[VoIP] 2600 Dial Pulse

[Mark Rudholm]

windmill wrote:
> EE School? Would that be Electrical/Electronic Engineering school? 
> Suirely you did Physics at school in basic education.

Electrical Engineering.

It was 1982 and I was thirteen when I matriculated at
university, but despite that, yes, I had indeed been
dealing with "Hz" for some years prior to then, and
it was always "Hz" or "Hertz".  It wasn't until some point
in college that I have my first memories of seeing "CPS".

> As for when the transition occurred my recollection is somewhere 
> aroundthe late 1960s and probably coinciding with metrication which 
> officially commenced in 1967 in the UK. It was cps when I did my Physics 
> exams at school in 1969 but when I went to technical college in 1970 it 
> was Hertz.
> 
> brian
> 
> Mark Rudholm wrote:
>> Peter Duffield wrote:
>>   
>>> Hi Jayson
>>>
>>> The SI unit for frequency is the Hertz, which is named after the German
>>> physicist Heinrich Hertz.  The correct way to refer to it in writing is 
>>> 2600 Hz.  
>>>
>>> It meant so much more before they started naming International Standard units
>>> after notable people - cps or cycles per second was clear, concise, and to the
>>> point, and left nothing to the imagination.
>>>     
>> Indeed, when was that?  When I went to EE school in the 80s
>> the transition to Hertz had already happened.  In fact, I didn't
>> see "CPS" until a while later.
>>
>> Tangentially, I thought it was amusing to see people write
>> 1 Hert or 1 Megahert, as if "Hertz" was the plural of "Hert".
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