Guys and gals
A teaser for you. Take a chess board and place a grain of rice on the first square. Put two grains on the second square, four on the 3rd, eight on the 4th and so on.
It sounds simple enough but you won’t be able to finish the chess board – there isn’t enough rice on the planet to do that! You don't believe me?
Some facts:
By the time you get to the 64th square you’ll be looking for about 18,440,000,000,000,000,000 grains of rice for that square.
Taking an average chess board square size and neatly stacking up the grains, that column will be 48,500,000,000,000 km high. That’s 41 times the distance from the Sun to Pluto.
It would take light over 9 days to travel from one end to the other.
The weight would be 461,000,000,000 tons.
It would take over 650 years to produce enough rice based on 2005 world production. To complete the board would take twice as long.
Yes it's a sign of a delinquent mind to have worked out that lot but that's what I did.
Any more useless facts welcome here - post what you want.
cheers
Albi