I now this has probably been posted b4 but i was just doin it the other day and thought that some people might like it if they havent all ready discovered the joy and fleeting joy of standing in mid air . All u have two do is find a mining vain(doesnt matter wut kind) and jump on top of it. then just mine it while u r on top of it and when it dissapears you will be left standing in mid air!!! u will fall back to the ground if u muve.