Please see updated video at:
http://uk.youtube .com/watch?v=BPBeGH_ 5LM4
5 minute video on how to overclock your graphics card. Includes installation of coolbits registry mod. Links to featured tools are included in the video.
Another vacuum powered lego steam engine. This time I made the valve and power stroke shorter and used some WD40 as lubricant. Turned out not too bad but should have made the conencting rods shorter to prevent the buckling which occurs at high speed.