Leiden

Miscellaneous

• The mayor is Henri Lenferink (since 2003).
• The coat of arms of Leiden is two keys, crossed in an X-shape.
• Wireless Leiden is a wireless community network, see that article.
• For a time Leiden held the title "The Coldest Place on Earth": in a laboratory, because of the developments in cryogenics that have happened there. Heike_Kamerlingh_Onnes (1913 Nobel price winner in physics) liquefied helium for the first time (1908), and later managed to reach a temperature of less than one degree above the absolute minimum.
• The Leyden jar, a capacitor made from a glass jar, was invented here by Pieter van Musschenbroek in 1746. It was actually first invented by Ewald Georg von Kleist the year before, but the name "Leyden jar" stuck.
• Leiden is on the planned route of the RijnGouweLijn, the Netherland's first Light rail project. Within Leiden its route will be: Leiden Lammenschans - Korevaarstraat - Breestraat - stop Haarlemmerstraat - Stationsplein - Joop Walenkamptunnel - Albinusdreef (LUMC) - Sandfortdreef - Zernikedreef (Hogeschool) - (Einsteinweg) - Ehrenfestweg - (Plesmanlaan) - Transferium A44.
• There are plans for a mega movie theater and disco (see nightclub) http://www.skyscrapercity.info/100.php?id=4&bid=1265 next to the bus station. There is also opposition, because it would damage the exploitation of other cinemas.
• Leiden has five twin towns: Juigalpa in Nicaragua, Krefeld in Germany, Oxford in the UK, Buffalo City in South Africa and Toruñ in Poland
• Postal codes are in the range 2300-2334.
• The telephone area code is 071.