Formula for Gravity T-Shirt—Pigville Productions favorite science tees to boldly go where no

to boldly go where no man has gone before

Neil deGrasse Tyson and Bill Nye for President

The celestial teapot is an analogy first coined by the philosopher Bertrand Russell (1872–1970) to illustrate the idea that the philosophic burden of proof lies upon a person making scientifically unfalsifiable claims rather than shifting the burden of proof to others

permanently blocked

Formula for Gravity T-Shirt—Pigville Productions favorite science tees to boldly go where noDeny GRAVITY but you'll still fall off the roof. Women's tees run Small *Please take a look at our size chart before ordering (which is the last image) as all shirts are made to order and we can't do exchanges based on ordering the wrong size.