They tried and failed three times (episodes 16, 46, and 157). Here's an interesting write-up about the team of MIT students that worked with them on the second

They tried and failed three times (episodes 16, 46, and 157). Here's an interesting write-up about the team of MIT students that worked with them on the second try: http://web.mit.edu/2.009/www/experiments/deathray/10_Mythbusters.html http://web.mit.edu/2.009/www/experiments/deathray/10_Mythbus...