Wikipedia:Reference desk/Archives/Miscellaneous/2011 June 25

= June 25 =

How much is a train ticket between Lund, Sweden and Copenhagen, Denmark?
How much is a train ticket between Lund, Sweden and Copenhagen, Denmark? How much is a single ticket, how much is a return ticket, and how much is a season ticket (month/year)? Is there a special offer for students and/or university staff who want to use the train regularly (e.g., because they live in Lund and work in Copenhagen or vice versa? 85.179.141.49 (talk) 11:36, 25 June 2011 (UTC)


 * From a quick look on the SJ website, www.sj.se, a single 2nd class ticket on a non-X2000 train is SEK 137, non-rebookable, or SEK 166 refundable (on X2000: SEK 172 / 233 respectively, though the X2000 appears to take 5-6 minutes longer for the journey than the ordinary Öresundstågen). Return fares appear to be twice the single. You may want to enquire about season tickets at an SJ station or ticket agent, as unfortunately I don't read enough Swedish to spend time going through the website! -- Arwel Parry (talk) 12:34, 25 June 2011 (UTC)
 * With Skånetrafiken the cheapest one-way ticket between Lund and central Copenhagen is SEK 108 for an adult. There is a 30-day pass (JoJo Period Öresund) for SEK 2300 and a 30-day pass for those who study in Denmark that's about 35% cheaper . Part of their website is in English but not that page, this one is however . Here's their contact page .Sjö (talk) 19:11, 29 June 2011 (UTC)

Original Reshearch
Does any one know of any Collaborative websites like Wikipedia  that allow original research or indeed encourage or require it? I like contributing to Wikipedia but find the rules about original research a little frustrating and limiting. Therefore I was looking for an outlet for my some original research, that has similar goals to Wikipedia. I enjoy the feedback, discussion, peer review that results from my non-original research contributions to WP and want forum with a similar community that aims to be more that  just a series of blogs or personal websites. I have done a lot of Googleing but have found nothing and just wondering if anyone knows of anything?

Thanks — Preceding unsigned comment added by EditMonkey (talk • contribs) 16:03, 25 June 2011 (UTC)


 * I believe both Wikibooks and Wikiversity allow original research contributions. Gandalf61 (talk) 18:18, 25 June 2011 (UTC)


 * Thanks, I check those two out. EditMonkey (talk) 21:38, 25 June 2011 (UTC)

Is there any location more dense than Manhattan?
Manhattan - Total 	1,629,054 - Density 	70,951/sq mi (27,394.3/km2)

Is there any area on earth with a million plus people that is as dense or more dense than that?

Tablewinechair (talk) 20:35, 25 June 2011 (UTC)


 * List of cities proper by population density lists several. See also List of sovereign states and dependent territories by population density; as the figures for Hong Kong and Macao cover their entire territories (which include some suburban, industrial, and countryside areas) then surely there will be regions of them that are very dense. I don't know of anything denser than the 1987 figures for Kowloon Walled City which estimated a density of 3,249,000/sq mi, which makes Manhattan look positively rural. -- Finlay McWalter ☻ Talk 20:43, 25 June 2011 (UTC)


 * Why isn't Dhaka on the list? According to this, "approaching in excess of 100,000 per square mile", "the urban area is the world’s most dense". Clarityfiend (talk) 20:49, 25 June 2011 (UTC)


 * See Mong Kok.—Wavelength (talk) 20:48, 25 June 2011 (UTC)


 * You might also be interested in List of United States cities by population density, the CDP table on which lists Friendship Village, Maryland as having a population density of 81,991/sq mi. -- Finlay McWalter ☻ Talk 20:48, 25 June 2011 (UTC)


 * I would imagine that the densest location would be the footprint of one of the very tall residential skyscrapers. Unfortunately none that I've looked at declares an actual population (just number of floors and sometimes number of apartments), so it's not easy to calculate what the effective 2d (people/sq mi) density is. -- Finlay McWalter ☻ Talk 21:10, 25 June 2011 (UTC)


 * Friendship Village, Maryland is only 0.06 square miles, or about 32 acres, which makes it about half the size of Vatican City. Central Park, Manhattan, itself is 843 acres. Seems to me this question comes down to what counts as a "place". Stuyvesant Town—Peter Cooper Village, in Manhattan, has about 25,000 people living on 80 acres, which, if my math hasn't failed me, is about 200,000 people per square mile. Pfly (talk) 09:05, 26 June 2011 (UTC)
 * Surely, the most densely populated place is the approx 0.5 m2 beneath your feet; equivalent to approx 2,000,000 per km2. Astronaut (talk) 10:53, 26 June 2011 (UTC)
 * My foot measures approximately 28×10 cm. If we assume all people have the same size feet and all stand on one foot, we get approximately 35,700,000 people per km2. J I P  &#124; Talk 14:30, 27 June 2011 (UTC)
 * We could have someone stand on their shoulders and get double that. Googlemeister (talk) 14:26, 28 June 2011 (UTC)

Most responders seem to be missing the requirement that the area should have more than a million inhabitants. Manila, North East Delhi and Kowloon do meet the requirement. List of cities proper by population density claims that Kolkata does as well, but according to the latter article, Kolkata City only has a population of 4,486,679 in a region of 185 km2, giving a density of 24,252 people/km2. 188.117.30.209 (talk) 11:17, 26 June 2011 (UTC)
 * I had missed the requirement as well - it makes the question far more sensible! It's still difficult to work out, though, since (using your example) there may well be part of Kolkata containing a million people in a much denser area (if you just include the centre of the city and not the suburbs, say). The definition of a city's borders is usually highly arbitrary (see urban sprawl, conurbation, metropolitan area, etc.). It's very hard to avoid differing ways of defining the city's borders from affecting the density. To take an extreme case, the City of London is technically just a square mile, what people think of as "London" isn't a city at all. If you look at just the square mile its population density is either about 10,000 people per sq mile (at night) or about 300,000 people per sq mile (during the day). That's either far higher or far lower than the usually quoted population density of London, thus demonstrating the differences a change in definition can cause. --Tango (talk) 13:48, 26 June 2011 (UTC)
 * Population density is normally, as far as I know, linked to homes--the place where a person sleeps and cites as their home address. I assume that London's "population" is might higher during the day, if "population" includes people who have commuted to their workplace. by the same token Manhattan's population during the day should be far great than 1,629,054. Speaking personally, I used to live in Brooklyn, but worked in Manhattan. Still, I agree that the question is hard to work out without clarification about what constitutes  a "place" and how to calculate "population". Pfly (talk) 10:04, 27 June 2011 (UTC)


 * "Location" and "area" are vague but the question mentioned Manhattan. According to List of islands by population density, the only island with a million plus people and higher population density is Salsette Island with 13,000,000 on 436 km2 for around 30,000/km2. PrimeHunter (talk) 12:17, 27 June 2011 (UTC)

Population density statistics for administrative subdivisions of major cities appear to be relatively easy to find. According to the statistics I could find on wikipedia Dhaka, Tokyo, Osaka and Beijing have no districts with more than a million inhabitants and density higher than Manhattan's. However Yuexiu District in Guangzhou is another contender. I haven't found anything that gets even close to the density of Manila (43,000 people/km2). 188.117.30.209 (talk) 21:37, 27 June 2011 (UTC)