How to charge a phone from the rail tracks. Measuring voltage on the railway.

How to charge a phone from the rail tracks. Measuring voltage on the railway.

How to charge a phone from the rail tracks. Measuring voltage on the railway.

How to charge a phone from the rail tracks. Measuring voltage on the railway.

User: Obarasubara

Views: 55

Uploaded: 2016-03-08

Duration: 03:02

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