Paris – video of the operating Foucault's Pendulum in the Panthéon (匈牙利文). Pendolo nel Salone (页面存档备份,存于互联网档案馆) The Foucault Pendulum inside Palazzo della
pna.gov.ph. [2020-03-28]. (原始内容存档于2020-06-14) (英语). M 5.8 - 64km WNW of Pendolo, Indonesia. earthquake.usgs.gov. [2020-04-01]. (原始内容存档于2020-03-29). Indonesia