Santa Prepares for Takeoff

What? Your children forgot to write to Santa and its almost Christmas? Not a problem, today's modern Santa uses email, so the kids can still drop him a line!

NORAD, the North American Aerospace Defense Command, will be tracking Santa during his journey online and by cell phone using Google Earth and Twitter.

Curious how Santa delivers all those presents in one night? According to Larry Silverberg, Professor of Mechanical and Aerospace Engineering at North Carolina State University, that requires controlling time, space and light. While this might seem difficult, Dr. Silverberg has a comprehensive explanation.