fraudulent-frost

Frost on car windows is an issue, but the science behind it is too complicated for me to recall. Which of the following fraudulent explanations is your favorite?

• The warmer air molecules inside a car move faster than those outside, causing microscopic cracks in the window that collect condensation and then ice later (similar to the effect that causes glass to shatter in hot water).~
• Ever since the 1940s, the trace amounts of nuclear test residue in the air have made windows slightly radioactive and that causes them to frost over.~
• Car manufacturers have a form of glass that doesn't condense, but the glass is illegal thanks to lobbying from the ice scraper industry.~
• The warm air blown on your windshield from the inside is actually the root of the problem -- the air causes the frost to melt but leaves enough ice IX behind that seeds the formation of more ice later.~
• Prolific use of Chlorofluorocarbons (CFCs) in the 1970s and 1980s means that windows actually frost less, due to ammonia formed in small amounts from an endothermic reaction with water. Since the Montreal Protocol in 1987, this effect has been reduced but the reaction still occurs.~