What is a Milimeter?

I'm confused between centimeters and milimeters

Looking at that pic, sub-divisions of inches are too large if you want to get any sort of accuracy.

...........your argument about divisibility of ten is a bit off........

I don't see why there is a problem with divisibility.

Chumly wrote:

Quote:

But for the Canadian government to criminalize the use of Imperial measurments.........then in 2005 to start teaching it in schools again because kids are getting all messed up, what kind of freak-show is that?

I must have missed this part of it- criminalize the use of a certain type of measurement? That seems a little over the top. I'm surprised- and I'm not being sarcastic- really surprised that what I've always taken to be kind of an easy-going, laid back sort of government like Canada's would make such an effort to standardize a system and people in a system to the point that they'd make it criminal to do something another way.

But there needn't have been any switch for the kids to get messed up with measurement. I've had kids in fourth and fifth grade - and I'm not talking learning disabled kids- I'm talking kids of normal intelligence and above- who don't know there are twelve inches in a foot. Even when I say, "Well, how many inches are there on a ruler?" they usually answer ten. And these are kids who have lived in America with our imperial measures their whole lives.
And one mom came to me and said that her twelve year old son did not know there were twelve months in a year, but it couldn't have been his fault - it was that he wasn't being taught that particular measurement.
I assured her, that at least somewhere in his seven years of schooling it had been taught- for instance, had he gone to kindergarten? Yes. Did they have circle time everyday in front of the calendar. Yes.
Does he know when his birthday is? Christmas? Summer vacation?
"Yes, of course he does", she answered.
There's a difference between someone having something taught to them and that person being willing to listen and learn it. Learning is not a passive activity.
And then I asked her if she had any calendars in her house. Yes.
Maybe she could sit down with him for twenty minutes and leaf through one.

What I'm saying is, don't take the active responsibility of learning away from these kids because of a mistake the government made. If these kids want to figure it out - most of them can- even if the schools and governement don't do their job correctly.

But again, being able to count the millimeters is another story. That's why I'm with you on the ruler and tape measure stuff.

Montana wrote:

I look at a rular

It's a ruler, not a "rular".

contrex wrote:

Montana wrote:

I look at a rular

It's a ruler, not a "rular".

So, you gonna follow me around and correct my spelling now?

The correct question, is not "when would you need to divide a centimeter"

The correct question is "when would you need an increment as small as a centimeter?"
Obvious answer: you do not need a visualized increment as small as a centimeter, as discussed there are a number of "tricks" to circumvent this apparent lack of accuracy! In fact the building trades rely on this "built-in play".

The better building trades people tend to gravitate to larger commercial projects, industrial and larger marine projects. That's where the higher skill sets are generally to be found, along with the better paying more demanding positions.

Now with finishing carpentry you can deal with such increments as 32nds and 64ths, but that aspect represents a small fraction of the total of the building trades, and sadly even there I have seen many carpenters using caulk in lieu of 32nds - 64ths precision.