Pick My Home Store

Get access to great in-store deals and local pick-up

Exclusive Deals

Sign up for our email deals newsletter!

Pi By the Numbers Heat Change Mug by ThinkGeek



Online Only
  • Platform: Collectibles
  • Publisher: ThinkGeek
  • Developer: ThinkGeek
  • Category: Collectibles , Novelty & Gifts

Product Details:

There are two things we can't live without: math and caffeine. What better way to celebrate both loves than a mug surrounded by Pi? The same mug full of caffeinated brew, that's what. How about if we supply the mug, and you supply the caffeine?

Each Pi By the Numbers Heat Change Mug is covered in Pi. When it's cold, the mug displays Pi's nickname: 3.14. But when you fill that same mug with hot caffeinated* liquid, Pi majestically unfurls around it to 334 decimal places. The name by which mathematicians and physicists and astronauts and engineers and generally people interested in precision know Pi. 

* We haven't tested so we're not sure if the caffeine is required, but we figure you're better off not leaving it to chance.

Product Specifications 
  • Pi By the Numbers Heat Change Mug 
  • A ThinkGeek exclusive 
  • Displays 3.14 when cold
  • When filled with hot liquid, Pi unfurls around the mug to 334 decimal places
  • Capacity: 12 oz.
  • Materials: Ceramic
  • Not microwave safe
  • Not dishwasher safe

    Important Information:

    This item is only available on GameStop.com and our stores are unable to issue a refund. Please do not return this item to your local GameStop store. To return this product please refer to the instructions included on the packing slip that will be shipped with this item.