The invention of time eraser
Source:  Date:2014-11-04 11:36:41 Views:392

In 1770, Engineer Edward Naina fromUnited Kingdominvented eraser after 200 years since pencil has been invented. Before this,People had to use bread to erase the script to amend the words was written bypencil. Edward had found the natural rubber can deal with the pencil leadchirography, and this discover caused a large sensation for giving people bigconvenience. But the natural rubber was decay as easy as break and also droppedscraps easily. In 1839, vulcanized rubber was come out and conquered thenatural rubber issue, it settled the eraser status. Till in 1858, Harmen Lipmanmade up eraser and pencil together into 1 piece, this two-in-one design hasbeen using till today.