In every working day, from 18:30 (or 6:30 PM), I stay to talk on my Discord server: https://discordapp.com/invite/presura . Everybody can ask me questions. Buy "Fizica Povestita" (eng. "Chronicled Psysics") here: https://bit.ly/2YsKaAc Here you can help me on Patreon:   / cristianpresura  

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