the Periodic Table of Elements is one the most
well know icons in science

its creation, in 1869, by Russian Chemist
Dmitri Mendeleev was one of science’s greatest
achievements; laying the groundwork for
20th century chemistry and physics

the video below gives a sense of the inspiration,
experimentation and breakthrough experienced by
Mendeleev in 1869

it’s the archetypal story of the scientist on the
brink of a world-changing discovery

the above video is a brief excerpt from
Stephen Hawking’s Universe