Scientists probe the use of the tongue for seeing in the dark or underwater. It's a very interesting system that translates visual or other information into electrical signals picked up by the tongue, which the brain can then use to "see" with the tongue.
Here is an interesting list of Advanced Sudoku Strategies. Some of them are pretty complex, so I'm probably too lazy to learn them right now. Maybe you'll get more use out of them though.
Posted by Robert Stern on 4/23/2006 02:00:00 PM