A little article in the BBC recently about the 1p coin states that approximately 6,300,000,000 of the little buggers are MIA.
So far so good, but look at this for a reply from a concerned reader. [quote]This is a staggering number of coins to go missing. A 1p coin weighs 3.5g so the missing coins weigh in excess of 22 metric tonnes and would occupy a volume of approximately 2600 cubic meters if stacked in the most efficient way. This is equivalent to a pile 2.6 km long measuring 1 metre by 1 metre. Working on the assumption that it takes about 10 seconds to stack ten 1p coins (sadly I have tried this) it would take one person more than 200 years of non-stop work to build this pile - that is, of course, if they could find them! [/quote]
This person should join forumosa!