Summary
I. Force: Casimir force, normal and lateral
II. Motion: Ratchets, and propulsion 
III. Heat/force in near field 
IV. Reciprocity: Constraints on propulsive force 
V. Power: Work, motion, Onsager, friction, and efficiency 
VI. Summary
Acknowledgments
David Gelbwaser, Noah Graham, Matthias Krüger
Mohammad Maghrebi, Jamal Rahi, Vlad Golyk, Ramin Golestanian
G. Bimonte, T. Emig, R.L. Jaffe
