Out of stock

2-4 weeks

<DIV>From the creator of the webcomicxkcdand author of the #1New York TimesbestsellerWhat If?, a series of brilliantlyand simply!annotated blueprints that explain everything from nuclear bombs to ballpoint pens </DIV>

In English

From the creator of the webcomicxkcdand author of the #1New York TimesbestsellerWhat If?, a series of brilliantlyand simply!annotated blueprints that explain everything from nuclear bombs to ballpoint pens

Thing Explainer

Permanently out of stock