How do I know if my ruler is as long as it says it is?

[Renew Deal]

[LiberalElite]

1. Worry about something else please. nt

[Orrex]

2. Has it ever lied to you? Why are you so suspicious? What are you hiding?

[Dr. Strange]

5. Why are you always defending the rulers?

Your authoritarianism is unseemly.

[Renew Deal]

26. "defending the rulers"

[Orrex]

32. Don't encourage him

You'll only make it worse.

[Renew Deal]

25. That's what I'm trying to figure out.

The question is what is it hiding?

[Wounded Bear]

3. Easy, get it calibrated...

they have labs for that kind of shit.

[Orrex]

6. My neighbor has a chocolate lab

[Wounded Bear]

12. They're OK...

but traditional blonde labs are better for the purpose. They're golden, you know.

[In_The_Wind]

15. !

[Orrex]

24. Well played.

[Thor_MN]

4. I, for one, welcome our new... er... nevermind

[bigwillq]

7. Ask Trump

I heard he's good at, um, measuring things.

[rurallib]

21. his hands are specially made to measure small things

[Solly Mack]

8. The ruler you can trust. It's the tape measure that lies.

[Renew Deal]

27. Agree

Tape measures are some sort of shape shifting quasi measuring device

[intrepidity]

9. Measure it

Sure, you need another ruler that you trust though.

[Renew Deal]

28. And that's where my dilemma begins

[jmowreader]

10. There's only one way

You've got to use a Craftsman model 1019 laboratory edition Signature Series torque wrench - the kind used by Caltech high-energy physicists and NASA engineers. And a split second before the torque wrench is applied to the ruler, it needs to be calibrated by top officials of the state and federal departments of weights and measures to be dead-on balls accurate. (It's an industry term.) Do you have the certificate of validation?

[Ptah]

14. Ah, the yutes these days.

[Iggo]

17. Did you say "yutes"?

[ohnoyoudidnt]

18. What is a yute?

[Iggo]

19. Heheheh.

[Ptah]

20. “Imagine you’re a deer.

“Imagine you’re a deer.
You’re prancing along. You get thirsty.
You spot a little brook.
You put your little deer lips down to the
cool, clear water.

BAM!

A f—in’ bullet rips off part of your head!
Your brains are laying on the ground in little bloody pieces!
Now I ask you: Would you give a f— what kind of pants
the son of a b—- who shot you was wearing?!”

[DawgHouse]

22. One of my favorite movies!

[trof]

39. Marissa!

[GreydeeThos]

11. Compare it to something of known length

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Just whip it out

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and stick the ruler

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up next to that Big Ten Inch






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RECORD!

[Major Nikon]

34. ...

[madamesilverspurs]

13. ...

[Kali]

29. BWAHAHA!!!!

[cyberswede]

30. OMG - those hands!

[tblue37]

36. I wonder if they are related:

https://www.bing.com/images/search?q=wiig+small+hands&id=8821A8CDE4DDA5A3BC558473672712C9DDA85A27&FORM=IQFRBA

[hunter]

16. Hold a flashlight up to one end, turn it on, and measure how long it takes the light to get...

... to the other end. A foot is a little over a nanosecond.

[sir pball]

31. First correct answer...

Granted the basic SI definition is for the meter, but simple arithmetic can fix that.

The metre is defined as the distance travelled by light in a specific fraction (1/299,792,458) of a second.

Hope your stopwatch is accurate!

https://en.wikipedia.org/wiki/Metre

[A Simple Game]

37. That would have been fine 2 days ago but now we're on daylight savings time!

Back in the day you could tell with a dollar bill which is supposed to be 6 inches long, but everyone knows a dollar doesn't go as far as it used to.

[hopemountain]

23. hold it up to a mirror

if it is evil and lying it will not reflect.

[BlueCollar]

33. look for the NIST specification

Stamp on the ruler....

All of mine are certified accurate are 20 degrees centigrade

[jakeXT]

35. Go to Paris ?

[So Far From Heaven]

38. You don't because it lies.

No matter what it says, it isn't the truth. Some dead dude from Breaking Bad named Heisenberg proved that no ruler is exact, thus they all lie.

Every last one of them.

[One_Life_To_Give]

40. Cal Cert Traceable to National Bureau of Standards

Not all rulers are accurate and there are stories of factories finding themselves with rulers having significant error. And why people who take measurement seriously will only trust a instrument with a proper Calibration Certificate traceable to National Standards.