Wind energy is today's most developed form of "green" power on the planet. This comprehensive survey examines the history of wind power, from early peoples technology to harness the wind for basic mechanical tasks (such as turning grain to flour) through
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What's an Audio Format Audio format refers to the way an audiobook is recorded. Not all audiobooks have the same formats. Classic Audio: A human reading an audiobook without the text displayed. VOICEtext (H): Human narrator with text that you can follow along with as it reads. VOICEtext (S): Synthetic voice with text you can follow along with as it reads.
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