In Minecraft, I would like to build my house out of Glass for aesthetics, but I'm worried it will be very vulnerable to Creepers. In order to minimize potential damage, I'm thinking of building my ground floor out of cobblestone. However, I'm not even sure if this will make a difference, seeing as I don't know whether or not a Creeper's explosion is smaller/larger depending on whether it's exploding against open air, dirt, stone, etc.
It seems that it explodes in a larger radius in a bunch of earth than in a bunch of stone, but I'm only going off of subjective (albeit painful) experience here. Can anyone enlighten me?