Science tech

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    How To Fix your Android Phone's Micro USB Charging Port

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  2. NASA's Earth Minute01:40

    NASA's Earth Minute

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  3. How to turn styrofoam, into solid aluminum02:29

    How to turn styrofoam, into solid aluminum

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  5. A flexible concrete tent02:20

    A flexible concrete tent

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  6. Lego Technic 6-Speed RC Servo Transmission03:03

    Lego Technic 6-Speed RC Servo Transmission

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  7. The Problem with Time and Timezones10:12

    The Problem with Time and Timezones

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