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Physics & Chemistry

If this Perpetual Calendar is Rockin, Don’t Come Knockin’

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This one goes out to all of my physicists out there. Yeah, you know who you are. I think it is time to ditch your lame desk calendar for something a little more physic-y. I don’t have the slightest clue how this calendar actually works, but there are some magnetic balls that mark off the month and day of the week with a little black magic. Wait, how does it know when it is a leap year? $38.

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