head-wave arrival time
11Sound localization — refers to a listener s ability to identify the location or origin of a detected sound in direction and distance. It may also refer to the methods in acoustical engineering to simulate the placement of an auditory cue in a virtual 3D space (see… …
12Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
132011 Tōhoku earthquake and tsunami — 2011 Miyagi earthquake redirects here. For the aftershock that occurred on 7 April, see April 2011 Miyagi earthquake. 2011 Tōhoku earthquake and tsunami 東日本大震災 An aerial view of damage in the Tōhoku region with black smoke coming from the Nippon… …
14Per Degaton — Art by George Pérez. Publication information Publisher DC Comics …
15History of Canterbury, New Zealand — Pre 1840 Maori Period= IntroductionProbably no more than 500 Māori were living in Canterbury when European settlement began in the 1840s. These Māori, part of the Ngāi Tahu tribe which occupied the South Island of New Zealand, were remnants of a… …
16Tsunami — For other uses, see Tsunami (disambiguation) …
17Electric Line — The term wireline usually refers to a cabling technology used by operators of oil and gas wells to lower equipment or measurement devices into the well for the purposes of well intervention and reservoir evaluation. Braided line can contain an… …
18Coriolis effect — For the psychophysical perception effect, see Coriolis effect (perception). Classical mechanics Newton s Second Law …
192003 in music — See also: 2003 in music (UK) and Category:Record labels established in 2003 List of years in music (Table) … 1993 • 1994 • 1995 • 1996 • 1997 • 1998 • 1999 •    2000 • 2001 • 2002 – 2003 – 2004 • 2005 • 2006 •    …
20Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London …
