Discussing vortexes on this list might be off topic. <eg>
- Re: [Vo]:Vortex Engine James Bowery
- Re: [Vo]:Vortex Engine James Bowery
- Re: [Vo]:Vortex Engine ChemE Stewart
- Re: [Vo]:Vortex Engine James Bowery
- Re: [Vo]:Vortex Engine James Bowery
- Re: [Vo]:Vortex Engine James Bowery
- Re: [Vo]:Vortex Engine Abd ul-Rahman Lomax
- Re: [Vo]:Vortex Engine Terry Blanton
- Re: [Vo]:Vortex Engine Harvey Norris
- Re: [Vo]:Vortex Engine Terry Blanton
- Re: [Vo]:Vortex Engine Jed Rothwell
