Wikipedia:Featured picture candidates/Archimedes-screw one-screw-threads with-ball 3D-view animated small.gif

Archimedes-screw with ball

Original - Archimedes' screw was operated by hand and could raise water efficiently. - Taken from Archimedes' screw This is one of the most important early machines and this image is a representation of how it works.

Large Version - The larger version of the above image with only one ball.

Reason

This picture is well made, and adds immesurable value to the Archimedes' Screw article. It aptly demonstrates the action of pulling water from the source

Articles this image appears in

Archimedes' screw, Archimedes, Civil engineering, Ready-mix concrete

Creator

Jahobr

• Support as nominator --The Talking Sock talk contribs 22:04, 16 March 2009 (UTC)
• Oppose - Interesting but too small -- Alvesgaspar (talk) 23:34, 16 March 2009 (UTC)

Can we get it in PNG or SVG? Mostlyharmless (talk) 00:49, 17 March 2009 (UTC)

An animated PNG or SVG? --jjron (talk) 01:30, 18 March 2009 (UTC)

There's a bigger version as File:Archimedes-screw one-screw-threads with-ball 3D-view animated.gif at 505 × 365px. Seems slightly different, only one ball. It's a 3.48MB download though which is why I think they've used the small one. --jjron (talk) 01:33, 18 March 2009 (UTC)

I used the smaller one 'cause the larger one uses only one ball, and the edges are pixelated and I thought that would be a point of contention. Maybe the bigger one would be better - The Talking Sock talk contribs 21:51, 20 March 2009 (UTC)

• Support. Excellent gif. I don't find it too small in comparison to its placement in the articles. Seems perfectly fine. Synergy 00:50, 17 March 2009 (UTC)
• Comment Red balls seems a somewhat odd choice - wouldn't it be better to attempt to show water? Shoemaker's Holiday (talk) 05:28, 17 March 2009 (UTC)
  • I'd tend to agree, whilst an Archimedes screw can raise particles (grain etc), the caption etc talks about water. Either the caption should be changed or the animation. Noodle snacks (talk) 06:39, 17 March 2009 (UTC)
    • Further, it'd probably be clearer if the source of the balls were visible - the basic idea is that the bottom is dipped in water (grain, etc), making them move into the area when a space opens up. I don't think that's so clear here, when the balls just appear. On the whole, considering size as well, I think I'm going to have to Oppose - we could do better. Shoemaker's Holiday (talk) 10:49, 18 March 2009 (UTC) Shoemaker's Holiday (talk) 10:48, 18 March 2009 (UTC)
      • Conditional Support if red balls can be replaced with water per Shoemaker. Spikebrennan (talk) 16:02, 19 March 2009 (UTC)
        • We'll have to get in touch with the author then. I'm no where near talented enough to make this. I thought the ball was a good way to show how the screw raises material, water might be a lot harder to show. In a lot of engineering diagrams on wikipedia, substances are represented by single balls. I do see your point though. The Talking Sock talk contribs 21:51, 20 March 2009 (UTC)
• Support Excellent representation of the device, in my opinion a ball allows the interior movement to be shown far more effectively than simulated water, disagree that the caption should be changed as the device was historically important chiefly because of it's ability to transport water. Flying Freddy (talk) 12:19, 17 March 2009 (UTC)
• Support - an excellent animation with great EV. Kaldari (talk) 20:52, 17 March 2009 (UTC)
• Oppose in current form, but think it could be resolved. I'm iffy on the use of balls as per SMH & NS above, but what I really dislike is how they just dissolve in and out, rather than being picked up at the bottom and dropped out the top. I can't see why that couldn't be done better. Also, as per Alves on size, I'd probably also suggest the 'small one' be at least 250px wide. --jjron (talk) 01:37, 18 March 2009 (UTC)
• Support Wow. Wish I had found this. TomStar81 (Talk) 22:28, 18 March 2009 (UTC)
• Comment Has noone else noticed the "Large one" not only misleads as to how often an archimedes' screw picks up, but is also riddled with pixellation? Strong oppose alt1 Shoemaker's Holiday (talk) 09:25, 21 March 2009 (UTC)
• Oppose both: I agree with the comments made by jjron and Shoemaker's Holiday. In my opinion, this isn't a sufficient illustration of the subject or the principle. And the large version is, as Talking Sock said, pixelated. Maedin\^talk 09:24, 23 March 2009 (UTC)
• Oppose per above. Noodle snacks (talk) 09:35, 23 March 2009 (UTC)

Not promoted MER-C 09:16, 24 March 2009 (UTC)