Density

Isn't density amazing? I always have a roll of plastic wrap in my dorm room. It's not for covering food though. Plastic wrap is amazingly useful when you're packing and want to make sure shit stays where they're supposed to. For instance, a plastic wrapped book will not get its pages crumpled and damaged in the traveling process; a bottle of toner won't open and spill if tightly wrapped in plastic wrap. As I live ~3000 km from home this plastic wrap is a necessity for me when packing. Who the hell knows that my poor belongings go through when it's being shipped or when it's being thrown around in my suitcase as it travels with me by air. But that's not the point of this post. What was the point again? Right, density. A roll of plastic wrap is very dense... and consequently very hard. It's so amazing though how something as thin and flimsy as plastic wrap can become so hard when rolled up densely. It's like the whole spider's web vs iron thing. Amazing.