photo

John Keevil


retired

Last seen: 5ヶ月 前 2016 年からアクティブ

Followers: 0   Following: 0

Formerly employed as an engineer designing microwave antennas and power combiners etc. Currently interested in the mathematics of Orbital Mechanics.

統計

All
  • First Answer
  • Personal Best Downloads Level 1
  • 5-Star Galaxy Level 1
  • First Submission

バッジを表示

Feeds

表示方法
アクティビティなし