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Pattern is the spatial arrangement of objects in the landscape. The objects may be arranged randomly or systematically. They can be natural, as with a drainage pattern of a river, or man-made, as with the squares formed from the United States Public Land Survey System. Typical adjectives used in describing pattern are: random, systematic ...
These include infrasound microbarographs (acoustic pressure sensors) that detect very low-frequency sound waves in the atmosphere produced by natural and man-made events. Closely related to the microbarographs, but detecting pressure waves in water, are hydro-acoustic sensors, both underwater microphones and specialized seismic sensors that ...
An established point from which the position of an object can be referenced; made by cardinal/range or digital format. Bump/Bump-up Start temporary increase of flight altitude to set the aircraft to a favorable glide path to the target on the attack run. Burn glint Used to provide illumination. Buster Directive call to fly at maximum continuous ...
Nature has always been a powerful source of inspiration, with inventors diving into the world around them for new ideas. From the anatomy of animals to the behavior of plants, some of our most ...
Chronological dating, or simply dating, is the process of attributing to an object or event a date in the past, allowing such object or event to be located in a previously established chronology. This usually requires what is commonly known as a "dating method".
Aitken, M.J., Thermoluminescence Dating, Academic Press, London (1985) – Standard text for introduction to the field. Quite complete and rather technical, but well written and well organized. There is a second edition. Aitken, M.J., Introduction to Optical Dating, Oxford University Press (1998) – Good introduction to the field. Keizars, K.Z ...
The development of radiocarbon dating has had a profound impact on archaeology – often described as the "radiocarbon revolution". [110] In the words of anthropologist R. E. Taylor, "14 C data made a world prehistory possible by contributing a time scale that transcends local, regional and continental boundaries". It provides more accurate ...
Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty of accuracy.