File:Glasses lying on laptop touchpad and erroneously producing strange effect on scrren.webm
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Original file (WebM audio/video file, VP8/Vorbis, length 9.0 s, 1,280 × 1,024 pixels, 3.75 Mbps overall, file size: 4.03 MB)
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[edit]DescriptionGlasses lying on laptop touchpad and erroneously producing strange effect on scrren.webm |
English: CAUTION: People who are sensitive for optical impressions with fast changing brightness should not look at this at all, as the blinking frequency may cause unwanted effects in their brain. A pair of reading glasses is lying on a laptop computer, at random in a position so that their (small) weight activates the touchpad. As a result, a paragraph of the Wikipedia article on the screen is - in a fast but random sequence - highlighted and dis-highlighted. The average time until the next blue-white-period starts is 1/6.5 seconds, meaning the highlighted section blinks with 6.5 Hz. The situation was not intended but appeared suddenly on the photographer's computer, who first thought that his laptop had a grave error - until understanding what was happening. For programmers, engineers, physicists etc.: This effect seems to be an interesting example of interaction between the weight force permanently exerted by an object on a "switch" (the touchpad) and a computer system, while the resulting oscillation frequency on the screen is probably influenced by both the scan rate of the touchpad and the highlighting procedure in Microsoft Windows - just a first guess. If someone has any ideas, questions etc. theron, you are invited to post them on my talk page. |
Date | |
Source | Own work |
Author | Pittigrilli |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:28, 21 October 2022 | 9.0 s, 1,280 × 1,024 (4.03 MB) | Pittigrilli (talk | contribs) | Uploaded own work with UploadWizard |
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