Sand. 1 Cubic Yard of Sand can weigh between 2,600 to 3,000 lbs. or up to one and a half tons approximately. 1 Ton of Sand will cover between 80 to 100 square feet at a 2 inch depth approximately.
Tellurium was discovered by Franz Joseph Muller von Reichstein in 1783 at Romania. Origin of name: from the Latin word  tellus  meaning  earth . Tellurium was discovered in gold ores by Franz Joseph MÎ´ller von Reichenstein, the chief inspector of mines in Trannsylvania in 1782.However tellurium was named by M. Klaproth, who isolated it in 1798, after he continued MÎ´ller von Reichenstein's work.ellurium was discovered in gold ores by Franz Joseph MÎ´ller von Reichenstein, the chief inspector of mines in Trannsylvania in 1782. However tellurium was named by M. Klaproth, who isolated it in 1798, after he continued MÎ´ller von Reichenstein's work.
ONE theory is that the name was taken from George (Geordie) Stephenson, the mining and railway engineer who hailed from the north-east. Another is that it derives from a term of abuse coined by the Scottish Jacobites in the 1745 Rebellion because of the defence of the town of Newcastle against them by supporters of King George (Geordie) II. The second theory is more plausible because the term Geordie is properly used for natives of Newcastle only. Others originating from the north-east are Tynesiders (from the towns along the Tyne, from Blaydon and Newburn downstream), Northumbrians, Durhamites (Dunhelmians if you are posh) or Makems (from Sunderland).