Internet Database of Periodic Tables
There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
Use the buttons below to select from the 1000+ Periodic Tables in the database:
Newton's Lapis Philosophicus cum suis rotis elementaribus
In 1936 a collection of Newton's papers, amazingly regarded as of "no scientific value" when offered to Cambridge university some fifty years earlier, was purchased at Sotheby's by the respected economist and Newton scholar John Maynard Keynes. Originally left in a stack by Newton when he left his post as the director of the London mint in 1696, these documents had somehow fortuitously escaped the burning of Newton's personal writings arranged after his death, and were discovered two centuries later. Included was a handwritten manuscript entitled Lapis Philosophicus cum suis rotis elementaribus: "The philosophical stone elements with its wheels", Google Translate.
Notice how the design below also features in the Ripley Scroll, formulated in the mid-1400s. Newton is known to be influenced by this work:
© Mark R. Leach 1999-
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
This free, open access web book is an ongoing project and your input is appreciated.