Selling a wedding ring

[Chris S]

1) I don't have very accurate scales.

Use the ones at the Post Office. They weigh things to 1/100 of a gram.

 

[Yellow Saddle]

Use the ones at the Post Office. They weigh things to 1/100 of a gram.

I doubt it. Not even my local cocaine dealer goes down to that resolution.

 

[Chris S]

I doubt it. Not even my local cocaine dealer goes down to that resolution.

The figures before the decimal point are grams and there are at least two digits after it.

 

[Yellow Saddle]

The figures before the decimal point are grams and there are at least two digits after it.

You are just stating your case using a different format. I still doubt it.

 

[Chris S]

Take a look in your local Post Office.

 

[Yellow Saddle]

Take a look in your local Post Office.

I shall do that on my next visit, but I don't doubt the veracity of your statement. I doubt the scale's ability to go down to that resolution in a meaningful way. Measurement at that resolution, at 10-5 of a kg or meter is specialist stuff. You don't do it on an open pan scale or by using a ruler of sorts. The scale will have to be enclosed so that breezes and dust doesn't affect it, it will have to be cushioned to prevent building vibration to frustrate you and, even then, you'll have to continuously re-calibrate it with known weights which can never be touched by hand.
Some of the lab rats on here can perhaps shed better light on measuring weight to such accuracy. I've forgotten who they are but I hope they come out of the pipework for this one.

The concept is bizarre.

 

[Chris S]

It's an electronic scale.

 

[Yellow Saddle]

It's an electronic scale.

And how does that change things?

 

[Yellow Saddle]

It's an electronic scale.

Read this before replying.

https://www.npl.co.uk/special-pages/guides/gpg71_mass

 

[Chris S]

They're more accurate than mechanical ones. If you think the Post Office are diddling people then complain to Watchdog.

 

[Electric_Andy]

Just to clear things up. I did actually weigh the ring on the post office scales beforehand. It was light.

 

[Yellow Saddle]

They're more accurate than mechanical ones.

No they are not.

 

[Chris S]

Just to clear things up. I did actually weigh the ring on the post office scales beforehand. It was light.

Just out of interest - was it a digital one with at least two decimal places?

 

[Electric_Andy]

Just out of interest - was it a digital one with at least two decimal places?

No, it looked like a see-saw with weights at one end.