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Takis, born Panayiotis Vassilakis, has spent 70 years making art out of magnetism, electricity and sound. Experience his explorations of an unseen world, including Electromagnetic Sphere (above), at Tate Modern in London from 3 July.
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Stranger Things 3 School鈥檚 out, adulthood nears, romance blossoms and evil evolves in the third season of Netflix鈥檚 loving and scary homage to Steven Spielberg, Tobe Hooper and the 1980鈥檚 sci-fi boom. From 4 July.
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The Documentary: The Superlinguists explores our gift of language. Imagine speaking 20 languages, or having to speak three or four to get through the day. On the BBC World Service on 2 July at 1:30 pm BST.