An image of an inventor, captured with his own invention:
Daguerreotype of Louis Daguerre by Jean-Baptiste Sabatier-Blot (1844)
Louis Daguerre, a pioneer in photographic chemistry, would have been 224 years old today.
Not as though he would have lived anywhere near that long. His daguerreotypes involved curing silver iodine films with heated mercury vapor, a technique not for those squeamish about heavy metal poisoning. The daguerreotype became the first truly widespread method for permanently fixing a projected image.
The views expressed are those of the author(s) and are not necessarily those of Scientific American.
ABOUT THE AUTHOR(S)
Alex Wild is Curator of Entomology at the University of Texas at Austin, where he studies the evolutionary history of ants. In 2003 he founded a photography business as an aesthetic complement to his scientific work, and his natural history photographs appear in numerous museums, books and media outlets.