8 1 milliMilli (symbol m is a SI prefix in the SI system of units denoting a factor of 10-3, or 1/1,000. Adopted in 1795, the prefix comes from the Latin mille meaning one thousand (the plural is milia . See also SI SI prefixes.watt

(10^-3 watts)

• 5 mW - laser in a CD-ROMThe CD-ROM (an abbreviation for " Compact Disc Read-Only Memory" ( ROM) ) is a non-volatile optical data storage medium using the same physical format as audio compact discs, readable by a computer with a CD-ROM drive. A CD-ROM is a flat, plastic disc wit drive [2]
• 5-10 mW - laser in a DVD-ROMDVD-ROM is a non-volatile optical data storage medium similar to CD-ROM. Like CD-ROMs, they use a similar technology of microscopic pits on a reflective surface that are read by a laser beam. The difference is that DVD-ROM allows information to be stored drive
• 100 mW - laser in a CD-R drive

9 1 watt

• 20-40 W -- approximate power consumption of the human brain
• 30 W -- the power of the typical household tube light
• 60 W -- the power of the typical household light bulb
• 100 W -- approximate average power used by the human body
• 290 W -- approximately 1000 BTU/hour
• 745.7 W -- 1 horsepower

10 1 kilowatt

(10³ watts)

• 1.36 kW -- power received from the Sun at the Earth's orbit by one square metre
• up to 2 kW -- approximate short time power output of sprinting professional cyclists
• 1 kW to 2 kW -- heat output of a domestic electric kettle.
• 2.2 kW -- per capita average power use of the world in 2001
• 11.4 kW -- per capita average power use in the U.S. in 2001
• 40 kW to 200 kW -- approximate range of power output of typical automobiles

11 1 megawatt

(10⁶ watts)

• 10.3 MW -- Electrical power output of Togo
• 190 MW -- peak power output of a Nimitz class aircraft carrier
• 959 MW -- average electrical power consumption of Zimbabwe in 1998

12 1 gigawatt

(10⁹ watts)

• 2.074 GW - peak power generation of Hoover Dam
• 3 GW - approximate peak power generation of the world's largest nuclear reactor
• 12.6 GW -- electrical power generation of the Itaipu Dam, the world's largest hydroelectric power plant
• 12.7 GW -- average electrical power consumption of Norway in 1998
• 18.2 GW -- electrical power generation of the Three Gorges Dam in China when complete
• 424.3 GW -- average electrical power consumption of the U.S. in 2001

13 1 terawatt

(10¹² watts)

• 1.7 TW -- average electrical power consumption of the world in 2001
• 3.327 TW -- average total power consumption of the U.S. in 2001
• 13.5 TW -- average total power consumption of the world in 2001

14 1 petawatt

(10¹⁵ watts)

• 1.25 × 10¹⁵ watts -- world's most powerful laser (claimed on 1996-5-23 by Lawrence Livermore Laboratory).
• 4 × 10¹⁵ watts -- estimated total heat flux transported by Earth's atmosphere and oceans away from the equator towards the poles.
• 1.75 × 10¹⁷ W -- total power received by the Earth from the Sun

15 1 exawatt

(10¹⁸ watts)

16 1 zettawatt

(10²¹ watts)

• 1.35 × 10²³W - Approximate luminosity of Wolf 359

17 1 yottawatt

(10²⁴ watts)

• 3.86×10²⁶W - Luminosity of the Sun

18 Higher orders of magnitude

• 3.31 × 10³¹W - Approximate luminosity of Hadar
• 1.23 × 10³²W - Approximate luminosity of Deneb
• 5 × 10³⁶W - Approximate luminosity of the Milky way galaxy.
• 1 × 10⁴⁵W - Approximate luminosity of a Gamma ray burster

19 See also

SI, SI prefixes, SI base units, units, power, orders of magnitude, conversion of units

20 External link

• Conversion of power units
• Extended system of units from 10^-63 to 10⁶³ (not ratified by CGPM )

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