Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted.
Ideally, a photograph should include a ruler with the subject (example) or an added scale marking.
SI ("metric") units are the most commonly used worldwide (see meter and centimeter).
Autor Fazalmajidinglise Vikipeediast on andnud selle teose avalikku omandisse. See kehtib üleilmselt. Kui see pole mõnes riigis õiguslikult võimalik: Fazalmajid annab kõigile õiguse seda teost kasutada ükskõik mille jaoks, ilma ühegi tingimuseta, kui seadus neid just ei sea.Public domainPublic domainfalsefalse
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{{Information |Description= {{en|Uncooked ''lanterne'' pasta.}} {{fr|Pâtes ''lanterne'' non cuites.}} {{it|''Lanterne'' non cotti.}} |Source= English-language Wikipedia |Date= uploaded to wp:en on 3 December 2006 |Author= Fazal Majid |Permission= public