Shame to see such (otherwise excellent) writing fraught with mistaken SI usage, as defined by the authoritative SI Brochure.[0] It's a small thing that makes any writing feel less credible.
Hopefully the author sees this post and can correct it. The author is using British English so I have preferred that convention. I include a second option which at least corrects any mistaken abbreviations, but the first option is always the correct version.
>tens or hundreds of Km
"tens or hundreds of kilometres" or "tens or hundreds of km"
Hopefully the author sees this post and can correct it. The author is using British English so I have preferred that convention. I include a second option which at least corrects any mistaken abbreviations, but the first option is always the correct version.
"tens or hundreds of kilometres" or "tens or hundreds of km" "30 kilometres" or "30 km" "10 nanoseconds" or "10 ns" "kilohertz to low megahertz" or "kHz to low MHz" "hundreds of milliseconds" or "hundreds of ms" "a few kilohertz" or "a few kHz"[0] https://www.bipm.org/en/publications/si-brochure/