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Dec
26
revised What is the current radius of cosmological event horizon?
added 12 characters in body; edited title
Dec
26
comment What is the current radius of cosmological event horizon?
@Johannes : I am not looking for changes of cosmological event horizon in time, but that right now given that $H_0$ is constant in space, then what is the value of cosmological event horizon right now?
Dec
26
revised What is the current radius of cosmological event horizon?
Explained that looking for cosmological event horizon at this point of time only
Dec
26
comment What is the current radius of cosmological event horizon?
@LuboŇ°Motl : because of the first line of the answer , I wasn't sure if my question was implying the contrary, I wasn't questioning Johannes but confirming that my question is not implying the contrary. the result I ended up with was $13\times10^{10}$ it is 3 times the answer of from alpha. My question is at this point of time, how far is the cosmological event horizon? If it was possible to take a snap shot of universe, with given $H_0$ at this point of time, since it is not dependent on time.
Dec
26
comment What is the current radius of cosmological event horizon?
Is The Hubble length suppose to coincide with the radius of the observable universe? or not? Sorry I am confused, I don't know why Hubble length and radius of the observable universe relate to each other.
Dec
26
comment Will a magnet loose too much strength it cut with a hacksaw?
If heat is a concern, then liquid nitrogen will make it a snap!
Dec
26
asked What is the current radius of cosmological event horizon?
Dec
14
awarded  Yearling
Nov
18
reviewed Approve suggested edit on What is the name of the principle saying it is meaningless to talk/ask questions that can not be measured/tested?
Oct
12
awarded  Popular Question
Sep
21
awarded  Custodian
Jun
25
comment Variations of double slit experiment with their results to look up
Indeed that is type of thing that I am intrested, time to spice up the double slit experiment!
Jun
23
asked Variations of double slit experiment with their results to look up
Jun
16
accepted Will acceleration rate of expansion of space become faster than speed of light?
Jun
13
asked Will acceleration rate of expansion of space become faster than speed of light?
May
13
accepted Gabriele Veneziano, strong nuclear force and beta-function
May
12
asked Gabriele Veneziano, strong nuclear force and beta-function
Mar
18
comment From where (in space-time) does Hawking radiation originate?
@Dilaton : I thought the radiation was due to the uncertainty principle.
Mar
18
comment From where (in space-time) does Hawking radiation originate?
@Dilaton : yes, but is it an exact distance or has some level indeterminency? in other words could a photon inside finds itself (if it is sufficeintly close enough to some region we would consider as the event horizon) all of a sudden outside?
Mar
18
comment From where (in space-time) does Hawking radiation originate?
Where exactly is the event horizon?