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The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be described as a human activity – intentional, purposive, conscious and subjectively meaningful sequence of actions. Underwater diving is practiced as part of an occupation, or for recreation, where the ...
In astronomy, a deep field is an image of a portion of the sky taken with a very long exposure time, in order to detect and study faint objects. The depth of the field refers to the apparent magnitude or the flux of the faintest objects that can be detected in the image. [ 2 ]
Deep diving is underwater diving to a depth beyond the norm accepted by the associated community. In some cases this is a prescribed limit established by an authority, while in others it is associated with a level of certification or training, and it may vary depending on whether the diving is recreational , technical or commercial .
A glossary is a list of specialised or technical words with their meanings. Listed below are many glossaries supporting a wide range of subjects. See also Category:Wikipedia glossaries. Also try our sister project Wiktionary.
For example, a medical statement or examination for fitness, pre-dive site assessment and briefing, safety drills, thermal protection, equipment redundancy, alternative air source, buddy checks, buddy or team diving procedures, dive planning, use of dive computers to monitor and record the dive profile and decompression status, underwater hand ...
A common example is checking buoyancy control with a new diving suit, buoyancy compensator, cylinder configuration, or weighting system, or an unfamiliar model of rebreather. Buoyancy testing is done with the cylinders nearly empty, to ensure that the diver can maintain neutral buoyancy at the end of a dive during decompression, even if ...
For example, an image shifted toward the "warm" part of the spectrum can create background water which appears gray, purple or pink, and looks unnatural. There have been some successful experiments using filters combined with the raw image format function on some high-end digital cameras, allowing more detailed manipulation in the digital ...
Abbreviation for Wikipedia:List of bad article ideas. Bad faith nomination A bad faith nomination is the nomination of a page, or more pages (usually for deletion at § AFD) for disingenuous reasons such as making a point or § Vandalism. Balancing the Main Page