What did the researchers discover regarding the motion of the steel beams in the energy harvesting model?
The researchers discovered that steel beams, when oscillating in a regular, periodic motion going back and forth, accumulate more energy compared to beams that move chaotically without any pattern. This finding has implications for improving the efficiency of energy harvesting devices.
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### Instruction:
What did the researchers discover regarding the motion of the steel beams in the energy harvesting model?

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### Response:
The researchers discovered that steel beams, when oscillating in a regular, periodic motion going back and forth, accumulate more energy compared to beams that move chaotically without any pattern. This finding has implications for improving the efficiency of energy harvesting devices.<|im_end|>