File:IBM 1620 data processing machine on display, Seattle World's Fair, 1962.jpg
原始文件 （483 × 630像素，文件大小：41 KB，MIME类型：image/jpeg）
| 描述 |
Creator: Dudley, Roger Description: The behavior of an elastic ball bounced on a hard surface is mathematically simulated by an w:IBM 1620 data processing system and visually traced by a CalComp digital plotter linked to the computer. This 'bouncing ball' problem is demonstrated daily in the 'Tools of Science' area of the U.S. Science Exhibit at the World's Fair. <a href="http://content.lib.washington.edu/u?/imlsmohai,3684" rel="nofollow">View source image</a>. Part of <a href="http://content.lib.washington.edu/imls/kcsnapshots/index.html" rel="nofollow">King County Snapshots</a> <a href="http://www.lib.washington.edu/" rel="nofollow">University of Washington Libraries</a>. Brought to you by <a href="http://imlsdcc.grainger.uiuc.edu/" rel="nofollow">IMLS Digital Collections and Content</a>. Unrestricted access; use with attribution. |
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| 日期 | 摄于1962年 | ||
| 来源 | Flickr: IBM 1620 data processing machine on display, Seattle World's Fair, 1962 | ||
| 作者 | Roger Dudley, IMLS Digital Collections & Content | ||
| 授权 (二次使用本文件) |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2013年1月14日 (一) 20:14 | | 483 × 630（41 KB） | Flickr upload bot | Uploaded from http://flickr.com/photo/42381338@N04/4733390400 using Flickr upload bot |
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