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surface-to-underwater — /serr fis tooh un deuhr waw teuhr, wot euhr/, adj. 1. (of a missile, message, etc.) traveling from the surface of the earth to a target underwater. adv. 2. from the surface of the earth to a target underwater … Useful english dictionary
Underwater habitat — Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24 hour day, such as working, resting, eating, attending to personal hygiene, and sleeping. In this… … Wikipedia
Underwater — is a term describing the realm below the surface of water where the water exists in a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water. A majority of the… … Wikipedia
Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… … Wikipedia
Underwater archaeology — is the study of past human life, behaviours and cultures using the physical remains found in salt or fresh water or buried beneath water logged sedimentMuckelroy, K., Maritime archaeology. Cambridge University Press 1978. ISBN 0 521 29348 0] . It … Wikipedia
Underwater photography — is the process of taking photographs while under water. It is usually done while scuba diving, but can be done while snorkeling or swimming.OverviewUnderwater imaging is considered an especially challenging area of photography, since it requires… … Wikipedia
Surface Marker Buoy — (standard) = A Surface Marker Buoy, SMB or simply a blob is an inflatable buoy used by SCUBA divers, with a line, to mark the diver s position to their surface, safety boat while the diver is underwater.SMBs are inflated on the surface before… … Wikipedia
Underwater rugby — (UWR) is a quite young sport that has its origin in the physical fitness training of German diving clubs and has little in common with “normal” Rugby except for the name. It is played in a pool with a depth of 3.5m to 5m and the goals (heavy… … Wikipedia
Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… … Wikipedia
Underwater welding — refers to a number of distinct welding processes that are performed underwater.cite book |author=Keats, DJ |year=2005 |title=Underwater Wet Welding A Welder s Mate |publisher=Speciality Welds Ltd |url=http://www.specialwelds.com |isbn=1 899293 99 … Wikipedia
