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File:Dinosaur track.jpg

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原始檔案(1,024 × 768 像素,檔案大小:149 KB,MIME 類型:image/jpeg


摘要

描述

Eubrontes, a footprint of a theropod dinosaur, preserved in reddish sandstones of the Moenave Formation (Lower Jurassic), near Tuba City, north of Flagstaff, Arizona.[1] Scale: The coin is a US quarter dollar (25¢, diameter: 24.26 mm, 0.955 in) comparable in size to a 50 euro cent coin. Hence, the maximum width of the footprint is about 30 cm (1 ft).

  1. see pictures at dinodomain.com at the Wayback Machine; Note: The whole domain is for sale now and there was only one picture of the original webpage archived, but it clearly shows the imprint in question, inferrable from the adjacent surface features of the rock.
日期
來源 http://pdphoto.org
作者 Jon Sullivan

授權條款

Public domain 此作品已由其作者,Jon Sullivan (PD Photo.org),釋出至公有領域。此授權條款在全世界均適用。
這可能在某些國家不合法,如果是的話:
Jon Sullivan (PD Photo.org)授予任何人有權利使用此作品於任何用途,除受法律約束外,不受任何限制。

Details
pdphoto.org Public domain This image from PD Photo.org has been released into the public domain by its author and copyright holder, Jon Sullivan.

From the photo page: This work is dedicated to the Public Domain. For non-US use it is also placed under a Creative Commons CC0 designation.

Sullivan has stated: "You may use this image for any purpose, including commercial. As the owner I have explicitly placed it in the public domain. If you do use it, please consider linking back to pdphoto.org. Use it for whatever you want. Use it all. Sell it. Mangle it. Whatever you want. Please. But it would be polite to let me know so I can at least enjoy whatever creative use you're putting it to. This doesn't mean that you can take the material and then copyright it yourself. It’s in the public domain and that’s where I want it to stay."

Attention: not all pictures from pdphoto.org are in public domain! Please check the metadata on the source before applying this license tag.

该图像以硬币来表示大小。

应避免使用硬币来表示物体的大小。因为不熟悉该硬币的人必须费工夫去查询该硬币的大小,甚至依靠猜测,这与使用硬币的初衷不符。硬币也可能会增加地域偏见,并且某些硬币的图案还可能受到著作权保护。

理想状态下,照片中在物体旁应该有一把尺子或其他非硬币的物品(例如这张照片这张照片),或者用图像编辑器标记上一个刻度(例如这张照片这张图像)。国际单位制(公制)在全球范围内最为常用(参见厘米)。

以硬币来表示大小的图片

供参考的硬币直径:

  • 美元:
    • 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
  • 加拿大元:
    • 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
  • 英镑:
    • 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
  • 欧元:
    • 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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目前2006年1月17日 (二) 11:46於 2006年1月17日 (二) 11:46 版本的縮圖1,024 × 768(149 KB)Gang65This is propably Tyrannosaurus rex tracks. The picture was taken from: http://pdphoto.org/PictureDetail.php?mat=pdef&pg=5493 I don't know which licence I should check.

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