A View from the Back of the Envelope top

Power
J/s (Watt)
Scale of some things
Landmarks
Energy
Time
[ Scale | Other ]

Rough Draft
J/s (W)
...
10-6
10-5
10-4
10-3 CD player's laser
10-2 generic LED
10-1
100 1 Watt | cellular phone
101
102 lightbulb | dog1 resting | human
103 kW | athlete | person walking down stairs | dog1 hunting | horse | fireplace
104 car
105
106 MegaWatt
107
108 +nuclear reactor | +thunderstorm's electric generation
109 Hoover dam
1010
1011 hydropower
1012 electricity produced (US&world) | food into humans | burning wood&dung
1013 energy consumption (US&world) | ~ Earth interior heat to surface | solar radio
1014 into bio systems
1015 wind, waves, ocean currents
1016 surface IR -> space
1017 Earth to/from space (earthshine & incoming radiation) | surface & atmos I/O
1018
1019
1020
1021
1022
1023 white dwarf
1024
1025
1026
1027 Sun
1028 ~ X-ray pulsar
1029
1030
1031 Betelgeuse | Crab Nebula
1032
1033
1034 supernova ±2
1035
1036
1037 -Milky Way
1038
1039 ~ quasar
1040
1041
1042
...

A View from the Back of the Envelope
Comments encouraged. - Mitchell N Charity <mcharity@lcs.mit.edu>

Notes:
  dog1: 25kg domestic dog: 217kJ/h (60W) resting, 3MJ/h (830W) hunting (Nature 98 Jan 29)
  generic LED - RadioShack 276-041A, T-1 3/4, max 60mW, "normal" 30mW
  best athletes 400W for long periods[link broken]
  person walking down stairs - ~100kg decending 1m/s in 10m/s/s gravity
  cellular phone - mine is 0.6W

History:
  2003-Feb-04  Flagged a broken link.
  1998.Apr.21  Added dog.
  Long ago     Created.