EV CHARGING AND FUSE

[ericmark]

mm or metre the

OK was not watching my spell check, or cheque! Why can't we have phonetic spelling like with Welsh, just 27 phonetic sounds. Even then, the local heritage railway got it wrong, W&LLR instead of W&LlLR as Ll is one letter in Welsh.

 

[ebee]

Ll is one letter in Welsh

Oh no it isnt - it cant be.
It would be akin to saying that a Tomato is a Vegetable in America , no it is not, t is a Fruit no matter what any legal definition might be or not be.

 

[ericmark]

ch, ff, and Ll are all considered as one letter. There is no J so wonder where all the Jones came from?

 

[ebee]

I was pulling your leg Eric as "Considered as one letter" rather than actually "being one letter", feel free to pull my leg against some of my statements too - actually I would be offended if you did try to catch me out now and again mate

 

[morqthana]

1) I think we ought to trust Eric on matters Welsh.

2) [DISCLAIMER - I am not a linguist]

I have no problem with digraphs treated as single letters, having a distinct pronunciation, having a separate place in the alphabet:

a, b, c, ch, d, dd, e, f, ff, g, ng, h, i, j, l, ll, m, n, o, p, ph, r, rh, s, t, th, u, w, y

and collated accordingly, so that, for example, fy comes before ffrwyth in the dictionary

being called "one letter".

In other languages they might use diacritics to indicate pronunciation - in Welsh they use digraphs.

The German 'ß', e.g. Straße is printed as 'ss' when 'ß' is not available - Strasse, but that's not the same as Welsh - 'll' is not used in place of a single Welsh character which modern typography cannot easily accommodate - it's a different letter of the Welsh alphabet in its own right.

[/DISCLAIMER]

 

[morqthana]

ch, ff, and Ll are all considered as one letter. There is no J so wonder where all the Jones came from?

There is a J now.

But according to Wikipedia 'Jones' represents an anglicisation of the Welsh patronymic ap Siôn.

 

[SUNRAY]

A unit of power is the Watt, and a unit of energy is the Joule, and the idea of having two times which cancel each other out and leave us with a unit with time in the name which has nothing to do with time seems rather confusing. I know working with units of 3600 Joules means we have smaller units, and gets us back to the metric idea of not having 4.184 or 60 or 24 or 365 etc, which are there because that's the way the world works, and has done for 1000s or years.

We have two units of energy in the ISO metric system the Joule and the calorie, the erg was dropped because it is 10 to the 7th not 6th, same way as we no longer have the centimetre, we only have the mm and meter.

With the demise of the BTU we clearly needed to get a replacement with small numbers, and yes it may seem to make the maths easier to have kW and kWh, but just as easy to have a kW/s which is of course a kJ so not a clue why we don't use the proper units, I had same problem going to do an 'A' level, where they used cm, and one has had it drummed into one, mm or meter the cm does not exist, and there it is on an exam paper.

AFAIC the cm has not been withdrawn from service, nor the hm or dm.

I fully accept many of them have fallen into disuse by some but cm is very much still in use in some industries

 

[ebee]

There is a J now.

But according to Wikipedia 'Jones' represents an anglicisation of the Welsh patronymic ap Siôn.

Bah Ghum! its all more complicated than I thought!

 

[morqthana]

AFAIC the cm has not been withdrawn from service, nor the hm or dm.

I fully accept many of them have fallen into disuse by some but cm is very much still in use in some industries

It's interesting that with land areas, no matter how big, if they aren't into sq miles/sq km/Waleses, it's always hectares, never ares.

 

[morqthana]

Why can't we have phonetic spelling like with Welsh, just 27 phonetic sounds.

Phonetic spelling based on North Wales pronunciation, or Southern?

 

[robinbanks]

probably

It's interesting that with land areas, no matter how big, if they aren't into sq miles/sq km/Waleses, it's always hectares, never ares.

Probably because an are isn't usefully large, though it's reasonable for average sized building plots

It would also be so easily confused with "are" (present tense plural of "be") in written form/"air" in spoken form that I guess it naturally falls out of use..

Non-thousand multipliers seem to be less common universally, though India enjoys a lot of popularity for lakhs and crores

 

[ebee]

I enjoy the usage of Groats if that is of interest to anyone

 

[morqthana]

A unit of power is the Watt, and a unit of energy is the Joule, and the idea of having two times which cancel each other out and leave us with a unit with time in the name which has nothing to do with time seems rather confusing.

The 'hour' in kWh has everything to do with time.

Power and energy do not have the same dimensions.

Would it help if the next new EV to hit the market was described by the maker as having a 250KgKm²/s² battery? Probably not, IMO.

250MNm might, as that at least relates to a common measure of a vehicle's performance, but then we risk straying into the land of common unknowns where the Imperial equivalent of torque specified in Nm is not ft.lb it is lb.ft, and the "pound" there is not weight, it is pound force.

Waiting now for a car maker to specify that the tyre pressure should be 200kPa...

We have two units of energy in the ISO metric system the Joule and the calorie, the erg was dropped because it is 10 to the 7th not 6th, same way as we no longer have the centimetre, we only have the mm and meter.

With the demise of the BTU we clearly needed to get a replacement with small numbers, and yes it may seem to make the maths easier to have kW and kWh, but just as easy to have a kW/s which is of course a kJ so not a clue why we don't use the proper units, I had same problem going to do an 'A' level, where they used cm, and one has had it drummed into one, mm or meter the cm does not exist, and there it is on an exam paper.

Well we "don't use" CGS any more, we use SI, which is a superset of MKS. But that doesn't mean that the centimetre doesn't exist - how can it possibly not? It may not be a preferred measure, but so?

I'd never thought though about the fact that I've never seen cΩ, cA, cV etc, we go straight from x10⁰ to x10 ̄ ³. Same on the way up, we go from x10⁰ to x10³, no decaVolts or hectoWatts.

Can't be a principled objection though, as we're perfectly OK with hectares.

 

[robinbanks]

For the most part I expect unit magnitude selection is based whatever leaves us with a convenient number of digits; using "mol" to describe the number of atoms on a chemical sample rather than a power ten in the 20s. Using AU to describe the distance to the sun but not to the shops. When it comes to parcels of land tradable, hectares probably more relatable than eg fractions of square kilometers.

That said, most the property I see for sale in France has its land area rated in sqm, and I mentally convert it to acres to make it mean something to me

 

[ebee]

As said, we tend to prefer useable combinations according to circumstances in that particular instance and there is no "one size fits all".
Horsey Coursey.

If I want to relate something at 19 shillings and thrupence ha`penny per hundredweight per lightyear than that might be good enough for my intended purpose at that particular time.