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PerliteUSGOV.jpg (486 × 418 pixel, ívù akwukwo orunótu: 46 KB, MIME nke: image/jpeg)

Failụ a si na Wikimedia Commons,enwekwara ike iji ya eme ihe na arụmarụ ọzọ. Nkọwa na ihuakwukwọ nkọwa failụ eziri na okpuru.

Description: Perlite (volcanic glass with white powder appearance). Perlite is a volcanic glass that has many industrial applications, because of its light density and insulating properties.

Source: USGSS (dead link; Archived)

Transferred from the English language wikipedia Johan Lont at 11:53, 1 Feb 2005 (UTC). Original upload by w:en:User:Chris 73.


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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Public domain This image is a work of the "Minerals in Your World" project, a cooperative effort between the United States Geological Survey and the Mineral Information Institute. The images were featured in the "Minerals and Materials Photo Gallery" on the website of the U.S House Subcommittee on Energy and Natural Resources. As a work of the U.S. federal government, the image is in the public domain in the United States.

Nkowapụta

Tinye nkọwa otu ahịrị ihe faịlụ a na-anochi anya ya.
Photograph of pieces of perlite beside an American penny to indicate scale.

Ihe ndị egosiri na faịlụ a

depicts Bekee

MIME ụdị

image/jpeg

Ịta nke usòrò

Bìri èhì/ogè k'ị hụ òtù ụ̀fa dị̀ m̀gbè ahụ̀.

Èhì/OgèMbọ-akaÓgólógó na asaáÒjìèmeNkwute
dị ùgbu â11:57, 7 Mee 2011NvóÁká màkà otù ȯ dị nà 11:57, 7 Mee 2011486 × 418 (46 KB)Materialscientistcrop whitespace (plate is not the object)
11:46, 1 Febụwarị 2005NvóÁká màkà otù ȯ dị nà 11:46, 1 Febụwarị 2005600 × 449 (45 KB)Johan LontPerlite (volcanic glass)

Ihe ndị na-eso ihe eji Ihu akwụkwọ eme na faịlụ a:

Ejiji failụ zụrụ ọha

Wikis ndi a edeputara na eji kwa failụ a:

Ómárí nso

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Ȯ bụ nà usòrò à gabnwere shí òtù ȯ di nà mgbe mbu, ótù ụmà àgághị è zí ya.

Ewepụtara na https://ig.wikipedia.org/wiki/Faịlụ:PerliteUSGOV.jpg