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- Season 1 1993-12-10
- Season 2 1994-12-16
- Season 3 1995-08-20
- Season 4 1996-09-02
- Season 5 1997-08-17
- Season 6 1998-07-27
- Season 7 2000-01-03
- Season 8 2001-01-08
- Season 9 2002-01-02
- Season 10 2003-01-01
- Season 11 2004-01-16
- Season 12 2005-01-05
- Season 13 2006-01-04
- Season 14 2007-01-17
- Season 15 2008-01-07
- Season 16 2010-01-14
- Season 17 2010-10-29
- Season 18 2011-10-03
- Season 19 2013-07-16
- Season 20 2021-02-20
- Season 21 2021-07-25
- Season 22 2021-11-28
- Season 23 2022-02-16
Season 23 Episode
- Season 14 Balls
- Season 14 Environmental Tech
- Season 14 Canning
- Season 14 Pumps
- Season 14 Ice
- Season 14 More Ice
- Season 14 The Destroyer
- Season 14 Star Trek Tech
- Season 14 Weapons of Mass Destruction
- Season 14 Barbarian Battle Tech
- Season 14 Dams
- Season 14 Yard Tech
- Season 14 More Military Movers
- Season 14 Deep Sea Salvage
- Season 14 Welding
- Season 14 60s Tech
- Season 14 It Came From Outer Space
- Season 14 World's Strongest II
- Season 14 Engineering Disasters of the '70s
- Season 14 70s Tech
- Season 14 Truck Stops
- Season 14 Fertilizer
- Season 14 Cheese
- Season 14 Saws
- Season 14 Aluminum
- Season 14 Sticky Stuff
- Season 14 Chocolate
- Season 14 Bedroom Tech
- Season 14 Vacuums
- Season 14 Traps
- Season 14 Nature Tech: Volcanoes
- Season 14 Star Wars Tech
- Season 14 Extreme Aircraft II
- Season 14 Deep Freeze
- Season 14 Acid
- Season 14 World's Sharpest
- Season 14 Engineering Disasters 21
- Season 14 Environmental Tech II
- Season 14 Corn
- Season 14 The Pig
- Season 14 Rocks
- Season 14 Most Shocking
- Season 14 Cold Cuts
- Season 14 Fast Food Tech
Modern Marvels - Season 14 Episode 9 Weapons of Mass Destruction
8.00 44 minutes Nuclear and biological Weapons of mass destruction are examined. With a computer-generated depiction of a dirty-bomb attack in Seattle and how scientists identify biological agents.
