Adam demonstrates how (and explains why) helium turns you into Donald Duck, and sulfur hexafluoride into Satan. | For more MythBusters, visit http://dsc.discovery.com/tv-shows/mythbusters/#mkcpgn=ytdsc1 Subscribe to Discovery! | http://www.youtube.com/subscription_center?add_user=discoverynetworks Catch all new episodes of MythBusters Saturdays at 8/7c! Watch full episodes! | http://bit.ly/Myth
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