20:22:14	 From  José De Almeida Batista : Professor tenho que me ausentar uns 20 minutos!
20:34:05	 From  Sociedade Brasileira de Metrologia : https://www.youtube.com/watch?v=-CIoih2QLQw&t=8s
20:34:39	 From  Sociedade Brasileira de Metrologia : https://www.youtube.com/watch?v=6t_ACDM9aqI&t=3s
21:00:21	 From  José De Almeida Batista : https://vimeo.com/337649990
21:00:33	 From  José De Almeida Batista : Link a meta.