The Atoms from a long-dead Supernova are what make you and me today

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p.11 To sense the universe at all scales, from the vast distances to the stars down to the unimaginably small distances within the atomic nucleus, requires that we expand our senses by the use of instruments. Telescopes enable us to look outwards and microscopes reveal what things are like at small distances. To look inside … Continue reading The Atoms from a long-dead Supernova are what make you and me today

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December 27; Powerful magnetic forces in our body

Photo by Xaotherion   p.2 An atom is the smallest piece of an element that can exist and still be recognized as that element. Nearly all of these elements, such as the oxygen that you breathe and the carbon in your skin, were made in stars about 5 billion years ago, at around the time … Continue reading December 27; Powerful magnetic forces in our body