File:Billiards half-ball striking diagram.png
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Size of this preview: 800 × 586 pixels. Other resolutions: 320 × 235 pixels | 640 × 469 pixels | 1,024 × 751 pixels | 1,161 × 851 pixels.
Original file (1,161 × 851 pixels, file size: 24 KB, MIME type: image/png)
| Description |
English: Created by me in Macromedia Flash.
Note that the angle imparted on the object ball relative to the direction of momentum of the cue ball is the angle between a line drawn from the centre of the cue ball through the centre of the object ball at the moment of contact, and a line drawn from the centre of the cue ball in the direction of its momentum before contact occurs. The angle is trivially calculated by noting that the hypotenuse of the black triangle in the diagram is 2 radii of either ball (assuming equal sized balls), and the length of the side opposite to the angle in question is 1 radius, thus the angle is given by the inverse sine of ½, which is 30°. If anyone requires or desires the original vector file with which to expand upon or in any way modify the image from the source file, feel free to send me a message. |
| Date | 27 May 2008 (original upload date) |
| Source | Transferred from en.wikipedia to Commons by P.o.l.o.commons. |
| Author | Yoimjamie at English Wikipedia |
Licensing
|
This work has been released into the public domain by its author, Yoimjamie at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Yoimjamie grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2008-05-27 04:28 Yoimjamie 1161×851× (24145 bytes) Created by [[User:Yoimjamie|me]] using Macromedia Flash
- 2008-05-27 04:13 Yoimjamie 1159×851× (23864 bytes) Created by [[User:Yoimjamie|me]] in Macromedia Flash.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:46, 29 December 2008 | | 1,161 × 851 (24 KB) | wikimediacommons>P.o.l.o.commons | {{Information |Description={{en|Created by me in Macromedia Flash. Note that the angle imparted on the object ball relative to the direction of momentum of the cue ball is the angle between a line drawn from the centre of the cue b |
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