DD8 conducted a series of "scientific" experiments on Minecraft yesterday, in creative mode.

First, she built the tallest pillar the game would allow her to build. At specific intervals along the pillar she placed trap doors. Then she spawned a creature on the topmost trap door, opened that door and each below in turn, and counted the number of doors each creature fell onto before it finally died. The results were recorded on signs posted near the top of the pillar.

She was quite affronted that the witch didn't die (it used healing potions in between doors), so DD repeated that and all subsequent experiments with a lava pool on the bottom.

The next set of experiments involved structures built of TNT, underground and above ground, sometimes filled with villagers and animals.