Aluminium_oxide2.jpg((571 × 560 pixel, fitxategiaren tamaina: 63 KB, MIME mota: image/jpeg))

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Fitxategi hau Wikimedia Commonsekoa da
Deskribapena
English: Aluminium oxide skimmed off the surface of molten aluminium.
Čeština: Oxid hlinitý odebraný z povrchu taveniny hliníku
Data (UTC)
Jatorria
Egilea


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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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: converted to JPG + minor crop. The original can be viewed here: Aluminium oxide2.png.

Nik, lan honen egileak, argitaratzen dut ondorengo lizentzia pean:
Public domain Nik, lan honen egile eskubideen jabeak, lan hau domeinu publikoan jartzen dut. Mundu osoan du eragina honek.
Estatu batzuetan beharbada hori ez da legez posible izango. Halakoetan:
Edonori ematen diot lan hau edozertarako erabiltzeko eskubidea, inolako baldintzarik gabe, legeak nahitaez ezarritako baldintzak izan ezik.

Jatorrizko igoera erregistroa

This image is a derivative work of the following images:

  • File:Aluminium_oxide2.png licensed with PD-self
    • 2008-04-14T04:25:35Z Nbritton 1137x1080 (2116080 Bytes) {{Information |Description=Aluminium oxide skimmed off the surface of molten aluminium. |Source=self-made |Date=2008 |Author= [[User:Nbritton|Nbritton]] |Permission=Public Domain }}

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Fitxategi honetan agertzen diren itemak

honako hau irudikatzen du

28 iraila 2009

media type ingelesa

image/jpeg

checksum ingelesa

0edb33f685ddbd3cc26fff33bc21c5a1d1e17d1f

data size ingelesa

64.415 Byte

560 pixel

571 pixel

Fitxategiaren historia

Data/orduan klik egin fitxategiak orduan zuen itxura ikusteko.

Data/OrduaIruditxoaNeurriakErabiltzaileaIruzkina
oraingoa02:26, 28 iraila 200902:26, 28 iraila 2009 bertsioaren iruditxoa571 × 560 (63 KB)Materialscientist{{Information |Description=Aluminium oxide skimmed off the surface of molten aluminium. |Source=*File:Aluminium_oxide2.png |Date=2009-09-28 00:24 (UTC) |Author=*File:Aluminium_oxide2.png: Nbritton *derivative work: ~~~ |Permi

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