kg mass:
10³⁰
.
.
.
.
10²⁵
.
10²³
.
.
.
.
.
.
.
.
10¹⁴
.
.
10¹¹
.
.
10⁸
.
10⁶
10⁵
10⁴
10³
100
10
1
0.1
0.01
0.001
10¯⁴
10¯⁵
10¯⁶
.
.
.
.
.
10¯¹²
cell—
.
.
10¯¹⁵
cell—
10¯¹⁶
chromosome
.
10¯¹⁸
virus
.
.
.
.
.
.
.
10¯²⁶
I've been in the UK a decade plus and I still haven't learned what a stone is. 
-
-
It’s quite simple really, a stone is the mass equivalent of a yard (which is horizontal unless measuring vertical ale) and is the same as 13 pounds which divides nicely into 14 ounces.
- End of conversation
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