Best Sellers

The Heritage Periodic Table

Periodic Table with 83 element samples: 
From Etsy store ProtoshopLLC: BUY NOW: Heritage Periodic Table

See also: The Collector's Edition with 85 samples

Note: this site contains affiliate links for which I may be compensated

Please note: there are fradulent versions of this with only pictures embedded in the acyrlic being sold on facebook. The link above is the only place to get the actual version. 

The Heritage Periodic Table Display: a comprehensive collection of the chemical elements that can fit in the hand. Embedded in acrylic are actual samples of 83 of the 118 elements- including pure bubbles of the gaseous elements- represented by 75 high purity samples and 7 compounds. 2019 marks the 150th anniversary of the world changing periodic system of Dmitri Mendeleev (published in 1869). This table and collection is the creative work of Tim and Cory Marriott of Engineered Labs Protoshop LLC 

The Magic Octagon Coin

Get this new amazing coin here:

From Shire Post Mint: BUY NOW: Magic Octagon Coin

Note: this site contains affiliate links for which I may be compensated

“Magic Octagon” Challenge: introducing a beautiful copper coin version of this puzzle of successive rotations. Which way will the light arrow point after left and right rotations of the dark arrow? No trickery here- just the math of geometry, symmetry, rotations, and reflections and how our intuitions often fail us upon first attempts. Swipe twice for second challenge. In collaboration with my friends at @shirepostmint