'It was the Persians, not the Dutch, who invented this energy-producing machine to grind grain'
a windmill
ENGINEERING: It was the Persians, not the Dutch, who invented this energy-producing machine to grind grain
It was the Persians, not the Dutch, who invented this energy-producing machine to grind grain
It was the Persians, not the Dutch, who invented this energy-producing machine to grind grain
ENGINEERING
a windmill
ENGINEERING