Cannabis Sativa

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Original file ‎(2,147 × 2,453 pixels, file size: 1.88 MB, MIME type: image/jpeg)

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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).

Images with coins to indicate scale

Common coin diameters for reference:

  • U.S. dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.21 mm, 0.84 in
    • 10¢: 17.91 mm, 0.71 in
    • 25¢: 24.26 mm, 0.94 in
    • 50¢: 30.61 mm, 1.22 in
    • $1: 26.5 mm, 1.02 in
  • Canadian dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.2 mm, 0.83 in
    • 10¢: 18.03 mm, 0.71 in
    • 25¢: 23.88 mm, 0.94 in
    • 50¢: 27.13 mm, 1.07 in
    • $1: 26.5 mm, 1.02 in
    • $2: 28 mm, 1.1 in
  • Pound sterling as of 2021:
    • 1p: 20.32 mm, 0.8 in
    • 2p: 25.91 mm, 1.02 in
    • 5p: 18 mm, 0.71 in
    • 10p: 24.5 mm, 0.96 in
    • 20p: 21.4 mm, 0.84 in
    • 50p: 27.3 mm, 1.07 in
    • £1: 23.03–23.43 mm, 0.91–0.92 in
    • £2: 28.4 mm, 1.12 in
  • Euro as of 2002:
    • 1c: 16.25 mm, 0.64 in
    • 2c: 18.75 mm, 0.74 in
    • 5c: 21.25 mm, 0.84 in
    • 10c: 19.75 mm, 0.78 in
    • 20c: 22.25 mm, 0.88 in
    • 50c: 24.25 mm, 0.95 in
    • €1: 23.25 mm, 0.92 in
    • €2: 25.75 mm, 1.01 in

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Summary

Description
English: Samples of small rock and creations found at Hells Hollow State Park in Pennsylvania.
Date
Source Own work
Author Bfpage

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
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Captions

Concretions from Hells Hollow State Park in Pennsylvania

Items portrayed in this file

depicts

creator

some value

URL: https://commons.wikimedia.org/wiki/user:Bfpage
author name string: Bfpage
Wikimedia username: Bfpage

copyright status

copyrighted

copyright license

Creative Commons Attribution-ShareAlike 4.0 International

inception

30 May 2014

source of file

original creation by uploader

exposure time

0.03333333333333333333 second

f-number

2.6

focal length

3.7 millimetre

ISO speed

500

media type

image/jpeg

instance of

photograph

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current06:11, 11 May 2020Thumbnail for version as of 06:11, 11 May 20202,147 × 2,453 (1.88 MB)TillmanCropped 12 % horizontally, 25 % vertically using CropTool with lossless mode.
00:18, 18 October 2014Thumbnail for version as of 00:18, 18 October 20142,448 × 3,264 (2.94 MB)BfpageUser created page with UploadWizard
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Metadata

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source: https://en.wikipedia.org/wiki/File:Rock_concretions_from_Hells_Hollow_State_Park,_Pennsylvania.jpg

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