[time-nuts] 15 ns vs. 15 nS

Didier Juges didier at cox.net
Tue May 22 09:26:04 EDT 2007

If I recall correctly, unit names based on proper names get an upper 
case (like Siemens, Joules, Curie and others), others don't get any 
respect (gram, calorie, meter and such)

So it would be correct that nS would be nano Siemens and ns would be 
nano second.

Having been on the western side of the pond for too long (people here 
could not care less about SI units, they drive on parkways and park on 
driveways anyhow), I got bad habits, sorry...


Magnus Danielson wrote:
> From: "Rob Kimberley" <rk at timing-consultants.com>
> Subject: Re: [time-nuts] 15 ns vs. 15 nS
> Date: Tue, 22 May 2007 09:05:19 +0100
> Message-ID: <!&!AAAAAAAAAAAYAAAAAAAAAOYAZyOzV8ERq+LmT45ypI7CgAAAEAAAAMulssSy+kVKm081B3otcD4BAAAAAA==@timing-consultants.com>
> Rob,
>> As Seconds are a fundamental unit of the SI system, shouldn't the "S" be
>> upper case?
> No. There SI system has a few illogical turns in it, but they are fixed and it
> is just there to learn. Also, soon only second is the fundamental unit in the
> SI system, so all we have to agree on is the International Second. :)
> Cheers,
> Magnus
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