How long have you been workig on the mini rocket thruster?

Question: How long have you been workig on the mini rocket thruster?
- Keywords:
  mini,
  rocket,
  thruster
Asked by aashishkebab to Charlie on 15 Mar 2011.
- Charlie Ryan answered on 15 Mar 2011:
  
  hi aashishkebab!
  well i’ve been doing it since the start of my PhD so about five years. Quite a long time but i’m doing different things from when i started, and have more reponsibilities.
  I still enjoy it aswell!

Question: How long have you been workig on the mini rocket thruster?