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TIL Stilton blue cheese is known to frequently cause odd, vivid dreams

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OopVg TIl the US strategic petroleum reserves are stored in underground caverns carved out of salt. Salt does not react with the oil and is self-healing. The plastic behavior of salt will cause it to naturally close fractures or gaps and prevent any leakage.
XP6D TIL Alexander the Great’s will called for the “transplant of populations from Asia to Europe and in the opposite direction… to bring the largest continent to friendship by means of intermarriage and family ties”
8e1YX TIL that reindeer eyes change colour through the seasons. Their eyes are gold during the summer and blue in the winter. This change helps them see better in the varying levels of light in their Arctic habitat.
XmYr TIL there is a Japanese art of fixing broken pottery with gold called Kintsugi or Kintsukuroi. The style embraces the flaws and imperfections of the artifact as well as highlights them.
j6oyj TIL Hydrogen-alpha solar telescopes work thanks to an optical device called an etalon, made up of two semi-reflective, optically flat plates. The flatness of the plates and how parallel they are defines the quality of the view of the Sun, which has an ‘orange peel’ appearance through the telescope