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Very interesting news - the first SI prefixes since 1991 were announced today at the General Conference on Weights and Measures.
➡️ quetta = 1030, Q
➡️ ronna = 1027, R
➡️ ronto = 1027, r
➡️ quecto = 1030, q

For example the mass of an electron is just under one quectogram (1qg).

🔗 The resolution (in French) is available here bipm.org/documents/20126/64811

@filipw That's amazing! I honestly only knew til exa/atto. Does the document say the reason for adding further prefixes? I'm thinking because of the scale of computing power but maybe there are more?

Filip W

@bojohn apparently it's driven primarily by data science but I can imagine it useful in other areas such as astro- or quantum physics were things are very large or very small. There is more context in today's article at Nature nature.com/articles/d41586-022

www.nature.comHow many yottabytes in a quettabyte? Extreme numbers get new namesProlific generation of data drove the need for prefixes that denote 1027 and 1030.

@filipw interesting, thanks for the reference!