Season
- 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 13 Containers
- Season 13 Fire
- Season 13 Cotton
- Season 13 Engineering Disasters 18
- Season 13 Candy
- Season 13 Weird Weapons: The Axis
- Season 13 Nature Tech: Avalanches
- Season 13 Engineering Disasters: New Orleans
- Season 13 Leather
- Season 13 Engineering Disasters 19
- Season 13 Insulation
- Season 13 Hi-Tech Hitler
- Season 13 Shovels
- Season 13 Drilling
- Season 13 80s Tech
- Season 13 Ben Franklin Tech
- Season 13 Copper Kings
- Season 13 Heavy Metals
- Season 13 Money
- Season 13 BBQ Tech
- Season 13 American Eats Special
- Season 13 High Explosives
- Season 13 Pirate Tech
- Season 13 Boneyard: Where Machines End Their Lives
- Season 13 World's Biggest Machines 5
- Season 13 Super Tools: Skyscraper
- Season 13 The AK-47
- Season 13 Nuts
- Season 13 Classic Cars
- Season 13 Making Medieval Armor
- Season 13 Rube Goldberg
- Season 13 Batteries
- Season 13 Mummy Tech
- Season 13 Levees
- Season 13 Water
- Season 13 The Cola Wars
- Season 13 Copper
- Season 13 Shotguns
- Season 13 Building In The Name Of God
- Season 13 Horsepower
- Season 13 Renewable Energy
- Season 13 Freight Trains
- Season 13 Cities of the Underworld
- Season 13 Atlantic Intracoastal Waterway
- Season 13 Stealth & Beyond: Air Stealth
- Season 13 Stealth & Beyond: Sea Stealth
- Season 13 Ink
- Season 13 Distilleries 2
- Season 13 World's Strongest
- Season 13 Tomcat Sunset
- Season 13 Tobacco
- Season 13 The Supermarket
- Season 13 Breakfast Tech
- Season 13 Wine
- Season 13 Harvesting 2
- Season 13 Engineering Disasters 20
- Season 13 Snow
- Season 13 Tea
- Season 13 Christmas Tech
- Season 13 Wind
Modern Marvels - Season 13 Episode 57 Snow
7.97 44 minutes It is the bane of every suburban parent and the joy to every school kid. Born in a swirling storm cloud through a process called nucleation, the characteristics of snow flakes are threatened by pollution trapped in the clouds.
