This event has passed — Saturday, April 11.

Ring the Bell: A Semiquincentennial Contraption Contest - Saturday, April 11 at 11:30 AM at Bok Building in Greenwich, PhiladelphiaGreenwich

Ring the Bell: A Semiquincentennial Contraption Contest

Saturday, April 11 at 11:30 AM·11:30 a.m.-1:15 p.m.·Greenwich·Bok Building

Ring the Bell: A Semiquincentennial Contraption Contest

Posted to Greenwich on March 25, 2026

About

When

Sat, Apr 11 at 11:30am – 1:15pm

Where

Bok Building

1901 S 9th St, Philadelphia, PA 19148

Pig Iron is teaming up with The Philly Contraption Contest to celebrate our city's middle school inventors with a competition to see who can build the best Rube Goldberg machine. Each machine should R

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