Jul 2, 2015
From Caricature: Wit and Humor of a Nation in Picture, Song and Story, 1909 Edition
seen from United States
seen from Singapore
seen from United States
seen from Singapore
seen from Germany
seen from Singapore
seen from Singapore
seen from Singapore
seen from China
seen from United States
seen from Germany
seen from United States
seen from China
seen from United States
seen from Canada
seen from United States
seen from Syria
seen from United Kingdom
seen from United States
seen from China
From Caricature: Wit and Humor of a Nation in Picture, Song and Story, 1909 Edition
Enjoy watching the electrons of metal containing salts move from the excited state to a lower energy state (thus emitting light with a specific energy and color)!