Fort Notch is back

[Pipa]

http://www.minecraftwiki.net/wiki/Tutori...e_detector

"The Block Update Detector, or "BUD switch", is a redstone mechanism that exploits bugs and quirks in the game in order to detect changes in nearby blocks."

I don't really mind, but it would be good to know what bugs i can use and what not. I do think both bugs have a similar effect or outcome by reducing the time spent to get either resource drastically. The conventional method of getting sand or wheat (even with a large farm) is much harder than a sand duplication machine or auto wheat farm. And the time saved with either bug is quite similar.