I once was involved in building a snow motel in a 10-foot plus snow drift for a dozen campers. Toasty warm! This pales in comparison to the Km-on-a-side neutrino detector at the South Pole, which was finished this week. Some
details here. A video and some science stuff can be found
here. I personally prefer my scotch whiskey neat, but for those who do scotch on the rocks, this is indeed a huge ice rock!
