Iridium is a very rare metal used in spark plugs, mainly because it is the most corrosion-resistant metal. As you may or may not know, high temperatures make metals corrode easier. In your engine, you don't want things to corrode. Normal spark plugs corrode fairly easily, and when they corrode they don't fire nearly as effectively, thus you don't burn as much fuel in the cylinder, thus you are a naughty child and you're wasting precious petroleum. Iridium doesn't corrode, not at temperatures found in your typical engine anyway, so it fires much, much more efficiently. Use the Iridium spark plugs!
Note: Iridium was formed shortly after the meteor that killed the dinosaurs struck the Earth, and that was the only time that it was formed, based on the evidence that Iridium is almost always found at the same depth in the crust. Thank you dinosaurs, for giving us Iridium.
Over Thanksgiving break I had the experience of teaching a small child something. It was nothing short of amazing. I taught a two-year-old how to build a wall of dominoes that doesn't fall over. Engineering principles were embued into his brain. How f'n cool is that?!!
This post ends now because I have other things to post.
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