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File:Hyoliths01.JPG

Original file ‎(2,272 × 1,704 pixels, file size: 922 KB, MIME type: image/jpeg)

Summary

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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Description Hyolithes cerops Walcott from the Spence Shale near Paris, Idaho (Middle Cambrian).
Date 1 November 2007 (original upload date)
Source

Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster).

[1]
Author Wilson44691 at English Wikipedia

Licensing

Public domain This work has been released into the public domain by its author, Wilson44691 at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Wilson44691 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-11-01 11:10 Wilson44691 2272×1704×8 (953600 bytes) Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster). [http://www3.wooster.edu/geology/MWilson.html]

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depicts

inception

1 November 2007

exposure time

0.00736919675755342667 second

focal length

23.3 millimetre

MIME type

image/jpeg

File history

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Date/TimeThumbnailDimensionsUserComment
current21:06, 3 July 2015Thumbnail for version as of 21:06, 3 July 20152,272 × 1,704 (922 KB)Wilson44691color
19:58, 30 March 2008Thumbnail for version as of 19:58, 30 March 20082,272 × 1,704 (931 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster). [http://www.wooster.edu/geology/MWilson.html]}} |Source=Transferred from [http://en.wikipedia.org en.wik

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