It became a stress relief and is addicting. At first i thought it was ugly with all those big block but it grows on you once you get to know it. It is simply genius. Today i play with a set of modpacks called FTB. This stuff is amazing! the machines you can build, the complexity. You can even build and program your own virtual computer or make a punk-steam flying machine.
Energy conversion (damn this GregTech, it make everything more expensive):
http://ftbwiki.org/Minecraft_Joules_(MJ)
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