Talk:Gram
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In the Gram (unit) page, Wikipedia says:
A cubic centimetre (10-6 m3) of water has a mass of approximately one gram. It is approximately equal to the mass of a paper clip.
The mass of a regular paper clip is approximately 0.5 gram. The mass of a jumbo paper clip is approximately 1.5 gram.
Bob Albrecht MathBackpacks@aol.com
Since we seem to be on the topic of office supplies, I might note that the mass of a single A4 sheet of paper at its most common thickness of 80 g/m² is 5 gram.
—Herbee 12:53, 2004 Feb 24 (UTC)
I agree with Bob. In my science classes, my students have measured paper clips, only to find they weigh from .5 to 1.5 grams. A plastic pen cap ( think Bic ) weighs exactly 1.0 grams. Should we not tell the world? Please see my web site for proof:
It's a Pen Cap
It is equal to the mass of a plastic pen cap (Bic). A paper clip is often referred to as the weight of a gram, but paper clips weigh from 0.5 gram to 1.5 grams. (unsigned anon contribution)
To what precision? Given that there are different kinds of pen caps (even Bic ones) what is the accuracy? It's reasonable to mention something that weighs about a gram, to give an idea of scale, but pen caps are not even made to the standard of accuracy that we are talking about.
You should also be aware that we have something called the "three revert rule". This means that if you add something to Wikipedia and it gets changed back three times, you have to wait a day before making more changes to the article. If you don't do this you can be blocked from editing Wikipedia. You are already over this limit, but on the assumption that you didn't know about it I'm going to let you off. However if you repeat the change you will be blocked. DJ Clayworth 15:53, 22 Mar 2005 (UTC) DJ Clayworth 15:49, 22 Mar 2005 (UTC)
- Amen. Gene Nygaard 16:06, 22 Mar 2005 (UTC)
Not a derived unit
Would it be better to reword the second paragraph, since technically the gram is a submultiple of a base unit, and not a derived unit (see the SI brochure or NIST SP 330, e.g.).
Also, FWIW, a US nickel is exactly 5 g (see US Mint coin specifications (http://www.usmint.gov/faqs/circulating_coins/index.cfm?action=faq_circulating_coin#specifications)). Gary Brown 01:07, 29 Mar 2005 (UTC)