metric vs imperial systems

[dan610324]

yeah this sure was too much for me

ok ok ok ok Im convinced , the imperial system is superrior to the metric  

is it enough now  

[dan610324]

30 replies in 4,5 hours
that must be a new record

should it be 4,5 or 4 1/2 

[barefiel76]

If it's a record it should be a butt load.. Just my opinion.

[gulfcoastblackpowder]

30 replies in 4,5 hours
that must be a new record

should it be 4,5 or 4 1/2 

It should be 9/2 or 4.5.   What's up with this "," stuff?  Do you pause or have another thought when you go to the other side of the decimal?

[dan610324]

its almost 5 am here now , so I dont even try to think now

goodnight guys

[seacoastartillery]

     Hi, Mike here.  Tracy has been over here for almost 2 hours now trying to prove that one Liter = one Quart by doing experiments with bottles in My liquor cabinet.  He has mostly been muttering and I can't make out all thje details.  He poured from a liter bottle into a quart bottle, but he seemed upset that there was always some overflow.  At first he licked up the excess from a little saucer that he placed under the quart bottle which would always overflow.  As the experiment got into the later stages, he just lapped up the overflow from the countertop and was always saying stuff like, it cant be, it cant be, but how do they fillem upand stuff like that.  He finally drifted off into the shop i found the back door open an him laying face down on the dark lawn.  I guess the experiment is over now.

Mike

I took one photo of his empiracle evidence gathering.

[RocklockI]

Heee Hee  Mike he needed to be taken out face down two hours ago when he explianed to me his ...experiment on the phone .

I'm not knocking him and I wish I was there to help the cause . I am a scientist at heart as well .( I'm sorta guessing you should be able to spell scienatist to actually be one ) but I try !


When he told me about the overflow into the saucer and how he decided to ........well drink it  . Over and over and over agian .He did duty .


Gary

Write something backward on his forehead in sharpie .

[subdjoe]

lets take temperature for example
celsius is very logical , at least for me who are used to it
its all about water ,
0 degrees and water freeze
100 degrees and water boils

is there any similar logic explanations for the farenheit system ??
when an temperature is mentioned here I dont have a clue if its warm or cold

Why, yes, there is: According to a journal article Fahrenheit wrote in 1724,[5]  he based his scale on three reference points of temperature. The zero point is determined by placing the thermometer  in brine: he used a mixture of ice, water, and ammonium chloride, a salt. This is a frigorific mixture which automatically stabilizes its temperature at 0 °F. A mixture of ice and water stabilizes, either freezing or melting at 32 °F,[6]  though Fahrenheit did not use this point in defining his temperature scale. The third point, 96 degrees, was the level of the liquid in the thermometer when held in the mouth or under the armpit of his wife. Fahrenheit noted that, using this scale, mercury boils at around 600 degrees.

Later, work by other scientists observed that water boils about 180 degrees higher than the freezing point and decided to redefine the degree slightly to make it exactly 180 degrees higher.[5] It is for this reason that normal body temperature is 98.6 on the revised scale (whereas it was 96 on Fahrenheit's original scale)

yard or meter , well that doesnt matter if it wasnt for that very unlogical way to split it in pieces
the metric is very logical and easy to use, 1 kilometer is 1000 meters
1 meter is 10 decimeter
1 decimeter is 10 centimeter
1 centimeter is 10 millimeter

how many yards is it on one mile ?? and why ??
why is 3 feet 1 yard ??
why is it 12 inch on 1 yard
why is the fractionals used when its almost impossible to use them for calculations ??

The mile is base on the two step Roman military pace.  One thousand paces make up a mile (which is why it is a mile - from the Latin for 1000).  1760 yards, or 5280 feet, to the mile.  Why the fractional divisions for construction?  Let's see you, using straight edge and dividers, divide something into 10 even parts.  It is fairly easy to divide into 1/2 (.5), 1/4 (.25), 1/8 (.125), 1/16 (.0625), 1/32 (.03125) and so on. Tedious, but easy. But into 10 with those simple tools?  No thank you.

Hard to say on what the inch is based. In English law it was codified as the length of 3 barley corns, well dried an laid end to end.  And 12 of these inches made up a foot.  As an aside, our shoe sizes are based on barley corns still.  A difference of one shoe size is is a difference of 1/3 of an inch.  I forget what the base size is that those are added to.

[subdjoe]

That brings to mind another standard measure.  A bottle of distilled spirits used to be called (and still is by some of us curmudgeons) a 'fifth.'  That is because it was 1/5 of a gallon (4/5 of a quart - and a quart is called a quart because it is 1/4 of a gallon).

     Hi, Mike here.  Tracy has been over here for almost 2 hours now trying to prove that one Liter = one Quart by doing experiments with bottles in My liquor cabinet.  He has mostly been muttering and I can't make out all thje details.  He poured from a liter bottle into a quart bottle, but he seemed upset that there was always some overflow.  At first he licked up the excess from a little saucer that he placed under the quart bottle which would always overflow.  As the experiment got into the later stages, he just lapped up the overflow from the countertop and was always saying stuff like, it cant be, it cant be, but how do they fillem upand stuff like that.  He finally drifted off into the shop i found the back door open an him laying face down on the dark lawn.  I guess the experiment is over now.

Mike

I took one photo of his empiracle evidence gathering.

[GGaskill]

Some time ago, the wine and spirits industries converted from fifths to 750ml bottles, slightly bigger than a fifth.  And then there is the two liter plastic soda bottle. 

So even though the units are metric, the highly vaunted factors of ten don't bring much to the party.

[carronader]

I remember Whitworth spanners (wrenches)  were in fractions   damn useless   could always find one or two in peoples toolbox   were only good for hammering onto a rounded nut or bolt. Always big , heavy made. 

[Cat Whisperer]

Once again, deviating from the derivation of these systems, it is the personal experiences - the  mathematical rules of thumb that are important.

An Episcopal friend of mine used to say, 'where ever you find 4 Epiccopalians you'll find a 5th'.

If you need 100 marbles but only have 98, how far off your marbles are you?

'its almost 5 am here now , so I dont even try to think now' leads to the programmers rule of thumb: when you see the sun coming up through the window you know it's late.

And now we are stuck with: is 17mm closer to 3/4 or 13/16 ?

[Terry C.]

17mm = 0.669"
3/4" = .750"
13/16" = .813"

Neither 3/4" or 13/16" is even close to 17mm (but to answer your question: 3/4").

19mm (.748") wrenches and sockets are used interchangeably with 3/4", so much so that many combination sets do not include 19mm.


11/16" = .688"
Much closer to 17mm.

[subdjoe]

So I can double patch a 17mm roundball and use it in a Brown Bess. Or single patch it if the bore is somewhat foul.

17mm = 0.669"
3/4" = .750"
13/16" = .813"

Neither 3/4" or 13/16" is even close to 17mm (but to answer your question: 3/4").

19mm (.748") wrenches and sockets are used interchangeably with 3/4", so much so that many combination sets do not include 19mm.


11/16" = .688"
Much closer to 17mm.

[RocklockI]

What about 'Arshins' I have a rifle the sight graduated in them .

Gary

[Cat Whisperer]

17mm = 0.669"
3/4" = .750"
13/16" = .813"
Neither 3/4" or 13/16" is even close to 17mm (but to answer your question: 3/4").
19mm (.748") wrenches and sockets are used interchangeably with 3/4", so much so that many combination sets do not include 19mm.
11/16" = .688"
Much closer to 17mm.

Exactly my point.  I was up on it more when I had my 1964 MGB - which used both systems of measurement - one for the engine, one for the body.
 

[carronader]

Gary   you sure this gun is not for killin Aliens      the 'M' has proly been rubbed off.

[seacoastartillery]

     Gary,    If you really have an 1891 cannon with sights graduated in Arshins, you are very fortunate, indeed.  Almost all of these were converted to the metric system starting in 1917.  If your rifle was made after 1916, it has sights with metric grads.  One Arshin is equal to 28 inches or 711 mm, (711mm/25.4mm=27.9920").  Mike's version of this Russian cannon, (7.62mm x 54mm, rimmed) is the vaunted, Sniper Model for which he forked out big bucks, proving himself, beyond a doubt, to really be a dufuss.  It gets 6" to 8" at 100 with careful handloads or surplus ammo. And HE has a scope!!  I said to him,  "Ah, say, Mike do you think that you could get a grapeshot load into that rifle??"    

Tracy

[grymster]

We are converting to metric..... slowly... inch by inch.

[KABAR2]

Now Mike with Tracy lapping up the overflow he would have metabolised
the overflow, has anyone tried to estimate how many kelvin units the amount
he injested would make? or estamate in any other thermo units?

[grymster]

Many years ago when I was working out on the shop floor, my supervisor brought me a job and said "Do everything in metric! The drawing is in metric, your machine's controller can be switched to metric mode, we have metric tooling and metric inspection equipment. Don't even think in inches! Got it?" I said, "Yeah, I got it..... now take this 3/4" plate stock out of here and get me some 20mm!" 

[Cat Whisperer]

When 2x4's 2x6's etc. show up in metric, we're there.
Most large appliances are there now (at least dual-dimensioned).

So, how many kg is a 24 pounder?

[Zulu]

When 2x4's 2x6's etc. show up in metric, we're there.
Most large appliances are there now (at least dual-dimensioned).

So, how many kg is a 24 pounder?

10.9090909............

[Double D]

When 2x4's 2x6's etc. show up in metric, we're there.
Most large appliances are there now (at least dual-dimensioned).

So, how many kg is a 24 pounder?

Aren't they metric already, they neither 2 or 4.

[subdjoe]

If it's a record it should be a butt load.. Just my opinion.

If not a butt, at least a hogshead, or a firkin.  But assuredly not a kilderkin.

[RocklockI]

Tom put the Dragon on the spot with this question the next time you need to needle her .

The Ruskies used it .

[Soot]

Aren't they metric already, they neither 2 or 4.

2x4s are 1.75 x 3.5 in. They are rough cut at 2" x 4" then planed to final dimensions.
I think most plywood is metric now.

[GGaskill]

The plywood I see is still inches, though not in small denominators.  What used to be 3/4 is now 23/32, 1/2 is now 15/32.  Seems like they are scrimping on thickness to lower price.

[dan610324]

whats the difference between 1/2" and 16/32" ??

[Zulu]

Aren't they metric already, they neither 2 or 4.

2x4s are 1.75 x 3.5 in. They are rough cut at 2" x 4" then planed to final dimensions.
I think most plywood is metric now.

Soot,
2 X 4's are 1.5" not 1.75"
 
Zulu