The latest information on Minecraft 1.10 update is out, and here is all the minecraft 1.10 news you need! A new observer block, new structure block updates, and 2 NEW NETHER WART BLOCKS! Crazy ...

For example, it can detect block placement, block removal, fluid flow, and much more. But making this block can be a bit of a process. Read this guide to learn how to make an Observer in Minecraft.