- Studying for the [[Google Cloud - Professional Cloud Architect - Index|Google Cloud - Professional Cloud Architect]] - Trying to explain [[amortisation]] - I still cannot explain it simply ! Helo welcome - Why [[Each month has 730 hours ... kind of]] per month is often used in monthly calculations? - A new page for the brilliant [[Category_Attribute_Service file]] - Some  calculations in the[[Reserved Instances]] article - and finally the beginning of a new article called [[Questions you can ask a CUR file]]