Denk, Robert - The inventor of the tubeless radio used an unknown solid-state effect, which was never rediscovered.

Ephraimshay.com - Features transcriptions of diary entries that pertain to the making of his invention, the Shay locamotive engine. Page includes related resource links.

Gorrie's Fridge - An early pioneer in the invention of the artificial manufacture of ice.

Life of John Fitch - The inventor of the steam boat. Full text of thus 1857 publication by Thompson Westcott.

Martin, Horace G. - Created a semi-automatic key to help prevent telegrapher paralysis, created by the daily abuse of manipulating a manual Morse telegraph key. Includes biography and the spread of this invention across the United States.

Nobel, Alfred - Man Behind the Prizes - Information from the official Nobel Prize site.

structurae: Gustave Eiffel - Images, biography, works, references and links.