The first kind of PENCIL was a bunch of GRAPHITE sticks held together by string. Then someone decided it would be better to push the graphite into the inside of a hollow wooden stick.
JOSEPH RECHENDORFER was the first person to think of putting a piece of rubber onto the top of a pencil which makes it real easy to rub out mistakes.
Did you know that the average lead pencil can draw a line that is almost 35 miles long or you can write almost 50,000 words in English with just one pencil? Amazing fact! Now imagine an eraser that could match it !!!
Tremendous erosion at the base of Niagara Falls (USA) undermines the shale cliffs and as a result the falls have receded approximately 7 miles over the last 10,000 years.
The largest cave in the world (the Sarawak Chamber in Malaysia) is 2,300 feet (701 meters) long, 980 feet (299 meters) wide, and more than 230 feet (70 meters) high.
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