large matchbox full of interstellar gas would contain about a hundred atoms

Categories: Comparisons

An example of quotidian comparisons used to explain science:

"The interstellar gas is certainly extremely rarefied. On average over the whole galaxy a large matchbox full of it would contain only about a hundred atoms. This my be compared with the material in a star, like the Sun, where on average a matchbox full would contain about a hundred million million million million atoms."

Fred Hoyle (1960) The Nature of the Universe (Revised ed.), 1960

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Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.