So we did a second parabola.

Much later, Robert Maillart's bridges, which optimize structural form with a calculus curvature almost like a parabola.

And after that first parabola, you know, the doc said everything is great. He was smiling, and we said go.

We had a press conference, we announced our intent to do one zero g parabola, give him 25 seconds of zero g.

I had just taken trigonometry in high school, I learned about the parabola and how it could concentrate rays of light to a single focus.