The PF community is in grieving. It is with a profoundly heavy heart that I announce today we say goodbye to arildno. He was a friend of more than 10 years. Today we remember a great mind and person. Today we remember the great impact arildno had on the community and countless visitors. arildno was special and it can not be understated how many people he helped. It's truly a gift to humanity. arildno was one of our first Science Advisors. His first post at PF: https://www.physicsforums.com/showthread.php?t=19860 His last post at PF: https://www.physicsforums.com/showthread.php?t=754060 In between are 10 years of incredible memories of service and friendship. I ask that every member/visitor who had any contact with arildno to take a few minutes to remember a positive memory. It won't be difficult. arildno goes on to be immortalized in PF family legend. His efforts here will be long-lasting and long rewarding to those who were touched by him. Please feel free to share your thoughts and favorite moments about arildno below. We would like to share this with his family so that they can appreciate just how important he was to us all. A black ribbon has been added to the PF logo. It will remain there for 30 days for us to remember. Edit: For those who missed it, please read Evo's post of the message from Arildno's family.