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Construction is a general term meaning the art and science of forming objects, systems, or organizations. [ 1 ] It comes from the Latin word constructio (from com- "together" and struere "to pile up") and Old French construction. [ 2 ] To 'construct' is a verb: the act of building, and the noun is construction: how something is built or the ...
The Astra brand logo. Astra 19.2°E is the name for the group of Astra communications satellites co-located at the 19.2°East orbital position in the Clarke Belt that are owned and operated by SES based in Betzdorf, Luxembourg . Astra 19.2°E used to be commonly known as Astra 1, as it was the first orbital position used by Astra and the craft ...
For example, 15-crown-5 has a high affinity for sodium because the cavity size of 15-crown-5 is 1.7–2.2 Å, which is enough to fit the sodium ion (1.9 Å). [ 32 ] [ 33 ] Cryptands, like crown ethers and other ionophores , also have a high affinity for the sodium ion; derivatives of the alkalide Na − are obtainable [ 34 ] by the addition of ...
Rank Name Place Height Floors Year Location 1 South Tower: Brussels: 150 m (492 ft) 38 1967 2 Finance Tower: Brussels 145 m (476 ft) 36 1982 3 UP-Site
The Shard, [ a ] also referred to as the Shard London Bridge[ 12 ] and formerly London Bridge Tower, [ 13 ] is a pyramid-shaped 72-storey mixed-use development supertall skyscraper, designed by the Italian architect Renzo Piano, in Bermondsey, London, that forms part of The Shard Quarter development.
Peanut flower. The peanut is an annual herbaceous plant growing 30 to 50 cm (12 to 20 in) tall. [ 19] As a legume, it belongs to the botanical family Fabaceae, also known as Leguminosae, and commonly known as the legume, bean, or pea family. [ 1]
Greece, [ a] officially the Hellenic Republic, [ b] is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, Greece shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to the east. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, and ...
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .