Late thanks for PF staff.... I try to post at " Give thanks to PF Staff!" thread created by Greg but I can't so I create this thread. I'm really grateful that I join this forum. For me, this is a great place to learn more about science. Just want to give my sincere thanks to all the PF staff !! Couldn't have done any better without you. *NB : I'm also late to vote Is the schedule always the same every year (1st - 8th dec)?