Use "figure it out" in a sentence

1. Whatever they were actually making here, I can't figure it out.

Was auch immer verdient wurde, ich krieg's nicht raus.

2. Feynman decided, as a sort of amateur helium physicist, that he would try to figure it out.

Feynman entschied, als eine Art Amateur- Heliumphysiker, dass er versuchen würde, das zu lösen.