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People exposed to white phosphorus can suffer severe and sometimes deadly bone-deep burns. It can cause organs to shut down, and burns on just 10% of the body can be fatal, HRW said.
While the Roman polity survived in the East, its ongoing evolution led historians by the 16th century to recognize use of the term Byzantine Empire to distinguish it from the unified Roman Empire (notwithstanding the period of the Tetrarchy). The Eastern Roman Empire reached its greatest extent in the 6th century under the emperor Justinian.
By the 5th century, Christianity was the dominant religion in the Middle East, with other faiths (gradually including heretical Christian sects) being actively repressed. The Middle East's ties to the city of Rome were gradually severed as the Empire split into East and West, with the Middle East tied to the new Roman capital of Constantinople.
The empire began to crumble in the 3rd century. It recovered briefly, only to begin its decline again. By 435 AD it had lost southern France and all of Iberia to the Visigoths, and much of North Africa to the Vandals, thus ending its monopoly over the Mediterranean coast. Despite this, the Roman Empire did not collapse until May 29, 1453 AD.
The developing sciences of chemistry and Paleontology, combined with the discovery of coprolites in commercial quantities in East Anglia, led Fisons and Packard to develop sulfuric acid and fertilizer plants at Bramford, and Snape, Suffolk in the 1850s to create superphosphates, which were shipped around the world from the port at Ipswich. By ...
Its use began in the Middle East and the Balkans around 3000 BC. Tin is a relatively rare element in the Earth's crust, with about two parts per million (ppm), compared to iron with 50,000 ppm, copper with 70 ppm, lead with 16 ppm, arsenic with 5 ppm, silver with 0.1 ppm, and gold with 0.005 ppm. [1]
At its peak between the 16th and 18th centuries, the Ottoman Empire was able to use the strategic importance of the Bosporus to wrest control of the entire Black Sea area, which they regarded as an "Ottoman lake", from which Russian warships were prohibited. [29] Subsequently, several international treaties have governed access to the strait.
He was the first to use phosphorus to ignite sulfur-tipped wooden splints, forerunners of modern matches, [17] and also improved the process by using sand in the reaction: 4 NaPO 3 + 2 SiO 2 + 10 C → 2 Na 2 SiO 3 + 10 CO + P 4. Boyle's assistant Ambrose Godfrey-Hanckwitz later made a business of the manufacture of phosphorus.