"Mark Summer" is the Turtle Island Quartet's cello/cellist; he is a founding member and has performed with Turtle Island since its founding in 1985.

More Mark Summer on Wikipedia.

If you have power from the grid, it's only (for) four or five hours a day.

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It's the start of a revolution.

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A regular PC uses between 100 and 200 watts and a standard notebook uses 40 to 50 watts.

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