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Jugglers of all sorts and ages performed at Walker Memorial Friday evening.

A juggler maintains eye contact with a ball as he juggles to keep all four in motion.

A performer practices "contact juggling" by manipulating a clear, glass sphere.

Primrose, guide dog puppy at Guide Dogs for the Blind, gnaws on a rope.

Fernando Velasco escapes from the Jaws of Death.

Lewis (Owen Vaccaro) examines his uncle's magic house.

David Rush breaks the Guinness World Record on Friday night (Sept. 14) for taking the most bites out of an apple while juggling at Walker Memorial.

TechMart, a grocery store that opened in the Walker Memorial building Monday, aims to provide "at cost" groceries to students after Star Market closed down in the spring.

A young girl learns the grip and technique for spinning the hoops from an experienced juggler.

Justin Solomon is a member of the Metric Geometry and Gerrymandering Group (MGGG), a group of Boston-based researchers developing computational algorithms for quantifying the fairness of voting districts to better und...

Ruchi Sanghvi, the first female engineer to work at Facebook, addresses the hackers at the opening ceremony of HackMIT in Kresge Auditorium.

David Wartinger is awarded the Ig Nobel Prize in medicine for discovering that certain roller coasters can help hasten the passage of kidney stones Sept. 13 at Harvard's Sanders Theatre.

Copies of HackMIT's direction booklets, which were provided to every hacker upon check-in.