Tongue out, hair a mess, mischievous look: the photo of the famous Albert Einstein was taken ... And so it was that Einstein's picture made its way around the globe, becoming a veritable symbol of pop ...

Albert Einstein is one of the most recognized and well-known scientists of the century. His theories solved centuries-old problems in physics and rocked even non-physicists' view of the world.

Albert Einstein, one of the greatest minds of the 20th century, forever changed the landscape of science by introducing revolutionary concepts that shook our understanding of the physical world.