3 ms·
I am a non-engineer who has used mm/cm/dm/m/km all my life. For me, 1 km is not necessarily 1000 m, and 5 cm is not necessarily 50 mm. In everyday use using on
by eCa 11y ago
I am a non-engineer who has used mm/cm/dm/m/km all my life. For me, 1 km is not necessarily 1000 m, and 5 cm is not necessarily 50 mm.
In everyday use using only the smaller unit implies a precision that usually isn't there.
Millimeters certainly has its place, but so do centimetres.
- slyall 11y agoI remember when I was at school the first day of woodwork class (age around 10) we were told that all measurements were in millimetres. I don't think anybody had problems adjusting. It was just another thing to remember in class. Outside the class everybody used mm/cm/m/km as needed (nobody used dm where I lived).