Eli Whitney (December 8, 1765 – January 8, 1825) was an American inventor
best known for inventing the cotton gin (below). This machine, which separates
the seed from the cotton, was one of the key inventions of the Industrial Revolution  
and helped shape the economy of the South by making cotton a profitable crop.

 
A model of Eli Whitney’s cotton gin

This is the actual patent (#72X) Eli Whitney received for his cotton gin

Drawing of an early full scale cotton gin

Albert Einstein was a German-born theoretical physicist who discovered the theory
of general relativity, effecting a revolution in physics. He received the Nobel Prize in Physics in 1921. His great intelligence and originality have made the word "Einstein" synonymous with genius. He died in 1955 at the age of 76. 

Pictured above is an airship under construction during 1909 – 1910 by the Preble-Rekar Airship company of Portland, Oregon. The rigid dirigible was to be 250 feet long and 24 feet in diameter. It was never completed. 

TRENTON, New Jersey (AP) — Legendary jazz drummer Joe Morello, whose
virtuosity and command of odd time signatures made him an integral part of
the Dave Brubeck Quartet on such classic recordings as "Take Five" and
"Blue Rondo a la Turk," has died at age 82. Family members said Morello
died Saturday at his home in northern New Jersey. A cause of death was not 
immediately available. Brubeck said the loss of his friend "came as a complete 
shock to me."