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2 posts

Bus doors

Bus doors should always open outwards. It’s just logic: inwards-opening doors take up space that could otherwise be filled by passengers

 No comments   2019   buses   design   standards

A better abbreviation for sine & cosine

For some weird reason the abbreviation for sine is sin and cos for cosine. This is madness compared to the beautiful and logical abbreviation for tangent and cotangent

 1 comment   2018   abbreviations   maths   standards