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Periodic Videos on Twitter: "The Prof showed off his latest periodic table tie today... https://t.co/IIt4emgEZy" / Twitter
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![Periodic Videos on Twitter: "A bonus tour of The Prof's periodic table tie collection for Patreon supporters is coming this week! ;) https://t.co/0j4GfP3WSM Plus a great new video about Tin for everyone. Periodic Videos on Twitter: "A bonus tour of The Prof's periodic table tie collection for Patreon supporters is coming this week! ;) https://t.co/0j4GfP3WSM Plus a great new video about Tin for everyone.](https://pbs.twimg.com/media/DkjPSV-XsAEZp_p.jpg)