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Cavitation bubbles bursting with cleaning power
Cavitation bubbles bursting cleaning power
2016/1/17
Since prehistoric times, clays have been used by people for medicinal purposes. Whether by eating it, soaking in a mud bath, or using it to stop bleeding from wounds, clay has long been part of keepin...
Bacteria power micro-ratchet（图）
Bacteria power thermal equilibrium macroscopic source of energy
2009/10/27
In contrast to the random motion of tiny objects placed in a bath of molecules at thermal equilibrium, miniature asymmetrically shaped cog wheels rotate continuously in one direction when exposed to s...