Page 19 - Science at the nanoscale

RPS: PSP0007 - Science-at-Nanoscale
15:10
June 9, 2009
now
140 m.
about
lightyears
is
m.
centre
12 × 10 12
is
about
China
42 km×23 km.
246 Em.
galactic
4.3
is
m.
of
about
Giza
about
Wall
1.4 × 10 9
∼
the
of
light-years
is
is
Great
to
Pyramid
about
system
star
Sun
about
nearest
The
=
the
solar
is
prefix.
Great
26,000
is
of
from
Singapore
Sun
length
our
our
the
distance
and
at
of
to
of
m.
estimated
of
Diametre
total
Distance
∼40 Pm.
size
symbols
Height
5 × 10 6
of
Size
The
The
The
units,
system
1,000,000,000,000,000,000
Metric
1,000,000,000,000,000
1,000,000,000,000
1,000,000,000
1.2
Table
1,000,000
1,000
Unit Scale Size this with Objects Representative of length a has galaxies of network a Wall, Great The 1,000,000,000,000,000,000,000,000 1.8 Ym. of width a and 4.7 Ym 200,000 is Galaxy Andromeda the of diametre Mean 1,000,000,000,000,000,000,000 Zm. 2 × 2 about is That lightyears. 1.3.
100
Unit
Sci. 10 24 10 21 10 18 10 15 10 12 10 9 10 6 10 3 10 2
Abbrev. Ym Zm Em Pm Tm Gm Mm km hm
Name Yotta- Zetta- Exa- Peta- Tera- Giga- Mega- kilo- hecto-