C3H5N3O9 Experiment ZR012 ~ brainchild of Max Büsser (MB) and Felix Baumgartner (URWERK), it is the first watch to use an eccentric planetary transmission system for the timekeeping mechanism - i.e. the same geometry as the Wankel engine.
This original pin says it's for sight words but I would use it for learning to tell time. Put the tick marks in before I made the copies, and have the kids write the time on the band and draw the time on the analog clock face.
Cut a Stepped Dovetail Splice (Koshikake aritsugi)
Used in traditional Japanese architecture, this joint is for joining lengths of sill beam, but it can also be used decoratively in furniture, etc. Find out how to prepare one.I suggest you watch the video first, then read the steps given here
A pilot or explorer stranded in harsh conditions will appreciate the Breitling Emergency II — the successor to the original Breitling Emergency watch, introduced in 1995 — which is the first watch equipped with a dual-frequency locator beacon.
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