1) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.

2) DNA, the building block of life, can store incredible amounts of data. It is estimated that one gram of DNA could potentially store about 215 petabytes of data.

3) Lightning strikes the Earth about 8 million times a day.

4) The strongest natural material known to man is spider silk. It is stronger than steel and more flexible than nylon.