Globally Distributed Pendulum Experiment as an Educational Resource on e-lab. - Rui Borralho Neto; Horácio Fernandes 002; Tiago Pereira; Isabel Borges; Gesil S. Amarante-Segundo; Samuel Balula; Rui Figueiredo; José Pedro Pereira (Int. J. Online Biomed. Eng., 2013)