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For at least the last 100 years, sea level has been rising at an average rate of about 1.8 millimetres (0.071 in) per year. [45] Most of this rise can be attributed to an increase in the temperature of the sea due to climate change, and the resulting slight thermal expansion of the upper 500 metres (1,600 ft) of water.
During the Last Glacial Maximum, [5] (between about 26,000 and 20,000 years BP) ice sheets more than 3,000 m (9,800 ft) thick scoured the landscape of Ireland. By 24,000 years ago they extended beyond the southern coast of Ireland; but by 16,000 years ago the glaciers had retreated so that only an ice bridge remained between Ireland and Scotland.
Naturally occurring zinc (30 Zn) is composed of the 5 stable isotopes 64 Zn, 66 Zn, 67 Zn, 68 Zn, and 70 Zn with 64 Zn being the most abundant (48.6% natural abundance).Twenty-eight radioisotopes have been characterised with the most stable being 65 Zn with a half-life of 244.26 days, and then 72 Zn with a half-life of 46.5 hours.
1/2 + 1/4 + 1/8 + 1/16 + ⋯. First six summands drawn as portions of a square. The geometric series on the real line. In mathematics, the infinite series 1 2 + 1 4 + 1 8 + 1 16 + ··· is an elementary example of a geometric series that converges absolutely. The sum of the series is 1. In summation notation ...
1. The tallest mast on a ship [1] with more than one mast, especially the tallest mast on a full-rigged ship. 2. On a ship with more than one mast, the second mast from the bow. mainmast head The top of a sailing vessel's mainmast. mainmastman A sailor assigned to the mainmast. mains The main brails on the mainsail. [2] mainsheet
Fly fishing tackle comprises the fishing tackle or equipment typically used by fly anglers. Fly fishing tackle includes: Artificial flies - ultralight fishing lure used to imitate flying insects and small crustaceans. Fly rods - a specialized type of light fishing rod designed to cast fly line and artificial flies.
Capsizing (but not necessarily turtling) is an inherent part of dinghy sailing. It is not a question of "if" but a question of "when". [1] For those who do not want the experience, a keelboat monohull has physics on its side. [1] [2] But even yachts can capsize and turtle in extraordinary conditions, so design considerations are important. [2]
Khujand. Alexandria the Furthest, Khüjand, Khodzhent, Khudchand, Chodjend, Ispisar, Leninabad, Leninobod. Alexandria on the Indus. at the confluence of the Indus and Chenab rivers, Pakistan, 13 km from modern Uch. abandoned. Uch, Uch Sharif, Alexandria at the Head of the Punjab. Alexandria on the Oxus.