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Perpetual Calendar

By: KiwiCo

Type: Box Set

Product Line: Eureka Crate

Last Stocked on 12/21/2023

Product Info

Title
Perpetual Calendar
Publisher
Product Line
Dimensions
11.25x7.5x3.5"
NKG Part #
2148000980
MFG. Part #
F1790-ECAL
Type
Box Set

Description

Seize the day with this mechanical flip calendar that can be used year after year. Construct the date and day-of-the-week tumblers, add the month dial, then put them all together using a marvelous mechanism called a Geneva drive. Explore the evolution of perpetual calendar design, then read about some kooky calendar calamities through the ages (from skipped leap years to the Y2K bug)!