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.
Background. Little is known about the life of John Lee Love, the inventor of the portable pencil sharpener. Love worked as a carpenter in the community of Fall River, Massachusetts. He applied for a patent for a portable pencil sharpener in 1897.