- Source: Graphical timeline from Big Bang to Heat Death
This is the timeline of the Universe from Big Bang to Heat Death scenario. The different eras of the universe are shown. The heat death will occur in around 1.7×10106 years, if protons decay.
Timelines
If protons decay:
If protons do not decay:
Usually the logarithmic scale is used for such timelines but it compresses the most interesting Stelliferous Era too much as this example shows. Therefore, a double-logarithmic scale s (s*100 in the graphics) is used instead. The minimum of it is only 1, not 0 as needed, and the negative outputs for inputs smaller than 10 are useless. Therefore, the time from 0.1 to 10 years is collapsed to a single point 0, but that does not matter in this case because nothing special happens in the history of the universe during that time.
s
=
{
log
10
log
10
y
e
a
r
if
y
e
a
r
>
10
, corresponding to
y
e
a
r
=
10
10
s
0
if
0.1
≤
y
e
a
r
≤
10
−
log
10
(
−
log
10
y
e
a
r
)
if
y
e
a
r
<
0.1
, corresponding to
y
e
a
r
=
10
−
10
−
s
{\displaystyle s={\begin{cases}\log _{10}\log _{10}year&{\mbox{if }}year>10{\mbox{ , corresponding to }}year=10^{10^{s}}\\0&{\mbox{if }}0.1\leq year\leq 10\\-\log _{10}(-\log _{10}year)&{\mbox{if }}year<0.1{\mbox{ , corresponding to }}year=10^{-10^{-s}}\end{cases}}}
The seconds in the timescale have been converted to years by
s
e
c
o
n
d
/
31557600
{\displaystyle second/31557600}
using the Julian year.
See also
References
Fred C. Adams; Greg Laughlin (19 June 2000). The Five Ages of the Universe: Inside the Physics of Eternity. Simon and Schuster. ISBN 978-0-684-86576-8.
Kata Kunci Pencarian:
- Graphical timeline from Big Bang to Heat Death
- Graphical timeline of the Big Bang
- Graphical timeline of the Stelliferous Era
- Heat death paradox
- Logarithmic timeline
- Heat death of the universe
- Timeline of the far future
- Chronology of the universe
- Timeline of environmental history
- Future of an expanding universe
