Published Sep 15th, 2013, 9/15/13 5:23 pm
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41
This re-programmable hourglass has six stages which it shifts through throughout a set amount of time (30 minutes by default). When time is up, getting all the sand from the bottom to the top and starting all over again is as easy as pushing two buttons.
Additional Notes
Progress | 100% complete |
Tags |
tools/tracking
2477907
2
functional-hourglass
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