Measurement history

[JohnFParticipant @johnf59703]

Some time back 12/24 months I saw an article about a young engineering student, female I think, spotting an instrument in a skip at a university [Sweden or Norway ??] rescued it and it turned out to be Johansson’s measuring tool/instrument for his gauge blocks.  Whilst searching, unsuccessfully, for this I came upon these two links the second one relating to micrometer origin I had never heard of — but then never looked !

https://www.lindahall.org/about/news/scientist-of-the-day/carl-edvard-johansson/

https://www.lindahall.org/about/news/scientist-of-the-day/jean-laurent-palmer/

Just thought it mat interest others

John

[Chris CrewParticipant @chriscrew66644]

Very interesting. Especially the miniature architect’s classroom and the tool chest. Incidentally, I would suggest that as Jean-Laurent Palmer was French that his name is more properly pronounced as ‘pahl-merre’ rather than the anglicised pronunciation ‘parmer’, but I could be wrong.

[noel shelleyParticipant @noelshelley55608]

Thank you ! very interesting. Noel.

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