Cybersecurity refers to the preventative techniques used to protect the integrity of networks, programs and data from attack, damage, or unauthorized access.
Pencils were invented in 1795 by a French scientist named Nicolas-Jacques Conte. He used a mixture of graphite, clay and water baked in a kiln to create the lead of the pencil. He then housed this mixture in a wooden frame for writing. Continue Reading.
But the history of the pencil, like that of many seminal innovations, has a dark side: The purest deposits of lump graphite were found in Borrowdale near Keswick [England] in the Lake District in 1564 and spawned quite a smuggling industry and associated black economy in the area.