Why are there giant concrete tunnels in the desert?

Hey Physics Girl or Scientist Grrrl or whatever your name is. Everything in this video is what I look for in a professional contemporary feature. Except for one thing. It's a shame your mic or wind cut failed in the desert because that was painful to watch. If I had made this I would have redone those scenes because that's the only flaw in this most excellent video.
 Keep up the good work; you'll be going some places, kid.

Also, may I be so bold as to say I think you are a real bonafide cutie. If I am being is too forward please accept my sincere apology. ;-)