So in the Dutch equivalent of Secret Santa, we have a tradition where the gifts are cheap, small and silly, but the giftwrapping should somehow be an elaborate prank. Does the US have something like that? Sounds like something people in college would do.
Anyway, I bring this up because friend of mine once decided to encase a small gift in the centre of a bucket full of pykrete.
The joke obviously would that the receiver would just have to wait for the thing to thaw because it was impossibly hard to break it. Then they discovered that somehow, the woodpulp in pykrete makes it extra insulating. On top of that, since it wasn't a flat slab but a roundish sphere (low surface area compared to volume), it didn't exactly absorb ambient heat quickly either. So that other friend apparently had to wait over a week before the thing was thawed enough break open.
Anyway, I bring this up because friend of mine once decided to encase a small gift in the centre of a bucket full of pykrete.
The joke obviously would that the receiver would just have to wait for the thing to thaw because it was impossibly hard to break it. Then they discovered that somehow, the woodpulp in pykrete makes it extra insulating. On top of that, since it wasn't a flat slab but a roundish sphere (low surface area compared to volume), it didn't exactly absorb ambient heat quickly either. So that other friend apparently had to wait over a week before the thing was thawed enough break open.