JP Interview Part Five

MoonandBack Interview with John Powell, part 5 – Helium, Hydrogen and Flying

One Response to “JP Interview Part Five”

  1. Steve Price says:

    Wow, that was a really great interview! That video series is actually a really good intro to all the amazing things you guys do. You really should have an abridged version of this talk on the front page of the website. Having been following this blog for years, even I didn’t put all the pieces together.