CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble ...

Duo, the green cartoon owl mascot for language learning app Duolingo, has died, and singer Dua Lipa is grieving. The brand announced Duo’s passing on Tuesday, writing in a cheeky statement on th ...

Riad Sattouf’s saga of his parents’ failed bicultural marriage, with its harsh depiction of life in rural Syria, has become a literary sensation. By Richard Fausset Richard Fausset reported ...

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This is a recently acquired accoutrement that has not gone unnoticed by fans since he embarked on a publicity tour for his new book, The Sirens’ Call, about how tech companies have precipitated ...

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Skimmed milk has a little more calcium than semi-skimmed, which in turn has a little more calcium than whole milk. The reason is simply that as the fat is removed, the watery proportion of the ...

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When freshly precipitated it dissolves in ammonia, but by exposure to the light the solution gradually decomposes, becoming gradually blue and then colorless, but when fused with a glaze on ...

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The two main forms of calcium supplements are calcium carbonate (calcite) and calcium citrate (Citracal). There are other forms of calcium used in supplements, such as calcium gluconate and calcium ...