File:20181230_Bowling_ball_at_board_17.5_with_pins.png
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![File:20181230 Bowling ball at board 17.5 with pins.png](http://upload.wikimedia.org/wikipedia/commons/thumb/9/92/20181230_Bowling_ball_at_board_17.5_with_pins.png/470px-20181230_Bowling_ball_at_board_17.5_with_pins.png)
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摘要
描述20181230 Bowling ball at board 17.5 with pins.png |
English: A ten-pin bowling rack with a bowling ball impacting the head pin while the ball is centered on "board 17.5", which is believed to be the impact point providing the greatest likelihood of striking. Diagram demonstrates that, contrary to common belief, the ideal "pocket" is not "between" the 1 and 3 pins.
Changes arriving at the third, fourth, etc. versions are relatively minute.Diagram also demonstrates how pins other than pins 1 and 5 are not set on boards that are multiples of 5. Beginning with Version 3, diagram also shows entry angles of 0°, 2°, 4° and 6°.
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日期 | |
來源 | 自己的作品 |
作者 | RCraig09 |
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Related images
Corresponding images for w:Ten-pin bowling, w:Duckpin bowling, and w:Candlepin bowling were made using Powerpoint.
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20181230 Bowling ball at board 17.5 with pins.png
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20190510 Duckpin ball and pins on lane.png
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20190525 Candlepin ball and pins on lane.png
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20181230 Bowling ball at board 17.5 with pins.png
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20200127 Bowling ball and pins for strike - front view.png
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2009 USBC tenpin bowling pin carry study - probability of strike.svg
說明
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描繪內容
30 12 2018
多媒體型式 繁體中文 (已轉換拼寫)
image/png
206,827 位元組
2,251 像素
1,766 像素
檔案歷史
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日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
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目前 | 2021年5月2日 (日) 16:03 | ![]() | 1,766 × 2,251(202 KB) | RCraig09 | Version 7: reduced file size at tinypng.com |
2019年6月25日 (二) 05:07 | ![]() | 1,766 × 2,251(445 KB) | RCraig09 | D'oh! I made the legend larger. | |
2019年6月25日 (二) 05:03 | ![]() | 1,766 × 2,251(444 KB) | RCraig09 | Adding text legend at top of image "Ten-pin bowling" to distinguish from similar images uploaded for Duckpins and Candlepins. | |
2019年1月23日 (三) 03:26 | ![]() | 1,766 × 2,251(439 KB) | RCraig09 | In Powerpoint: removing red "Line" (that is, the outline) of pins that added inaccuracy to their thickness. This FOURTH version is believed to be the most accurate. Incidental changes: removed fringe from layers of bowling ball, and added subtle shadows to give dimensionality. | |
2019年1月13日 (日) 17:20 | ![]() | 1,766 × 2,251(380 KB) | RCraig09 | • Added ball paths for 0° and 2° and 4° and 6° angles of entry. • Moved ball forward minutely, to account for slight overlap in real life of pin and ball, since ball strikes pin below the pin's "waist" (widest point) and slightly above ball's equator. • Enlarged font of pin numbers. | |
2018年12月31日 (一) 01:18 | ![]() | 2,366 × 2,953(552 KB) | RCraig09 | Bowling ball is shifted from being centered from middle of Board 17, to the boundary between Boards 17 and 18 -- a half-inch move. There is ambiguity as to what "Board 17.5" means, so I'm uploading versions for each interpretation. | |
2018年12月30日 (日) 21:10 | ![]() | 2,366 × 2,958(552 KB) | RCraig09 | User created page with UploadWizard |
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