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日本德岛大学的科学家发现,用一束聚焦的激光照在N—异丙基丙烯酰胺制造的圆筒中央,圆筒壁向内收缩,变成哑铃形状;撤去激光后,“哑铃”又立刻变回圆筒形。这一发
Scientists at Japan’s Tokushima University found that with a focused laser beam centered on the cylinder made of N-isopropylacrylamide, the cylinder wall shrank inward and became a dumbbell shape; after the laser was removed, the “dumbbell” Change back to cylindrical shape. This hair