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Magnetic_nano_containers_(reproduced_with_permission_of_the_image's_owner).jpg ‎(500 × 500 pixels, file size: 43 KB, MIME type: image/jpeg)

--Evidence of permission sent to Wikimedia Commons via email--

Description
English: Magnetic nano geocache containers. Top: Magnetic nanos a variety of colours. Bottom: a magnetic nano next to a Quarter dollar for size comparison.
Date
Source http://geocaching.co.uk/getting-started/types-geocache/
Author Lee Wilding
Permission
(Reusing this file)
VRT Wikimedia

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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).

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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Reproduced with permission from image owner Lee Wilding from the UK Geocaching website (http://geocaching.co.uk/getting-started/types-geocache/)

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Captions

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Obiekty przedstawione na tym zdjęciu

depicts

Washington quarter

copyright status

copyrighted

copyright license

Creative Commons Attribution-ShareAlike 2.0 UK: England & Wales

Wikimedia VRTS ticket number

2016121010013503

inception

11 April 2014

media type

image/jpeg

File history

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

Date/TimeThumbnailDimensionsUserComment
current19:28, 30 November 2016Thumbnail for version as of 19:28, 30 November 2016500 × 500 (43 KB)Mojo0306User created page with UploadWizard
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source: https://en.wikipedia.org/wiki/File:Magnetic_nano_containers_(reproduced_with_permission_of_the_image%27s_owner).jpg

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