In September of 1915, Napoleon Hill started his unaccredited George Washington Institute, to teach the “principles of success” and self-confidence.

Some students of the George Washington Institute would accuse Hill’s school of fraud, and it too had a very short life.

• Allows Rook and Bishop to slide and dominate
• Weak squares on 4th, 5th Or 6th rank allow a knight to outpost
• Weak squares can be turned into artificial support point.
• Chess is a team game, placing a piece on a square where it doesn't work with the rest of its army is ...

In 1835, inventors Joseph Henry and Edward Davey independently demonstrated electromagnetic relay, where a weak electrical signal can be amplified and transmitted across long distances. Cooke and Wheatstone invented the telegraph shortly after.

A few years later, Samuel Morse developed a v...