Pokeberries — the weeds that children smash to stain their cheeks purple-red and that Civil War soldiers used to write letters home — could be the key to spreading solar power across the globe, according to researchers.
Pokeberries — the weeds that children smash to stain their cheeks purple-red and that Civil War soldiers used to write letters home — could be the key to spreading solar power across the globe, according to researchers.