A cool science quiz

An Inventions Quiz, 15 famous inventors and their inventions.
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I should tell you my score, but I will wait until you get a chance.

I have a better thought. I will leave a clue to my score in the text of this post. In fact, if you can puzzle out the clue, you can report my score. I thought of a way to give a clue, but I think I need to do better than that. I am positive I can do better than that.

Yes, there is a clue or more in this post. I found a way to give multiple clues. In fact, the number of clues I created points to a clue. Can you figure it out?

This is another post obviously trying to get more people to comment. I’m hoping an interactive post is the answer.

I’m having too much fun. I think it is time to stop.