• Pinterest

Stories this photo appears in:

Calculator Batteries, Killer Terms

Matt: My solar-powered calculator. How long will it last? Is it a perpetual-motion machine that will go on calculating into the next millennium? Does it have any parts that will die off like any ordinary ...

Comments

Sign in to comment

Win a Pair of 3-Day Passes to
KAABOO Del Mar

Join our newsletter list

Each newsletter subscription means another chance to win!

Close