Energy harvesting is great for things that use extremely small amounts of power, such as your wristwatch. Cellphones use a LOT of power; anything you could extract from heat and motion would just be a drop in the bucket.
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Energy harvesting is great for things that use extremely small amounts of power, such as your wristwatch. Cellphones use a LOT of power; anything you could extract from heat and motion would just be a drop in the bucket.