r/pics May 04 '21

Started collecting 1oz bars of pure metals: aluminum, titanium, copper, nickel, silver, gold

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u/Loki-L May 04 '21

Note that these are all troy ounces not the sort of ounces you normally weigh stuff in in the US.

A troy ounce ins about 1.1 of a regular ounce, but you only need 12 of them to get a troy pound.

This means that a troy ounce is more than a regular ounce, but a troy pound is less than a regular pound.

Online calculators and the like are usually smart enough to automatically assume that you mean troy when talk about the worth of an ounce of gold, but it helps to double check.

To avoid confusion you say things like "1oz t" instead of "1 oz" when talking about precious metals.


u/ThePhenex May 04 '21

I want to know how many people have already died because of conversion errors.


u/miyog May 04 '21 edited May 04 '21

We lost a Mars satellite some years back due to conversion errors between metric and imperial!


u/columbus8myhw May 04 '21


u/advertentlyvertical May 04 '21

why would this wiki article have an artist's impression of the orbiter instead of an actual picture?


u/DingleberryHandpump- May 04 '21

Copyright most likely.


u/P0werC0rd0fJustice May 04 '21

Official NASA photos are typically not copyrighted at all. Never for personal use, and as long as attribution is given and the photos presented in a factual/news context (such as Wikipedia), they are free to use it without approval or payment.


Edit: Looking into it more, the artist’s rendition used is actually originally from NASA. Lol



u/moosepile May 04 '21

And the Gimli Glider


Edit: as example of conversion error not loss of life…


u/columbus8myhw May 04 '21

The Mars Climate Orbiter didn't kill anyone either


u/dullday1 May 04 '21

I might be misremembering but i think there was also a plane that went down due to a conversion error when filling the gas tank


u/pshawny May 04 '21

I do believe you mean the Death Star.


u/DingleberryHandpump- May 04 '21

No deaths, but there was Air Canada flight 143 that ran out of fuel due to conversion errors between lbs and kg. The pilots did one hell of a job gliding and landing it at a disused Air Force base. It’s often referred to as the Gimli glider.


u/WhenwasyourlastBM May 04 '21

I could see that happening easily in a hospital. We dose meds off of weight, if you input lbs as kilograms your patient is going to have a bad time.