In 2010, the FDA approved Botox as a treatment for chronic migraine. Get more information about how and why it can help with this migraine subtype. In 2010, the FDA approved Botox as a treatment for chronic migraine.
In modern lithography, the image is made of a polymer coating applied to a flexible aluminum plate. The image can be printed directly from the plate (the orientation of the image is reversed), or it can be offset, by transferring the image onto a flexible sheet (rubber) for printing and publication.
Lithography was invented by Alois Senefelder in Germany in 1798 and, within twenty years, appeared in England and the United States.Almost immediately, attempts were made to print pictures in color. Multiple stones were used, one for each color, and the print went through the press as many times as there were stones.ithography was invented by Alois Senefelder in Germany in 1798 and, within twenty years, appeared in England and the United States.