MSI Powerless CPU Cooler

MSI is using old technology in a new way, by using a Stirling Engine it turns heat generated by the processor to spin a fan and cool a heatsink. Its not completely functional yet, but it will be show cased at CeBIT.
Mobo maker builds 'powerless' processor cooling fan | Register Hardware

 

This is really cool! Simple and beautiful. I like inventions like that most of all.