Auto emission is hazardous and has to be controlled.

As a scientist, I play in the top league - the Olympics, the World Championships - and I want to be in the lead. As a runner, I set personal goals, and I want to push beyond my own personal limits. I was very happy when I practiced for several months and then reached my goal to run a marathon in 2:50.

When I was running the marathons in Munich, I always trained by myself. Between the demands of graduate work and a young family, I had to train at unusual hours. A few times, I ran home from my lab late at night, which was 20 kilometers out of town.

Laser cooling opened a new route to ultralow temperature physics. Laser cooling experiments, with room temperature vacuum chambers and easy optical access, look very different from cryogenic cells with multi-layer thermal shielding around them.

After earning my Ph.D., I stayed at the Max-Planck Institute as a postdoc, working on laser excitation of Rydberg states of triatomic hydrogen and helium hydride. I also succeeded in analyzing all the emission spectra of helium hydride, which I had discovered during my Ph.D.

I think both running and science reflect certain character traits. I have endurance, patience, and ambition. I'm willing to work hard toward a goal, to push myself and overcome limits. Running and science both let me express these traits.