Without the water base, our cannon would explode and that's not the effect we're looking for. When activated near water, or any other liquid, the effectiveness of TNT's explosion will be limited greatly as well, most often negating any explosiveness. Later on, you will notice that our cannon uses a base of water beneath the TNT charge and this is why. Air has the weakest blast resistance and obsidian the strongest. The blast resistance of each block type will determine the TNT's destructive force.

The destructive properties of an activated TNT block depends on the blocks it is activated near. Properties of TNTĪs I'm sure you know, TNT is dangerous stuff. After all, the only thing better than explosives, is a device that shoots explosives.

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Minecraft how to make a tnt launcher