Monday, May 21st, 2007 19,321 Read This!!!
Can you imagine yourself working on complicated mathematical equations in calculus or trigonometry without using or even encountering the number zero? Do you think you can perform messy and complex math problems in algebra or even elementary arithmetic operations without facing the number zero at one point or another?
It would ...
4 Comments »
Thursday, May 10th, 2007 67,502 Read This!!!
TYPEWRITER
The invention of the [[typewriter]] is not credited to any particular person. Many persons contributed in the development of the typewriter. A patent for a machine similar to the typewriter was taken by Heather Mill in Britain in 1714. Pellegrino Turri, inventor of carbon paper, was one of the early ...
7 Comments »