What's the big difference between an inventor and an engineer
Well, without resorting to a resource like dictionary.com, I'd say that an inventor thinks up new things or improvements to old things and an engineer figures out how to make those new things or improvements.
inventor invests things. an engineer builds things, or engineer is just a fancy way of saying inventor. that's what I think, I could be wrong.
An engineer makes more or a model of what the inventor made.
inventor is person who invent something new like Nikola Tesla and engineer is just person who is knows how some engines function. Even people can be engineer and inventors at same time.