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...Greenwood | first1=N. N. | last2=Earnshaw | first2=A. | title=Chemistry of the elements | publication-place=Boston, Mass. | date=1997 | isbn=0-585-37339-6 '''Tetraphenyllead''' is an [[organolead compound]] with the chemical formula {{chem2|(C6H5)4Pb}} or PbPh₄. It is a white sol ...

...tic substances from those which are magnetic. This technique is useful for the select few minerals which are [[ferromagnetism|ferromagnetic]] (iron-, nick ...ue to the magnets, magnetic particles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an [[ore]] concentrate) ...

...aties]] in history, [[Egyptian-Hittite peace treaty|Treaty of Kadesh]], at the [[Istanbul Archaeology Museum]]]] ...ain was often used as currency, local granaries would store and distribute the community's food supply.<ref>{{cite web|last=Gascoigne|first=Bamber|title=H ...