I ran a search and didn't find this so forgive me if it's been discussed.
But I came across this old video of Qigong Master Jo, who uses his abilities to channel heat through his hands and can make himself lighter.
His abilities are videotaped using an infrared camera to see the heat.
I thought it was pretty interesting to say the least.
[edit on 7/4/2008 by Mad_Hatter]