The periodic table usually appears as colored rectangles containing symbols and atomic numbers. Theodore Gray looked at that and apparently decided the missing feature was several thousand actual objects.
Visit the Photographic Periodic Table
Periodictable.com is built around photographs of real element samples and things made from or associated with those elements. Click tungsten and you can find metal samples and manufactured objects. Click germanium and there are crystals, ore, diodes, supplements, and a boule. Zirconium leads to crucibles, flash bulbs, abrasives, and other objects.
Theodore Gray’s own collection alone is indexed at more than a thousand items.
Chemistry gets physical again
That matters because chemistry education can become abstract very quickly. “Palladium” is a box on a chart until you see it in a catalytic converter. “Phosphorus” is a symbol until the collection confronts you with actual industrial, mineral, historical, and sometimes unsettling uses.
The site also includes rotating 360-degree views for many specimens and more detailed descriptions than Gray could fit into his book The Elements. In fact, he describes the book as growing out of the photographs he had already been collecting on the website.
That is a particularly old-web path to publishing: build the weirdly specific website first, discover that the material has become a substantial reference, then turn part of it into a book.
The collection is useful to students, teachers, collectors, artists, and anyone who has stared at a periodic table and wondered what these substances look like when they are not printed in a textbook.
It is also a model for web publishing. A database becomes memorable when the records are attached to physical things, good photographs, and specific stories.
Periodictable.com is one of the sites pulled from CacheRat’s larger Ancient Web research list.
Browse the 1,967 Ancient Web Domains research list
There are cleaner periodic tables online. There are faster ones. Very few will show you a radioactive consumer product, a giant drill bit, a camera flash, and a semiconductor crystal before dinner.