Hi Monti, The basic difference is: when you discover something, that means it already exists - you're just the first person to notice. When you invent something, that means it hasn't existed before,- you've created it.

Discover 1.Discover or determine the existence, presence, or fact of 2.Make known to the public information that was previously known only to a few people or that was meant to be kept a secret 3.Get to know or become aware of, usually accidentally while invent refers to. 1.Come up with (an idea, plan, explanation, theory, or principle) after a mental effort 2.Make up something artificial or untrue cowboy...