.........it works...sorta
Thought I'd give it a try, bought 30lbs of dry ice (10lbs of it evaporated to about 3lbs since my wife bought it the night before)
it does work, but it's kind of hit and miss depending on the section of the floor, the good part is it would be a great thing to do in the middle of summer since it does keep you cool
bad part is that I leaned my arm against the floor (no dry ice right on that spot) and now I have a nice little patch of frost bite... )
In the picture is Mike Rose, he wanted to see in person if this method works and helped in the process as well....thanks Mike