摘要
一尼泊尔少年设计出一款用人类头发做成的价值为23英镑的太阳能电池板。
A Nepali teenager has designed a ￡23 solar panel using human hair. Milan Karki, who is 18 years old and lives in a village in rural Nepal, used human hair to replace silicon, which is a common but expensive component of solar panels.
