Levels
from Micro- to Macrocosm
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(This
division into levels may naturally
be rather unclear or arbitrary in
some respects.) Gamow
pointed out that the scales of time
and distances in Universe were about
the same, circa 41 ten-powers. Time:
Counting from the time for light
to pass a proton, …10-23
s to estimated age of Universe,
circa 1017,6
s, gives about 40-41 ten-powers.
The middle is about 10-3
s, the time for a neutron to disintegrate
in s and e outside an atomic
nucleus. Distance:
From diameter of an H-atom, ~10-15
m, to the estimated one of Universe,
circa 1026
m, gave also about 41 ten-powers.
The middle thus about 105,5
m (circa 316 km, a little distance
on our planet). Quotient
between these middle values gives
approximately the velocity of light,
perhaps always the middle in an
expanding Universe? (The
lower borders may of course be regarded
as arbitrary in subatomic physics.)
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© Åsa Wohlin
Free to distribute if the source is mentioned.
Texts are mostly extractions from a booklet series, made publicly
available in year 2000
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