The 5 Ghz liquid nitrogen cooled chip

Here is a CPU Cooling With Liquid Nitrogen Record Attempt: The 5 GHz Project. An interesting data is the extreme heat dissipation that needs to accomodate for the 1600 KW per square meter, or about a thousand times the heat flux received from the sun on a solar panel in space. Liquid nitrogen only helps because the actual surface area in this example is small. The actual output is 84 W (not much more than a light bulb). A capillary loop heat pipe would do the job without having to resort to cryogenics. But hey, liquid nitrogen looks good on slashdot.