الصوره الاصليه (1,100 × 1,425 بكسل حجم الفايل: 927 كيلوبايت، نوع MIME: image/jpeg)
الملف دا من ويكيميديا كومنز و ممكن تستعمله المشاريع التانيه.
الوصف بتاعه صفحة وصف الملف هناك معروض تحت..
This image has currency in it to indicate scale.
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).
English: This photo was taken in 2001 [by Erowid staff Earth] of synthetic mescaline being weighed, 1 gram (963 mg actually). Substance identity verified by a lab. The coin depicted is a U.S. quarter (25¢).
تاريخ
مصدر
Re: [Ticket#2014060110003029] [sage #92628]: Mescaline Photo for Wikipedia
نسبه ل – لازم يتنسب العمل للى مألفه بشكل مناسب و توفير رابط للرخصه وتحديد اذا حصلت تغييرات. ممكن ده يتعمل بأى طريقه معقوله، لكن مش بطريقه تشير ان مانح الرخصه بيوافقك على الاستعمال.
https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue