What a measurement needs
What a measurement needs
A measurement always needs a number and a unit. Writing "10" alone is incomplete because it could mean 10 s10 \, \text{s}10s, 10 cm10 \, \text{cm}10cm or 10 Bq10 \, \text{Bq}10Bq.
What a measurement needs
What a measurement needs
A measurement always needs a number and a unit. Writing "10" alone is incomplete because it could mean 10 s10 \, \text{s}10s, 10 cm10 \, \text{cm}10cm or 10 Bq10 \, \text{Bq}10Bq.