KidzSearch Wiki

File:Aluminium oxide2.png

Original file ‎(1,137 × 1,080 pixels, file size: 2.02 MB, MIME type: image/png)

Commons-logo.svg This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description
English: Aluminium oxide skimmed off the surface of molten aluminium.
Čeština: Oxid hlinitý odebraný z povrchu taveniny hliníku
Date
Source Own work
Author Nbritton
Permission
(Reusing this file)		 Public Domain


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

Deutsch ∙ English ∙ español ∙ français ∙ Gaeilge ∙ italiano ∙ Plattdüütsch ∙ português ∙ sicilianu ∙ svenska ∙ suomi ∙ македонски ∙ русский ∙ മലയാളം ∙ 한국어 ∙ 日本語 ∙ 中文 ∙ 中文（简体）‎ ∙ עברית ∙ +/−

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

aluminium oxide

MIME type

image/png

checksum

e0e0fe30d2d8c728cdc2a83801548717024fdb82

determination method: SHA-1

data size

2,116,080 byte

height

1,080 pixel

width

1,137 pixel

File history

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

Date/TimeDimensionsUserComment
current21:25, 13 April 20081,137 × 1,080 (2.02 MB)Nbritton~commonswiki{{Information |Description=Aluminium oxide skimmed off the surface of molten aluminium. |Source=self-made |Date=2008 |Author= Nbritton |Permission=Public Domain }}

There are no pages that use this file.

Retrieved from "https://wiki.kidzsearch.com/wiki/File:Aluminium_oxide2.png"