Save this url for when you need a bit of comic relief.
It's a real experiment and had a good result, but filling a sealed PC case with pure cooking oil as a coolant is a bit much and makes me think the folks at Tom's Hardware have a bit too much time on their hands and money for their own good.
What they ended up with is a high-performance PC that operates totally silently. No fans to disturb the user at all!
If you do this with Intel Xeons, you can make french fries.