One of Leonardo da Vinci's lesser known works in which he described, in minute detail, the design for a time travel machine. Late in the 20th century, these journals were sold to
Microsoft Corporation in order the fund ongoing anthropological quests for the Holy Grail by a private historian, based somewhere in the former USSR. It is believed that the forthcoming
Windows release, Longhorn, will contain time travel capabilities which are currently under development at
Microsoft's Redmond HQ, under the project name "Visual Surgleyfonk#++.NET".