Why are dimes smaller in diameter than a modern penny??

But why in the world would you need a "reference" coin?

And the "reference" for the US monetary system is the dollar. It was set as the standard and everything is multiples or fractions of it

 

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You said it yourself, "everything is multiples OR fractions of it (the dollar)". There is "dilemma", in other words, "contradiction" in this. A standard or the reference does not accept this (multiples) OR that (fractions). In measurements, eg, in length measurement, it can be done. For example, in "inch-feet-mile" system, you can say "feet" is the standard/reference and you can say the others can be multiples (mile) of the feet or fractions (inch) of the feet. You can also add more multiples (eg, kilo-mile) and more fractions (eg, milli inch). But, such things can not be done in the money. When a figure (number, fraction) goes smaller than the one cent it becomes no more money. Therefore, deciding/determining money is not the dollar, but, the cent. Therefore, the "reference" for the US monetary system is not the dollar, but, the cent. Every amount of the money in the US can NOT be counted in terms of the dollar (eg, 2,71Usd) while every amount of the money can be counted in terms of the cent (eg, 271Cents.) Notice, the countability here requires natural/integer number attached to the name of currency. This is possible only with the Cent for any amount of the money. You can count the fractions (eg $2,71), only on the paper. There is no fractional physical money. Only physically countable money is the cent coin. Therefore, the cent is the reference money/coin.

 

You really do need to read more. The basic unit is, and always has been, our dollar, despite what you may believe.

 

This (calling the dollar as "basic unit" of US currency) is one of common errors, a major error in the mainstream. It is an error not only being done in and by the US, but, in all countries, by all states in the World. It has nothing to do with the belief. It is purely scientific.

The Dollar (or Euro or Lira, etc) are NOT the "units". These can NOT be counted "physically" UNLESS they are changed into their real "units" which are the cent or penny or kurus or agora or kopek, etc. The only physical money which is countable by integer numbers is the cent (or its equivalents; penny/kurus/agora/kopek/etc.)

 

That's just because you have DECIDED, without any valid logical reason, to include the non-essential requirement of integer number counting, which is purely something you sucked out of your own thumb, and not useful or important in any way whatsoever.

 

I'll prove.

Take some money out of your pocket and put them on the table now.
It should be "any" amount of money. So, I'll tell you how much money.
Ok. I am giving the figure now. $125,91...

Now... IF the Dollar is the Unit, then, you will NOT need any other other than the dollar to put $125,91 on the table.
.
.

waiting
.
.

You couldn't do it, could you? No.
You can NOT do it only with the dollar.

BUT, you can do it for "any" amount of money with the "cent"... That's the real unit.

 

Who says that is a logical requirement of the exercise? You? I fundamentally disagree! It's non-essential puffery added where it has no business being. I buy something a couple of times per week that is price denominated in mils, not even cents - MILS!!! That little 9 at the right of the gasoline price board? That's 9 mils pal. Several other things are denominated in mils, too. Just because you are unaware of something doesn't make it any less true.

Canada no longer has a cent. Neither does Switzerland. Neither does Australia. Yet all conduct commerce as if they did, UNTIL the end of the transaction. What monetary tokens exist or do not is utterly irrelevant, as you yourself are frankly becoming, sir.

 

You said "unit". You said "the dollar is the basic unit".
To prove this is your business.

I did my work about the proof for the cent.

 

I'm aware of what's happening in the US and around the World. There is a hot topic here
https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=297132&whichpage=4
where people from different countries, USA, Canada, Australia, Norway, Sweden, etc are talking about such things around the World. There, "mill" is also mentioned.

"Mill", for ex, in gasoline gallon price in the US, $2,81,99... (99 mills).
Such a price label is "illegal" (hello "sallent", you are attorney). If it is not illegal, it is illogical.
Because. Lets say I bought a gallon of gasoline. If they don't give me 1mill back, I can sue and I can easily win.
However, if such a figure is not on the price label, but, if it is only on the paper (like it happens in the calculations), it is not illegal.
According to the laws in the US, there is NO "mill" money. IT is just in calculations on paper. In calculations, such figures too can be seen: 2,43495065... (eg, in bank compound interest calculations), but, at the end of calculations, it is rounded to the cent, 2,43. (there are posts about such things also in "coin with/out numerals" thread on this CT Chat forum.)

Since no physical "mill" money exists it is not necessary to talk about it. Dollar physically exists, but, it is not the unit. IF it is the unit as you too claimed like everybody has been saying, then, everybody should prove that the dollar is the unit. However, it can not be proved by anyone as the dollar is not the unit.

 

You have 125 units, a half unit, a quarter unit, a tenth unit, a 1/20th unit, a 1/100 unit.

 

Like everybody, your use of the word "unit" here is lingustics use rather than scientific use.

Ok, there are divisible units and indivisible units also in the science. For example, take "time". Theoretically, the time is infinitely divisible. It may be second, millisecond, nanosecond, etc etc. Therefore, we can call "second is a unit of the time." Notice, "a" unit of time, not "the" unit of time. In case of the money, this doesn't resemble to the time or to many other things. In case of the money, there is "the" unit and it is indivisible. Divide divide divide any amount of money, once you reach the cent, it is no more divisible. If you divide the cent further, it becomes no more money. So, while there is already a known indivisible unit in the money, it is nonsense to call divisible "dollar" as "unit". With your logic, I can also make quarter or dime or any other amount of money as "units" by using multiples or fractions, but, all such attemps including making dollar as unit complicate things unnecessarily. In the money, there is already an indivisible unit, the cent.

 

^ LOL! @Conder101

 

Your entire argument rests on this baffling assertion.

LOL. Tread carefully, though -- if you make a habit of buying (say) 1/3 of a pound of something that's priced at $1/pound, and paying with only 33 cents, maybe they'll sue you and "easily win"!

Seriously, do you think that none of us were taught about fractions and rounding in elementary school?

 

When I was a kid I had to walk about 1/4 mile from my house to the school bus stop. Across the street there was a gas station that had candy and drinks inside. If you asked the person behind the counter — his name was Harry Carson, owner of Carson's station — for one 10¢ candy bar he would collect 10¢, but if you asked for TWO candy bars, he would collect 21¢ with the extra cent for sales tax. Harry, himself, taught me to make two purchases to save the tax. That way I got a free candy bar after every twenty purchases!

I learned a long time ago that whenever I buy gasoline I should pump out exactly ten gallons. That way I get the pump to even out exactly as the last digit being a 9.

 

You're leaving money on the table by not squeezing in an extra drop to yield a price that's still rounded down to the 9. Or getting it to round up, then suing (because you could easily win).

 

Of course. But, no where in the World the "unit" of money is being taught. They teach dollar, euro, lira, shekel, ruble, etc as units of money, which is wrong teaching. Yes, of course, my assertion is based on "indivisibility" of the unit in the money. As I said, if there is an indivisible unit in a thing, all other assumed units are no more units. And, there is indivisible unit in the money and it is the cent.

As for indivisibility of $1/3 or 100cents/3, that you mentioned. It is a classical problem for centuries. Yes, it gives 33,3333333... but, it is a mathematical thing, can also be considered "price" thing, but it is not about the money itself. Mathematicans can keep studying those numbers. Here, lets narrow it to the money. Try to divide 1cent. It can NOT be divided by any number other than 1. When it is divided by 2 or 3 or etc, it won't be money anymore.

 

Yet another fully useful point goes wasted.

 

Like to see my half cent collection, sir? How about my two British quarter farthings? They are 1/3840 of a pound sterling. Please @ErolGarip , when you're in a hole and proving you're an idiot, the best next step is to stop digging. You are NOWHERE NEAR defining the basic unit, just the smallest current one in token form. BIG difference! Less than 10% of U.S. dollar money exists in physical form at all! Over 90% is electronic, RIGHT NOW! So how small is the current microprocessor fabrication size? 12 nanometers? That, I suppose, is your new basic unit of money, an electronic trace on a chip through which a couple of electrons can squeeze. Sheesh!

 

Meh, it was worth a try. Some people wonder if they'll ever need math in the real world, but a few decide they won't. The cost, to them, is incalculable.

 

I buy specialty meats at the deli counter in my supermarket. Oftentimes there is a young female behind the counter who does not know how to deal with orders that are just a portion of a whole pound, and I see looks quizzing me on how to figure this out on the scales that prints out your sales sticker. I learned a long time ago to NEVER ask for 3/4 pound of pastrami since no one knows how to slice this much. Invariably, I have learned to accept whatever they give me. The most interesting one came when I ordered a half-pound of Prima Della smoked turkey last week. The young lady came to the counter, plopping down 1.235 pounds of the stuff onto the scales, then looked at me and asked, "Is that right?" I just smiled and said, "It's close enough."