Talk in English about Relational Mechanics (1 hour presentation plus 1 hour debate):
Slides of this presentation:
http://www.ifi.unicamp.br/~assis/Relational-Mechanics-04-02-2017.pdf
Talk in English about Weber's Electrodynamics (1 hour presentation plus 1 hour debate):
Slides of this presentation:
http://www.ifi.unicamp.br/~assis/Webers-Electrodynamics-06-11-2010.pdf