Hua * Hospital.

In the laboratory of the color-changing materials research group, Yang Duanhe has placed a handkerchief-sized cloth in front of him.

Half of the cloth was placed on the stainless steel laboratory table, and half was suspended in mid-air.

It can be seen that half of them have become incandescent under the irradiation of incandescent lamps, and the other half of which are attached to stainless steel are completely silver-white of stainless steel.

This effect alone far exceeds that of several previous studies.

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