It is a very rare event in a young man's life when he asked to build a functioning air conditioner out of LEGO bricks. It is absolutely extraordinary when he is asked to build a second functioning air conditioner out of LEGO bricks. I am that man. Yes, I was asked to build another working air conditioner just using LEGO elements this time at the Bryant Convention in Las Vegas. I had a great time over the three days putting piece after piece until I had constructing a reasonable facimile of Bryan't newest air conditioner. And using LEGO Mindstorms, I was able to build an adjustable fan that actually blew air at different speeds cooling the entire room. Or at least the three feet around the fan.