Timeline for Find a straight tunnel
Current License: CC BY-SA 3.0
37 events
| when toggle format | what | by | license | comment | |
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| Jul 25 at 11:21 | comment | added | Lucenaposition | en.wikipedia.org/wiki/Opaque_set has a bound of about 4.7998. | |
| May 31 at 2:38 | comment | added | mckeed | @Simd if you can't plow outside, you must plow the entire perimeter or you'll miss a tangent wherever you don't. | |
| Jan 20 at 9:17 | comment | added | Simd | Now I want to know what other restrictions for this problem make interesting puzzles too . What if you can plow only within the circle (and the boundary)? Is it simpler in that case? | |
| Jan 20 at 5:58 | comment | added | klm123 | @Simd, i have not. | |
| Jan 7 at 23:23 | comment | added | Simd | Did you consider posting this to math.se? | |
| Mar 7, 2021 at 21:16 | history | edited | bobble |
added broader tag
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| S Jan 3, 2017 at 3:06 | history | bounty ended | humn | ||
| S Jan 3, 2017 at 3:06 | history | notice removed | humn | ||
| S Dec 29, 2016 at 10:52 | history | bounty started | humn | ||
| S Dec 29, 2016 at 10:52 | history | notice added | humn | Reward existing answer | |
| Dec 25, 2016 at 22:08 | answer | added | Oray | timeline score: 21 | |
| Dec 25, 2016 at 8:07 | history | edited | klm123 |
edited tags
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| Apr 17, 2015 at 13:11 | comment | added | Jiminion | From the JMon link, it sounds like it's an unsolved geometric problem. I think a variation on JLee's approach is probably best. There is some kind of optimization wherein in X lines (of Y length, and A angle to tangent) is optimal. | |
| Apr 17, 2015 at 6:22 | comment | added | klm123 | @Len, i'm waiting for an answer with smallest length. Ideally it should have prove that this length is possible and can't be improved. Thank you for your note, I haven't noted the comment.. | |
| Apr 17, 2015 at 5:28 | comment | added | Len | @klm123 - If you are waiting for an answer that is less than 4.8 km, Tryth already posted a link to this answer in his comment below the JonTheMon's answer. It seems that nobody is going to just copy that answer. | |
| Apr 17, 2015 at 5:09 | history | edited | klm123 | CC BY-SA 3.0 |
added 57 characters in body
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| Apr 16, 2015 at 19:19 | vote | accept | klm123 | ||
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| Apr 15, 2015 at 15:28 | history | edited | klm123 | CC BY-SA 3.0 |
added 4 characters in body
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| S Apr 14, 2015 at 17:46 | history | suggested | CommunityBot | CC BY-SA 3.0 |
Improve grammar and wording
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| Apr 14, 2015 at 17:16 | review | Suggested edits | |||
| S Apr 14, 2015 at 17:46 | |||||
| S Apr 14, 2015 at 1:23 | history | suggested | NinjaBearMonkey | CC BY-SA 3.0 |
add mathjax formatting
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| Apr 14, 2015 at 0:37 | review | Suggested edits | |||
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| Apr 13, 2015 at 23:43 | answer | added | zeb | timeline score: 27 | |
| Apr 13, 2015 at 22:23 | answer | added | r3mainer | timeline score: 32 | |
| Apr 13, 2015 at 18:47 | answer | added | JLee | timeline score: 0 | |
| Apr 13, 2015 at 18:39 | answer | added | Logic Knight | timeline score: 11 | |
| Apr 13, 2015 at 18:38 | answer | added | Engineer Toast | timeline score: 3 | |
| Apr 13, 2015 at 18:15 | history | edited | mdc32 | CC BY-SA 3.0 |
fixed simple math
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| Apr 13, 2015 at 17:20 | answer | added | poison8 | timeline score: -3 | |
| Apr 13, 2015 at 17:01 | comment | added | Allan | Ok I see what you're saying now. I missed the point that you said you can plow outside the area. | |
| Apr 13, 2015 at 16:57 | comment | added | klm123 | @Allan, yes, and it is possible: puzzling.stackexchange.com/a/11973/28 | |
| Apr 13, 2015 at 16:54 | comment | added | Allan | Wait, so you're saying that something like this can happen? If so, I don't think it's possible you can get it smaller than the circumference since you must reach every point on the perimeter. | |
| Apr 13, 2015 at 16:33 | history | edited | klm123 | CC BY-SA 3.0 |
added 102 characters in body; edited title
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| Apr 13, 2015 at 16:30 | comment | added | klm123 | @leoll2, yes, that's correct. | |
| Apr 13, 2015 at 16:29 | answer | added | JonTheMon | timeline score: 16 | |
| Apr 13, 2015 at 16:28 | comment | added | leoll2 | "at least touches it at one point" means that the tunnel can be tangent to the circle? | |
| Apr 13, 2015 at 16:22 | history | asked | klm123 | CC BY-SA 3.0 |
