[Alter Kaker]

Once again, still came to the conclusion that glass is an amorphous solid and not a crystaline solid. Do look up the difference sometime. Thanks.

Amorphous or crystaline, glass is solid. Thank you, have a nice day.

[Dead Corpse]

Yes. Solid. I never argued that now did I? Look up Amorphous. Crystaline structures are held in place by the internal arrangement of atoms. "Amorphous" solids react quite differently to heat and stress than crystaline solids. Glass and water ice do not fall under the crystaline definition.

So, what does this mean in relation to our discussion. Well, take a dark ariplane, park it on ice, and let it sit. As the ice heats and cools, at a completely different rate than the surrounding ice, it will eventually "bury" itself in the ice thorough a number of different reactions, including the addition of more snow on top of it. Ice cores, on the other hand, are all made of ICE. They melt and freeze at the SAME rate. So while ice core data may be great for determining the age of the ice itself and any gas bubles frozen in it, it isn't an accurate portrayal for the age of more solid objects like airplanes.