To many, crystals are pretty and mysterious rocks with magical properties. But real crystals are nothing of the sort. They are groups of atoms or molecules arranged in a highly regular way. Their study is important in many fields including chemistry, biology and pharmaceuticals. Dr Liana Vella-Zarb, Dr Rosalin Bonetta and Dr Daphne Attard explain to Francesca Vassallo why crystals are better than diamonds.
In 1913, Tommaso Vella published an arithmetic textbook in both English and Maltese called Aritmetica Bil Malti u Bl’Inglis. Dr Claude Bajada explores this intriguing book.
