https://www.youtube.com/watch?v=6-oCECzvhZA&feature=youtu.be
Reproduce the genius design of Leonardo da Vinci, the novice can easily complete the model!
The ball timer uses precision gears so that the rolling ball drives the seesaw mode platform.
Use gravity and dynamics to measure the passage of time!
The assembly process does not require glue, paint or battery, just careful eyes to ensure that all kinds of gears and parts installed in the correct position, so that the gear can drive the timer.
Origin / manufacturing method
Origin: South Korea
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- Plastic
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