Behold astronomer Dr. Frank Drake's equation used to estimate the number of tech-minded civilizations out there among the stars. This t-shirt features a description of each of the equation's variables, on the reverse side of the shirt.
--- A unique and easy gift for children who love watching E.T., SETI fans, and future explorers of time and space. Want to match your mini-adventurer? Make sure to check out the adult sizes of this shirt!
Shirt Front shows: Drake's equation.
Shirt Reverse shows: (See zoomed in photo for equation diagram)
☆ Soft & medium-weight white t-shirt
☆ Designed in-studio
☆ See size chart in photos
☆ 100% soft jersey cotton
Made to order. Please see 'Production Times' chart for current production times.