimatter-2Dasymmetry-2Dproblem&d=DwMFaQ&c=0TzQCy9lgR5hSW-bDg5HA76y7nf4lvOzvVop5GM3Y80&r=3188cCLKqrRVUgvzUimFxNxHH_Hcs83no5DXOBKTq-g&m=FzOMGrVYOGnTy9Gam72x4X_6cZVynJpl34JDRos7rSc&s=sBY87F5ZrHS1Ydoveb7qv9lwUBCocZoiTq9kg448ypk&e=>
On Fri, May 11, 2018 at 2:21 PM, Ilitirit Sama
<ilitirit@xxxxxxxxx<mailto:ilitirit@xxxxxxxxx>> wrote:
are there a specific set of particles that exist (I mean at the lowest/base
level, so no worries on decay) within the set ‘closed system’ of the universe
This is a surprisingly tricky question - one that I may not be able to explain
adequately. If I understand correctly, you're asking if particles which when
smashed together at high velocities don't reveal smaller constituents? In that
case, it would only be the electron, photon and the lightest neutrino,
according to the Standard Model. But the Standard model says there are more
elementary particles!
The Standard Model says that according to our current understanding +
observations the Universe is made up of these particles:
[cid:image004.jpg@01D3E938.393BD820]
These are the elementary particles i.e. they are not made up of sub-components.
However, some of them e.g. the muon commonly decays into electrons and
neutrinos. So how then can a Muon be classified as elementary? The surprising
answer is because it fits the model.
This is where it becomes tricky. When Newton formulated the laws of motion
etc, it was believed that that's how the Universe works. So we built models
around those. This is of course until Einstein effed everything up with
relativity. So then we built models around that, which in turn was
incompatible with Quantum Theory. So scientists are in a tricky situation
right now. If they try to go completely by observation, their models break
down in some cases. If they ignore the models completely, our understanding
about the world approaches zero. So what they do is accept models which they
believe to fit the observations best, and they keep the parts that don't work
to themselves. I'm being facetious, but for public acceptance and awareness,
they simply don't focus on the parts that don't "work".
So... back to your question. Which particles are not composed of others?
Maybe the electron? According the model (theoretical physics), it should not
decay. According to experimental physics, it should not decay before 6.6 x
10^28 years (this does not mean it will decay after that). What could it decay
into? Our model doesn't cater for that, so the question is "undefined". So
for the sake of the model, we accept that the Electron does not decay. What
about the muon? For this, we can conveniently take the stance that "decay" is
orthogonal to structure i.e. just because a particle can decay into "smaller"
ones, it doesn't mean it was made up of those particles in the first place. If
we accept this definition, everything is rosy. If we don't, we need to come up
with alternate explanations, which we cannot do right now. This could
potentially be something analogous to the transition between Newtonian and
Relativist Mechanics i.e. Newton could explain most of the world, but not
everything. Relativity explained Newton, plus things it couldn't (except for
Quantum Mechanics).
This is roughly where string theory comes in: In String Theory, everything is
made up of vibrating strings. They are the most fundamental building block of
reality. Problem: There is no experimental basis for String Theory.
The final "wrinkle" is that we're not even sure that the question of whether or
not a fundamental "particle" exists even makes sense because of wave-particle
duality and Heisenberg etc. I mean, it makes sense in terms of the Standard
Model, but only makes sense in certain contexts in quantum physics, as far as I
know. As Feynman once said, it's not true to say an Electron acts like a
particle, or that it acts like a wave - an Electron acts like an Electron. I
suppose this is one way of saying Nature does whatever it likes regardless of
what we think.
So to answer your question: Yes, because if there aren't our understanding of
the Universe breaks down.
On Fri, May 11, 2018 at 9:19 AM, Donaldson, Alasdair
<alasdair.donaldson@xxxxxxxxxx<
mailto:alasdair.donaldson@xxxxxxxxxx>> wrote:
One other thing here. There are specific particles that make up me. If I do
back in time, those particles should exist at that point as well. I have no
idea what those particles were up to at that time. I would need to displace the
particles in that timeline with uh, me. So, the time machine would need to swap
the particles from that timeline with my particles.
In terms of your theory there, are there a specific set of particles that exist
(I mean at the lowest/base level, so no worries on decay) within the set
‘closed system’ of the universe, regardless of time or distance? If that’s the
case, then my point above becomes irrelevant because the specific particles
that make up me are never duplicated in a specific time.
Um… yeah, also not entirely certain on the idea of the universe being a fully
closed system.
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
[
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>] On
Behalf Of Ilitirit Sama
Sent: 10 May 2018 3:49 PM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
Brief primer on entanglement:
Particles can be correlated via some property (usually something called
"spin"). If two particles are "normally" correlated, then when you measure the
spin of particle A, then it will be identical to the spin of particle B. If
they are inversely correlated, then once you measure the spin of particle A,
particle B will have the opposite spin. The reason this is significant is
because you can only know the spin of a particle once you measure it. Nothing
really interesting about that. Except that entanglement holds regardless of
the distance between the particles. How does particle B "know" that particle A
was measured? Noone knows yet. This is what Einstein called "spooky action at
a distance".
In the resolution to Stu's question, I proposed a form entanglement that works
across time, not distance. Maybe particles are already entangled across time -
we don't know this for sure yet, but there is some evidence that may be
interpreted in a way that leads to this conclusion. There are experiments
which involve measuring spin of Particle A but not physically looking at it,
then measuring the spin of Particle B after forcing to "spin" in a certain way.
When you look at the spin for Particle A, you'll find that it will always be
correlated to B, even though you measured it first! (I'm taking liberties with
a few technical details, but the gist is the same). How did Particle A "know"
what the spin of Particle B was going to be?
On Thu, May 10, 2018 at 3:38 PM, Ilitirit Sama
<ilitirit@xxxxxxxxx<
mailto:ilitirit@xxxxxxxxx>> wrote:
Perhaps this could be thought of as some form of cross-temporal entanglement
i.e. No matter or energy is actually transferred; your "configuration" is just
transferred. After all, in the Standard Model, every electron is identical.
And I'm sure the same goes for other fundamental particles (who don't undergo
rapid decay). So it would be the same as making an entangled digital "copy".
Quotes used because it's not a copy (otherwise you would exist in both
timelines simultaneously); your fundamental particle/energy make-up is just
entangled across the temporal boundary with particles in the other timeline.
On Wed, May 9, 2018 at 3:22 PM, Donaldson, Alasdair
<alasdair.donaldson@xxxxxxxxxx<
mailto:alasdair.donaldson@xxxxxxxxxx>> wrote:
Okay, something has been bothering me since our discussion on the whole kill
Hitler thing. It’s more on the mechanics of time travel than any of the
philosophical side.
We have two popular theories on time travel. The first is the ‘Back to the
Future’ (BTTF) one where one reality exists. The other is the multiple time
streams dependent upon the choices made. By going back in time, you can create
a new timeline, but the old one will still exist. In that one, you kill Hitler
and a new timeline appears in which Hitler is dead. The old timeline still
exists.
Anyways, my issue is this. In the BTTF one, there is a temporary breach on the
whole conservation of energy thing. If you go back in time, you have introduced
additional energy to that universe at that point. In the long run, it works
out. Even if you die in the past, at the point where you went back in time,
things even out. This is fine if you consider the history of the
universe/timeline as a whole in which conversation takes place.
In the multiple streams side, it is a different matter. Say you go back in time
and shoot Hitler. In that timeline (with Hitler dead), there is additional
energy in that universe – from the chemical reaction of the gun powder, the
thermal energy you are giving off, the mass of the bullet – all of that. This
is energy that you have removed from your original timeline. If time splits at
that point then you have an imbalance between the two timelines in terms of
conservation of energy.
No doubt there are answers to this, but I’m guessing I need more than just 1st
year physics to understand it.
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
[
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>] On
Behalf Of Manase Zote
Sent: 09 May 2018 3:06 PM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
Happy birthday Ryan!!!
On Wed, 09 May 2018, 13:24 Ryan Williams,
<ryan820509@xxxxxxxxx<
mailto:ryan820509@xxxxxxxxx>> wrote:
Tsek *lol*
On Wed, 9 May 2018, 11:14 lindsey kiviets,
<lindseyak@xxxxxxxxxxx<
mailto:lindseyak@xxxxxxxxxxx>> wrote:
HBD sep bletter
________________________________
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
<cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>> on behalf
of Donaldson, Alasdair
<alasdair.donaldson@xxxxxxxxxx<
mailto:alasdair.donaldson@xxxxxxxxxx>>
Sent: 09 May 2018 06:45 AM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: RE: Hello
Happy birthday. Hope it is all cheerful.
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
[
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>] On
Behalf Of Ryan Williams
Sent: 09 May 2018 8:24 AM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
Thank you kind sirs :)
On Wed, 9 May 2018, 08:16 euraima tobias,
<euraima@xxxxxxxxx<
mailto:euraima@xxxxxxxxx>> wrote:
Happy birfday Sapu!
On Wed, 09 May 2018 at 07:50, Nicholas Robertson-Muir
<nicmuir@xxxxxxxxx<
mailto:nicmuir@xxxxxxxxx>> wrote:
Heppy birthday Sap
On Wed, May 9, 2018, 07:07 Ryan Williams
<ryan820509@xxxxxxxxx<
mailto:ryan820509@xxxxxxxxx>> wrote:
Thx bro!
On Wed, 9 May 2018, 04:33 Moshe Shevel,
<jaguguarang@xxxxxxxxx<
mailto:jaguguarang@xxxxxxxxx>> wrote:
Happy birthday SAP, have an awesome one!
On Mon, 07 May 2018, 11:56 lindsey kiviets
<lindseyak@xxxxxxxxxxx<
mailto:lindseyak@xxxxxxxxxxx>> wrote:
lol donkey from Shrek.
Will probably finish it tonyt. What happened to Preacher? did you watch that
kla? I stopped after a few epis in s2.
________________________________
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
<cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>> on behalf
of Ilitirit Sama <ilitirit@xxxxxxxxx<
mailto:ilitirit@xxxxxxxxx>>
Sent: 07 May 2018 08:46 AM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
Finished Happy in one sitting. Went from awesome to
"oh-well-I-started-it-might-as-well-finish-it". Should have just featured him
involved in random acts of senseless violence every episode. Also would have
been 100x better if Donkey from Shrek made an appearance.
I rate it a 6.9/10.
Money Heist is good, not spectacularly so, but good nonetheless. It's
virtually guaranteed Hollywood will try to adapt this for the Western Market.
On Mon, May 7, 2018 at 10:40 AM, lindsey kiviets
<lindseyak@xxxxxxxxxxx<
mailto:lindseyak@xxxxxxxxxxx>> wrote:
I tried watching heist but I couldn't get over the Spanish talk.
Did you watch Happy?
________________________________
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
<cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>> on behalf
of Ilitirit Sama <ilitirit@xxxxxxxxx<
mailto:ilitirit@xxxxxxxxx>>
Sent: 07 May 2018 08:39 AM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
There are loads of good foreign series/movies. You just haven't been exposed
to them.
On Mon, May 7, 2018 at 10:35 AM, lindsey kiviets
<lindseyak@xxxxxxxxxxx<
mailto:lindseyak@xxxxxxxxxxx>> wrote:
oh no!!!
these foreign guys are making huge strides in filming. I watched an episode of
the rain, and if it weren't for the Russian accents I would've said it was some
kinda big budget American series.
________________________________
From: cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>
<cpt-fgc-bounce@xxxxxxxxxxxxx<
mailto:cpt-fgc-bounce@xxxxxxxxxxxxx>> on behalf
of Ilitirit Sama <ilitirit@xxxxxxxxx<
mailto:ilitirit@xxxxxxxxx>>
Sent: 07 May 2018 08:27 AM
To: cpt-fgc@xxxxxxxxxxxxx<
mailto:cpt-fgc@xxxxxxxxxxxxx>
Subject: Re: Hello
I started watching Money Heist. The mastermind behind the heist uses what
looks like a Hori Fightstick to control the cameras :D
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