[jobigoud]

> 1000mph (1,674.4km/h)

Could we all agree to use a space (or nothing) as the separator for thousands? In French culture this is read as less than 2 km/h.

[Frozenlock]

Right:

"A space should be left between groups of 3 digits on either the right or left hand side of the decimal place (15 739.012 53). In four digit numbers the space may be omitted. Commas should not be used."

http://www.npl.co.uk/reference/measurement-units/si-conventi...

In addition, put the odd unit in parentheses, not the SI one.

> 1 674.4 km/h (1000 mph)

[unexpected]

I would expect a book written in French to follow French conventions, unfortunately, in English (American), a space would read as very confusing!

[germanier]

The space is actually recommended by international scientific convention (as it is the least confusing option) and also required if you follow the (American) AMA style.

[speps]

It's a next generation book, it should understand my locale and translate units automatically. How about that?