No ale pozor, nebyl to hloupý chlapec. Byl z Prahy!

Jára Cimrman 1869-1966 approx. Bohemian philosopher, adventurer and inventor.
Jára Cimrman invented the electric bulb assisted by local inventor Joseph Swan. Thomas Edison later copied the idea and patented it his name.
Cimrman is also noted for donating Jesmond Dene to the people of Newcastle after winning it from Lord Armstrong in a game of cards.