Equations That Changed the World 18 oz Steel Bottle Product Type_Pint Glass Pack contains 2 XL whiskey

Pack contains 2 XL whiskey stones

Here's a velvety blue notebook celebrating the under-appreciated marine plants and algae that keep our marine ecosystems healthy

Give one any time you don’t know what to say

or get lost in the Archimedean Spiral

Yearly Planner

Equations That Changed the World 18 oz Steel Bottle Product Type_Pint Glass Pack contains 2 XL whiskeyRather than looking up part way through your proof to find once again that your coffee has gone cold, pour that precious brew into your fancy new math flask, and never have room temperature coffee again! Let yourself get lost in the elegance of your work and the beauty of the equations both on your page and on your flask. Wrapping around this brick red bottle, you'll find some of the most important, groundbreaking equations our world has known. Now go