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River Surfing
River surfing is the sport of surfing either standing waves, tidal bores or upstream waves in rivers. Claims for its origins include a 1955 ride of along the tidal bore of the River Severn. River surfing on standing waves has been documented as far back as 1972 on an artificial wave created on a section of the ''Eisbach'' man-made river, a side arm of the Isar River, near Haus der Kunst in the Englischer Garten park in Munich, Germany, today offering the world's largest urban surfing spot. Standing waves In this type of river surfing, the wave is stationary on the river, caused by a high volume of water constricted by flowing over a rock and creating a wave behind. A requirement for this is a flowing water with shallow depth in which the inertia of the water overcomes its gravity due to the supercritical flow speed ( Froude number: 1.7 - 4.5, surpassing 4.5 results in direct standing wave) and is therefore neither significantly slowed down by the obstacle nor pushed to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisbach Die Welle Surfer
Eisbach may refer to: Places * Eisbach (Styria), a municipality in the district of Graz-Umgebung, Styria, Austria * Eisbach (Gaildorf), village in the borough of Gaildorf, county of Schwäbisch Hall, Baden-Württemberg, Germany * Eisbach (Königswinter), district of Königswinter Königswinter (; ; Low Franconian: ) is a town and summer resort in the Rhein-Sieg district, in North Rhine-Westphalia, Germany. Geography Königswinter is situated on the right bank of the Rhine, opposite Bad Godesberg, at the foot of the ..., Rhein-Sieg-Kreis, North Rhine-Westphalia, Germany * Eisbach (Sulzbach-Laufen), village in Sulzbach-Laufen, county of Schwäbisch Hall, Baden-Württemberg, Germany * Eisbach (Micheldorf), village in Micheldorf in Oberösterreich, district of Kirchdorf an der Krems, Upper Austria Rivers: * Eisbach (Isar), side arm of the Isar, Bavaria, Germany * Eisbach (Kocher), right tributary of the Kocher in Sulzbach-Laufen, county of Schwäbisch Hall, Baden- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Froude Number
In continuum mechanics, the Froude number (, after William Froude, ) is a dimensionless number defined as the ratio of the flow inertia to the external force field (the latter in many applications simply due to gravity). The Froude number is based on the speed–length ratio which he defined as: \mathrm = \frac where is the local flow velocity (in m/s), is the local gravity field (in m/s2), and is a characteristic length (in m). The Froude number has some analogy with the Mach number. In theoretical fluid dynamics the Froude number is not frequently considered since usually the equations are considered in the high Froude limit of negligible external field, leading to homogeneous equations that preserve the mathematical aspects. For example, homogeneous Euler equations are conservation equations. However, in naval architecture the Froude number is a significant figure used to determine the resistance of a partially submerged object moving through water. Origins In open c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vans
Vans (originally called the Van Doren Rubber Company) is an American apparel, accessories, and skateboarding shoes brand, established in Anaheim, California, and owned by VF Corporation. The company also sponsors surf, snowboarding, BMX, and motocross teams. From 1996 to 2019, and beginning again in 2025, the brand has been a primary sponsor of the annual Warped Tour music festival. History Founding and early history Paul Van Doren, his brother James, and Gordon C. Lee opened the first Vans store as "The Van Doren Rubber Company" on March 16, 1966, at 704 East Broadway in Anaheim, California. The business manufactured shoes and sold them directly to the public. Upon opening, twelve customers purchased Vans deck shoes (now called "Authentic"), similar to those manufactured by Keds but with a thicker sole. The store had display models of three styles of shoes, priced between US$2.49 and $4.99, but did not have any inventory ready to sell and Paul Van Doren did not have change ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwigsvorstadt-Isarvorstadt
Ludwigsvorstadt-Isarvorstadt (Central Bavarian: ''Ludwigsvorstod-Isarvorstod'') is one of the boroughs of Munich, Germany. It consists of the districts Ludwigsvorstadt, located south of Munich Hauptbahnhof and east of the Theresienwiese, and Isarvorstadt, which is north-west of the River Isar and southeast of Munich's Altstadt-Lehel, Old Town. The Lindwurmstraße serves as a divider for the two districts. The population is estimated to be 54,049, according to the 2015 census. Benoit Blaser (The Greens) is the borough mayor since 2020, preceded by Andreas Klose (2019-2020) and Alexander Miklosy (2002-2018) (both Pink List). The borough The Ludwigsvorstadt district encompasses the quarters of St. Paul and Ludwigsvorstadt-Kliniken, while the district of Isarvorstadt is composed of the Schlachthofviertel, Drei-Mühlen-Viertel, Am alten Südfriedhof, the Glockenbachviertel, the Gärtnerplatzviertel, and Am Deutschen Museum. St. Paul The St. Paul quarter, located immediately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isar
The Isar () is a river in Austria and in Bavaria, Germany. Its source is in the Karwendel mountain range of the Alps. The Isar river enters Germany near Mittenwald and flows through Krün, Wallgau, Bad Tölz, Munich, and Landshut before reaching the Danube near Deggendorf. With 295 km length, it is among the longest rivers in Bavaria. It is Germany's second most important tributary of the Danube. Etymology One theory is that the name ''Isar'' stems from ''*es'' or ''*is'' in the Indo-European languages, meaning "flowing water", and later turned into a word with a meaning narrowed to frozen water (hence English ''ice'', ) in Proto-Germanic. The name itself is mentioned for the first time in 763 as ''Isura''. Related names include: *Eisack / Isarco (Italy) *Ésera (Spain) *Isar, Spain, Isar (Spanish town, in the province of Burgos) *Foglia, Isauro (Italy) *Isère (river), Isère (France) *Isel (river), Isel (Austria) *IJssel (Netherlands; known to Romans as ''Isala'') *IJzer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsius
The degree Celsius is the unit of temperature on the Celsius temperature scale "Celsius temperature scale, also called centigrade temperature scale, scale based on 0 ° for the melting point of water and 100 ° for the boiling point of water at 1 atm pressure." (originally known as the centigrade scale outside Sweden), one of two temperature scales used in the International System of Units (SI), the other being the closely related Kelvin scale. The degree Celsius (symbol: °C) can refer to a specific point on the Celsius temperature scale or to a difference or range between two temperatures. It is named after the Swedish astronomer Anders Celsius (1701–1744), who proposed the first version of it in 1742. The unit was called ''centigrade'' in several languages (from the Latin ''centum'', which means 100, and ''gradus'', which means steps) for many years. In 1948, the International Committee for Weights and Measures renamed it to honor Celsius and also to rem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volumetric Flow Rate
In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol (sometimes \dot V). Its SI unit is cubic metres per second (m3/s). It contrasts with '' mass flow rate'', which is the other main type of fluid flow rate. In most contexts a mention of "rate of fluid flow" is likely to refer to the volumetric rate. In hydrometry, the volumetric flow rate is known as '' discharge''. The volumetric flow rate across a unit area is called '' volumetric flux'', as defined by Darcy's law and represented by the symbol . Conversely, the integration of a volumetric flux over a given area gives the volumetric flow rate. Units The SI unit is cubic metres per second (m3/s). Another unit used is standard cubic centimetres per minute (SCCM). In US customary units and imperial units, volumetric flow rate is often expressed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bavaria
Bavaria, officially the Free State of Bavaria, is a States of Germany, state in the southeast of Germany. With an area of , it is the list of German states by area, largest German state by land area, comprising approximately 1/5 of the total land area of Germany, and with over 13.08 million inhabitants, it is the list of German states by population, second most populous German state, behind only North Rhine-Westphalia; however, due to its large land area, its population density is list of German states by population density, below the German average. Major cities include Munich (its capital and List of cities in Bavaria by population, largest city, which is also the list of cities in Germany by population, third largest city in Germany), Nuremberg, and Augsburg. The history of Bavaria includes its earliest settlement by Iron Age Celts, Celtic tribes, followed by the conquests of the Roman Empire in the 1st century BC, when the territory was incorporated into the provinces of Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munich
Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is not a state of its own. It ranks as the 11th-largest city in the European Union. The metropolitan area has around 3 million inhabitants, and the broader Munich Metropolitan Region is home to about 6.2 million people. It is the List of EU metropolitan regions by GDP#2021 ranking of top four German metropolitan regions, third largest metropolitan region by GDP in the European Union. Munich is located on the river Isar north of the Alps. It is the seat of the Upper Bavaria, Upper Bavarian administrative region. With 4,500 people per km2, Munich is Germany's most densely populated municipality. It is also the second-largest city in the Bavarian language, Bavarian dialect area after Vienna. The first record of Munich dates to 1158. The city ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisbach Surf
Eisbach may refer to: Places * Eisbach (Styria), a municipality in the district of Graz-Umgebung, Styria, Austria * Eisbach (Gaildorf), village in the borough of Gaildorf, county of Schwäbisch Hall, Baden-Württemberg, Germany * Eisbach (Königswinter), district of Königswinter, Rhein-Sieg-Kreis, North Rhine-Westphalia, Germany * Eisbach (Sulzbach-Laufen), village in Sulzbach-Laufen, county of Schwäbisch Hall, Baden-Württemberg, Germany * Eisbach (Micheldorf), village in Micheldorf in Oberösterreich, district of Kirchdorf an der Krems, Upper Austria Rivers: * Eisbach (Isar), side arm of the Isar, Bavaria, Germany * Eisbach (Kocher), right tributary of the Kocher in Sulzbach-Laufen, county of Schwäbisch Hall, Baden-Württemberg, Germany * Eisbach (Nahe), tributary of the Nahe, Rhineland-Palatinate, Germany * Eisbach (Paar), tributary of the Paar, Bavaria, Germany * Eisbach (Queich), tributary of the Queich, Rhineland-Palatinate, Germany * Eisbach (Rhine), tribut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cubic Feet Per Second
The cubic foot (symbol ft3 or cu ft) , . is an Imperial unit, imperial and (non-metric) , used in the United States and the United Kingdom. It is defined as the volume of a with sides of one () in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liter
The litre ( Commonwealth spelling) or liter ( American spelling) (SI symbols L and l, other symbol used: ℓ) is a metric unit of volume. It is equal to 1 cubic decimetre (dm3), 1000 cubic centimetres (cm3) or 0.001 cubic metres (m3). A cubic decimetre (or litre) occupies a volume of (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit. The word ''litre'' is derived from an older French unit, the '' litron'', whose name came from Byzantine Greek—where it was a unit of weight, not volume—via Late Medieval Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI, despite it not being an SI unit. The SI unit of volume is the cubic metre (m3). The spelling used by the International Bureau of Weights and Measures is "litre", [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
