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There is a diamond that changes colour when it’s cold

A diamond has been discovered that changes colour, when exposed to extremely cold temperatures. At -196 degrees centigrade, the temperature at which nitrogen liquid boils, it is known as a “cryogenic diamond,” and it changes colour from grey to yellow. According to New Scientist, this was discovered by researcher Stephanie Persaud of the Gemological Institute …

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Exhibition on Nicholas Poussin and dance at the National Gallery thumbnail

Exhibition on Nicholas Poussin and dance at the National Gallery

Underground station: Charing Cross When: from 9 October to 2 January 2022 Tickets Nicholas Poussin is not a painter particularly known for his easy-to-understand paintings. Its  work was considered intellectual, difficult and often cold. The National Gallery wants to change this perception, presenting this previously unanalysed area of ​​his work in the warm and accessible …

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