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What is the Friday After Thanksgiving? A grand event that could only happen at MIT! Participants link their mini chain reactions together forming one mega chain reaction - set off at the end as the event's thrilling culmination. It's like watching a giant domino demonstration. 1,500 people from all over watch and participate in this fun-for-all-ages "extreme" event.
Also, every Sunday, from 10 a.m.-noon, admission to the MIT Museum is free.