Photo credit: www.theguardian.com“Santa” by Robert Ariail Credit: http://robertariail.com/2011/12/22/santa/“Drone home delivery” by Dave Granlund (purchased license)Elf on a Kiva Credit: KivaSystems.comSanta’s future sleigh? Photo credit: Skylon by Reaction Engines http://www.reactionengines.co.uk/
