The notion that 2012 is significant (because the Mayan calendar's "long count" resets in December of 2012, an event that happens every 5000 years or so) has been around for at least 20 years; I can...
Viscosity is referring to how thick/dense a liquid is. For example, maple syrup would have much more resistance (viscosity) than say, water or juice because it's thicker in consistancy.