peak-to-average meter
41Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
42Thermodynamic temperature — is the absolute measure of temperature and is one of the principal parameters of thermodynamics. Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperature: its null or zero point …
43Glossary of fuel cell terms — The Glossary of fuel cell terms lists the definitions of many terms used within the fuel cell industry. The terms in this glossary may be used by fuel cell industry associations, in education material and fuel cell codes and standards to name but …
44List of energy abbreviations — This is a list of abbreviations found in the context of energy issues. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y …
45JERUSALEM — The entry is arranged according to the following outline: history name protohistory the bronze age david and first temple period second temple period the roman period byzantine jerusalem arab period crusader period mamluk period …
46Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …
47Watt — For other uses, see Watt (disambiguation). Kilowatt redirects here. For the community in Kern County, California, see Kilowatt, California. KW redirects here. For other uses, see KW (disambiguation). The watt (pronounced /ˈwɒt/ wot; symbol: W) is …
48Crater Lake — For other uses, see Crater Lake (disambiguation). Crater Lake Aerial view; note Wizard Island against the western rim …
49Congestion pricing — Typical traffic congestion in an urban freeway. Shown here I 80 Eastshore Freeway, Berkeley, United States …
50Loudness war — Different releases of Michael Jackson s song Black or White show increasing loudness over time. The loudness war or loudness race is a pejorative term for the apparent competition to digitally master and release recordings with increasing… …
