How to make glass in Minecraft, and what it's used for

You can make glass in Minecraft by smelting blocks of sand, and combining the glass with other items can craft even more.
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Minecraft | The ULTIMATE Minecraft Trolling Machine! | Only One Command (One Command Creation)

Welcome to the ultimate minecraft trolling machine, and what's better, is it takes only one command block to make! Using minecraft redstone, IJAMinecraft and I show you how to troll in minecraft in ...