In a very basic distillation of their definitions, these terms refer to the positions created by two celestial bodies and the Earth: Opposition means the two bodies are on opposite sides of the ...

During the Middle Ages, alchemists developed sophisticated ways to tap the medicinal powers of the Earth’s bounty ... to collect herbs to the exact specifications for constructing distillation ...

In this video, Fran Scott explains fractional distillation - the separation of crude oil into fractions. Crude oil is a finite resource; petrol and other fuels are produced from it using ...