Trace Metals. Metals, including nickel, iron, and vanadium are often found in crude oils in small quantities and are removed during the refining process. Burning heavy fuel oils in refinery furnaces and boilers can leave deposits of vanadium oxide and nickel oxide in furnace boxes, ducts, and tubes.
Chandra, meet Sultan â Chandra Bahadur Dangi, at 21Â½ inches the shortest adult ever verified by Guinness World Records, poses Thursday in London with the world's tallest man, Sultan Kosen, who stands 8 feet 3 inches tall. Chandra, meet Sultan â Dangi, 74, is a weaver in a remote village of Nepal. He weighs just 32 pounds.
Malawi 1.660 m (5 ft 5 1â2 in) 1.550 m (5 ft 1 in). South Africa 1.690 m (5 ft 6 1â2 in) 1.590 m (5 ft 2 1â2 in). Nigerian men came out to be the shortest in this list. I find this a little strange-obviously there are issues that undermine the data (see http://en.wikipedia.org/wiki/Average_height).And yes, I know it's Wikipedia. came across this interesting piece in wikipedia about the average human height per country in the world, and did a tally of the reported heights from Some African countries. See below: