Janko

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Joined bestofyoutube.com: February 2012 (12 years ago)

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Janko's latest activity:

Video comments:

Video submissions:
1. How an atomic clocks works, and its use in the global positioning system (GPS) - 11 years ago
2. How a digital camera works - 11 years ago
3. Trike Drifting - 12 years ago

Link submissions:

Latest voted videos
1. The light bulb of the future - 11 years ago

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