This week's "Is it Possible?" demonstrated that if you have already gotten rid of that old Ataris, you can still play the classic version of ping-pong if you have a herd of sheep, a field and a border-collie at your disposal.

Sarcos Raytheon's XOS exoskeleton was demo'd on Discovery Channel's Is it Possible? last night, and judging from the vast increases in stamina and strength, a real Iron Man doesn't look out of the question.