Antoine Pevsner
François Rude
Pieter de Hooch
Earth Hour
Tea
Static Electricity
Aurora
1,3-Butadiene
Airy Function
Tyndall Effect
Cadmium
Venn Diagram
Penicillin
Cryptography
War and Peace
Peirce Quincuncial Projection
Open Hearth Furnace
Fermat's Last Theorem
Technetium
Egg (food)