Australian Politics Forum - Spiritually Speaking... why is the universe

Bobby.

Gold Member

Offline

Australian Politics

Posts: 107035
Melbourne
Gender: male

Re: Spiritually Speaking... why is the universe
Reply #30 - Jul 3^rd, 2013 at 8:28am

muso wrote on Jul 2^nd, 2013 at 10:24pm:

Bobby. wrote on Jul 2^nd, 2013 at 8:46pm:

force = mass x acceleration.

That's an approximation of the following equations for low relative velocities. f = ma is not really useful for cosmology. It's useless for anything accurate. You can't even use it for GPS satellite orbits.

t = (c/a) sinh(aT/c) = sqrt[(d/c)2 + 2d/a]

d = (c2/a) [cosh(aT/c) - 1] = (c2/a) (sqrt[1 + (at/c)2] - 1)

v = c tanh(aT/c) = at / sqrt[1 + (at/c)2]

T = (c/a) sinh-1(at/c) = (c/a) ch-1 [ad/c2 + 1]

γ = cosh(aT/c) = sqrt[1 + (at/c)2] = ad/c2 + 1

Dear Muso,
f=ma was just used to explain the reverse effect of dark energy.
I know about relativistic correction.

We don't know if dark energy is an illusion or not.

Back to top

IP Logged

muso

Gold Member

Offline

Posts: 13151
Gladstone, Queensland
Gender: male

Re: Spiritually Speaking... why is the universe
Reply #31 - Jul 3^rd, 2013 at 9:09am

Bobby. wrote on Jul 3^rd, 2013 at 8:28am:

muso wrote on Jul 2^nd, 2013 at 10:24pm:

Bobby. wrote on Jul 2^nd, 2013 at 8:46pm:

force = mass x acceleration.

That's an approximation of the following equations for low relative velocities. f = ma is not really useful for cosmology. It's useless for anything accurate. You can't even use it for GPS satellite orbits.

t = (c/a) sinh(aT/c) = sqrt[(d/c)2 + 2d/a]

d = (c2/a) [cosh(aT/c) - 1] = (c2/a) (sqrt[1 + (at/c)2] - 1)

v = c tanh(aT/c) = at / sqrt[1 + (at/c)2]

T = (c/a) sinh-1(at/c) = (c/a) ch-1 [ad/c2 + 1]

γ = cosh(aT/c) = sqrt[1 + (at/c)2] = ad/c2 + 1

Dear Muso,
f=ma was just used to explain the reverse effect of dark energy.
I know about relativistic correction.

We don't know if dark energy is an illusion or not.

So you're an agnostic with respect to dark energy? It has its true believers and its deniers.

Basically Dark Energy fills in the gaps in our knowledge, like some cosmological Polyfilla. Wink

Maybe one day, we'll have a theory of everything that doesn't need a God Dark Energy. Wink

Back to top

1523 people like this. The remaining 7,134,765,234 do not

IP Logged

Lord Herbert Gold Member Offline Posts: 34441 Gender:	Re: Spiritually Speaking... why is the universe Reply #32 - Jul 3^rd, 2013 at 9:21am muso wrote on Jul 3^rd, 2013 at 9:09am: Maybe one day, we'll have a theory of everything that doesn't need a God Dark Energy. Are you saying God's a Negro?
Back to top	IP Logged

Bobby.

Gold Member

Offline

Australian Politics

Posts: 107035
Melbourne
Gender: male

Re: Spiritually Speaking... why is the universe
Reply #33 - Jul 3^rd, 2013 at 9:33am

Muso,
Quote:

So you're an agnostic with respect to dark energy? It has its true believers and its deniers.

Basically Dark Energy fills in the gaps in our knowledge, like some cosmological Polyfilla. Wink

Maybe one day, we'll have a theory of everything that doesn't need a God Dark Energy. Wink

I am undecided about dark energy.
Apparently if time slows down over 13.7 billion years
then dark energy is an illusion.

What are your thoughts?

Back to top

IP Logged