https://lajoiedentreprendre.com/2018/09/07/developpementpersonnel/
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« Every 26 seconds for the last 60 years seismologists have detected a ubiquitous pulse emanating from deep inside the Earth. The debate over the cause of this mysterious “microseism” has gone on for decades and produced several cogent hypotheses, but scientists still don’t know decisively what’s behind the phenomenon. »
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