So my Minecraft server had an interesting weekend.
Friday night I finished a 'greenhouse' glass dome, and decided to make a 'space simulator' next door. So I sets a point at one corner at +20 AGL, hit the other corner of the cuboid I want and set it at -63 (Assuming 'sea level' as zero, puts the top of the sky at +64 and the void at -64), set the contained area to zero, patch the water and lava, and then completely lose my mind.
I get on the bottom center and make a sphere, hollow, of glass..
200 cubes in radius. It's large enough that you cannot see both side simultaneously, and cuts off enough at skytop that it looks like a circle, not a sphere.
So I //undo that command, and crash the server. I reboot same and log back in, and try again with a 100 radius.
server stays up. Far too damn large, though. //undo
server crash.
at this point, fark it. I do 75 50 25 radius hollow spheres of glass.. no space simulator, but if you get high on the walls and look at it, it's kinda glowy and wiggly, neat moire patterns..
I made a hyperspherical minecraft nuclear reactor. That's my story now, and I'm sticking to it.
Saturday, one of my users fumbled a command and made a 500 radius sphere of leafblocks instead of a 5 radius, and tried to burn it out.
We ended up having to roll the server back from a backup.
Turned animals and monsters back on, things are starting to get interesting.