What does the observer do?

Related questions

1. What is observer effect in research?
2. What is an example of actor observer bias?
3. What does Dragon's Breath do?
4. What is a conscious observer?
5. Do Eyes of Ender break?
6. What does the observer effect mean?
7. Why does actor observer bias occur?
8. How do you tame a Ocelot?
9. Is the Guardian the same as the observer?
10. Can't measure something without changing it?

Tags

1. #facing
2. #update
3. #observer
4. #short
5. #updates
6. #placed
7. #redstone
8. #mined
9. #updated
10. #pistons
11. #block
12. #closed
13. #square
14. #pulse
15. #larger
16. #detector
17. #opened
18. #detect