Wade says, "...along with token Negro scientist, which Hollywood will not
let us do without! Excellent video, assuming you can see it."
Jamilul Huq, 2 weeks ago posted...
I have a question. Since you can't have anything smaller than the Planck
length, then the circumference of a circle will always be a discrete number
of Planck length as will be its diameter. If that is so, then Pi would most
definitely be a rational number. I wonder what Zeno would have thought about
time and length being finite?
Ahhh..success!
Planck Length Explained
-
Wade Hampton III
- Posts: 2339
- Joined: Fri Oct 18, 2013 10:40 pm
- Location: Pontiac, SC
-
Wade Hampton III
- Posts: 2339
- Joined: Fri Oct 18, 2013 10:40 pm
- Location: Pontiac, SC
Re: Planck Length Explained
Planck Temperature!
The dialogue went something like this:
"It's hot!"
"Just how hot is it?"
"Well, it's hotter than YOU can imagine!"
"Ha! I dunno kid! I can IMAGINE quite a lot!"
57609
https://www.youtube.com/watch?v=GP_Mhp3kUKY
The dialogue went something like this:
"It's hot!"
"Just how hot is it?"
"Well, it's hotter than YOU can imagine!"
"Ha! I dunno kid! I can IMAGINE quite a lot!"
57609
- VERY Hot!
- 57609.JPG (45.53 KiB) Viewed 1841 times
-
Wade Hampton III
- Posts: 2339
- Joined: Fri Oct 18, 2013 10:40 pm
- Location: Pontiac, SC
Re: Planck Length Explained
Planck Epochs!
INFLATION…The FIRST SECOND primordial expansion from a quantum object smaller
than an atom to a UNIVERSE light years wide!
57629
Planck Epoch from zero to approx. 10^-43 seconds (1 Planck Time):
This is the closest that current physics can get to the absolute beginning of
time, and very little can be known about this period. General relativity proposes
a gravitational singularity before this time (although even that may break down
due to quantum effects), and it is hypothesized that the four fundamental forces
(electromagnetism, weak nuclear force, strong nuclear force and gravity) all have
the same strength, and are possibly even unified into one fundamental force, held
together by a perfect symmetry which some have likened to a sharpened pencil standing
on its point (i.e. too symmetrical to last). At this point, the universe spans a
region of only 10^-35 meters (1 Planck Length), and has a temperature of over
10^32 °C (the Planck Temperature).
Grand Unification Epoch, from 10^ –43 seconds to 10^–36 seconds:
The force of gravity separates from the other fundamental forces (which remain
unified), and the earliest elementary particles (and antiparticles) begin to be
created.
Inflationary Epoch, from 10^–36 seconds to 10^–32 seconds:
Triggered by the separation of the strong nuclear force, the universe undergoes an
extremely rapid exponential expansion, known as cosmic inflation. The linear dimensions
of the early universe increases during this period of a tiny fraction of a second by a
factor of at least 10^26 to around 10 centimeters (about the size of a grapefruit).
Electroweak Epoch, from 10^–36 seconds to 10–12 seconds:
As the strong nuclear force separates from the other two, particle interactions
create large numbers of exotic particles, including W and Z bosons and Higgs bosons
(the Higgs field slows particles down and confers mass on them, allowing a universe
made entirely out of radiation to support things that have mass).
Quark Epoch, from 10^–12 seconds to 10^–6 seconds:
Quarks, electrons and neutrinos form in large numbers as the universe cools off to
below 10 quadrillion degrees, and the four fundamental forces assume their present
forms. Quarks and antiquarks annihilate each other upon contact, but, in a process
known as baryogenesis, a surplus of quarks (about one for every billion pairs)
survives, which will ultimately combine to form matter.
Hadron Epoch, from 10^–6 seconds to 1 second:
The temperature of the universe cools to about a trillion degrees, cool enough to
allow quarks to combine to form hadrons (like protons and neutrons). Electrons
colliding with protons in the extreme conditions of the Hadron Epoch fuse to form
neutrons and give off massless neutrinos, which continue to travel freely through
space today, at or near to the speed of light. Some neutrons and neutrinos re-combine
into new proton-electron pairs. The only rules governing all this apparently random
combining and re-combining are that the overall charge and energy (including mass
- energy) be conserved.
*
INFLATION…The FIRST SECOND primordial expansion from a quantum object smaller
than an atom to a UNIVERSE light years wide!
57629
- It's About Time!
- 57629.jpg (122.1 KiB) Viewed 1838 times
This is the closest that current physics can get to the absolute beginning of
time, and very little can be known about this period. General relativity proposes
a gravitational singularity before this time (although even that may break down
due to quantum effects), and it is hypothesized that the four fundamental forces
(electromagnetism, weak nuclear force, strong nuclear force and gravity) all have
the same strength, and are possibly even unified into one fundamental force, held
together by a perfect symmetry which some have likened to a sharpened pencil standing
on its point (i.e. too symmetrical to last). At this point, the universe spans a
region of only 10^-35 meters (1 Planck Length), and has a temperature of over
10^32 °C (the Planck Temperature).
Grand Unification Epoch, from 10^ –43 seconds to 10^–36 seconds:
The force of gravity separates from the other fundamental forces (which remain
unified), and the earliest elementary particles (and antiparticles) begin to be
created.
Inflationary Epoch, from 10^–36 seconds to 10^–32 seconds:
Triggered by the separation of the strong nuclear force, the universe undergoes an
extremely rapid exponential expansion, known as cosmic inflation. The linear dimensions
of the early universe increases during this period of a tiny fraction of a second by a
factor of at least 10^26 to around 10 centimeters (about the size of a grapefruit).
Electroweak Epoch, from 10^–36 seconds to 10–12 seconds:
As the strong nuclear force separates from the other two, particle interactions
create large numbers of exotic particles, including W and Z bosons and Higgs bosons
(the Higgs field slows particles down and confers mass on them, allowing a universe
made entirely out of radiation to support things that have mass).
Quark Epoch, from 10^–12 seconds to 10^–6 seconds:
Quarks, electrons and neutrinos form in large numbers as the universe cools off to
below 10 quadrillion degrees, and the four fundamental forces assume their present
forms. Quarks and antiquarks annihilate each other upon contact, but, in a process
known as baryogenesis, a surplus of quarks (about one for every billion pairs)
survives, which will ultimately combine to form matter.
Hadron Epoch, from 10^–6 seconds to 1 second:
The temperature of the universe cools to about a trillion degrees, cool enough to
allow quarks to combine to form hadrons (like protons and neutrons). Electrons
colliding with protons in the extreme conditions of the Hadron Epoch fuse to form
neutrons and give off massless neutrinos, which continue to travel freely through
space today, at or near to the speed of light. Some neutrons and neutrinos re-combine
into new proton-electron pairs. The only rules governing all this apparently random
combining and re-combining are that the overall charge and energy (including mass
- energy) be conserved.
*