Mud: Difference between revisions
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{{Other uses}} |
{{Other uses}} |
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{{More citations needed|date=January 2022}} |
{{More citations needed|date=January 2022}} |
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[[File:2003-11-27 Northerner boots in mud.jpg|thumb| |
[[File:2003-11-27 Northerner boots in mud.jpg|thumb|upright=1.35|A pair of muddy [[Wellington boot|wellington boots]]]] |
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[[File:Gamo Mud Volcano 3.jpg|thumb|Gamo mud volcano in [[Tokamachi]], Japan]] |
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'''Mud''' |
'''Mud''' (probably {{etymology|gml|mudde, mod(de)|thick mud}}, or [[Middle Dutch]])<ref>{{Cite web |title=mud {{!}} Etymology of mud by etymonline |url=https://www.etymonline.com/word/mud#etymonline_v_19211 |access-date=2024-12-19 |website=www.etymonline.com |language=en}}</ref> is [[loam]], [[silt]] or [[clay]] mixed with [[water]]. It is usually formed after [[rain]]fall or near water sources. Ancient mud deposits hardened over [[geologic time scale|geological time]] to form [[sedimentary rock]] such as [[shale]] or [[mudstone]] (generally called [[lutite]]s). When geological deposits of mud are formed in [[estuaries]], the resultant layers are termed [[bay mud]]s. Mud has also been used for [[Century|centuries]] as a [[construction]] resource for mostly houses and also used as a binder. |
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== Building and construction == |
== Building and construction == |
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=== Adhesive === |
=== Adhesive === |
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⚫ | In the [[construction]] industry, mud is a semi-fluid material that can be used to coat, seal, or adhere materials.<ref name=":0">{{Cite web |last=Mahajan |first=Bhushan |date=2020-06-01 |title=15 Types Of Building Materials Used In Construction |url=https://civiconcepts.com/blog/types-of-building-materials |access-date=2023-10-21 |language=en-GB}}</ref> The term "mud" can be used for various semi-fluid materials used in construction including [[slurry]], [[mortar (masonry)|mortar]], [[plaster]], [[stucco]], and [[concrete]].<ref name=":0" /> |
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⚫ | In the [[construction]] industry, mud is a semi-fluid material that can be used to coat, seal, or adhere materials.<ref>{{Cite web |last=Mahajan |first=Bhushan |date=2020-06-01 |title=15 Types Of Building Materials Used In Construction |url=https://civiconcepts.com/blog/types-of-building-materials |access-date=2023-10-21 |language=en-GB}}</ref> The term "mud" can be used for various semi-fluid materials used in construction including [[slurry]], [[mortar (masonry)|mortar]], [[plaster]], [[stucco]], and [[concrete]]. |
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=== Material === |
=== Material === |
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=== Marine life === |
=== Marine life === |
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Mud plays an important role in the [[marine ecosystem]]. The activities of [[burrow]]ing [[animal]]s and [[fish]] have a dramatic churning effect on muddy [[seabed]]s. This allows the exchange and cycling of [[oxygen]], [[nutrient]]s, and [[mineral]]s between [[water]] and [[sediment]].<ref name="auto">A summary of the ‘Burrowed Mud’ MPA search feature. (n.d.). Retrieved January 13, 2015, from http:// |
Mud plays an important role in the [[marine ecosystem]]. The activities of [[burrow]]ing [[animal]]s and [[fish]] have a dramatic churning effect on muddy [[seabed]]s. This allows the exchange and cycling of [[oxygen]], [[nutrient]]s, and [[mineral]]s between [[water]] and [[sediment]].<ref name="auto">A summary of the ‘Burrowed Mud’ MPA search feature. (n.d.). Retrieved January 13, 2015, from http://www.scotland.gov.uk/Resource/0039/00394205.doc{{Dead link|date=February 2022 |bot=InternetArchiveBot |fix-attempted=yes }} &cd=3&hl=en&ct=clnk&gl=us</ref> |
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Below the surface, the burrows of some [[species]] form intricate lattice-like networks and may penetrate a [[meter]] or more downwards. This means that the burrowed mud is a productive [[habitat]], providing [[food]] and shelter for a wide range of mud-dwellers and other animals that forage in and over the mud.<ref name="auto" /> |
Below the surface, the burrows of some [[species]] form intricate lattice-like networks and may penetrate a [[meter]] or more downwards. This means that the burrowed mud is a productive [[habitat]], providing [[food]] and shelter for a wide range of mud-dwellers and other animals that forage in and over the mud.<ref name="auto" /> |
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== As food == |
== As food == |
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[[Geophagia]] is the practice of eating earth or soil-like substances, also known as geophagy, and is practiced by some non-human primates and by humans in some cultures. In other human cultures it is considered an eating disorder and classed as [[Pica (disorder)|Pica]].<ref>{{Cite journal | author= Ziegler, J.| year=1997 | title=Geophagia: a vestige of paleonutrition?| journal=Tropical Medicine and International Health| volume=2 |issue=7 |pages=609–611 |doi= 10.1046/j.1365-3156.1997.d01-359.x |pmid= 9270727 |s2cid=71822543 |doi-access=free }}</ref><ref>{{cite journal |last1=Fack |first1=Vinciane |last2=Shanee |first2=Sam |last3=Vercauteren Drubbel |first3=Régine |last4=Vercauteren |first4=Martine |last5=Meunier |first5=Hélène |title=Geophagy in the yellow-tailed woolly monkey (Lagothrix flavicauda) at La Esperanza, Peru: site characterization and soil composition |journal=Primates |date=May 2020 |volume=61 |issue=3 |pages=507–518 |doi=10.1007/s10329-020-00802-9 |pmid=32095910 |s2cid=211253699 }}</ref> |
[[Geophagia]] is the practice of eating earth or soil-like substances, also known as geophagy, and is practiced by some non-human primates and by humans in some cultures. In other human cultures it is considered an eating disorder and classed as [[Pica (disorder)|Pica]].<ref>{{Cite journal | author= Ziegler, J.| year=1997 | title=Geophagia: a vestige of paleonutrition?| journal=Tropical Medicine and International Health| volume=2 |issue=7 |pages=609–611 |doi= 10.1046/j.1365-3156.1997.d01-359.x |pmid= 9270727 |s2cid=71822543 |doi-access=free }}</ref><ref>{{cite journal |last1=Fack |first1=Vinciane |last2=Shanee |first2=Sam |last3=Vercauteren Drubbel |first3=Régine |last4=Vercauteren |first4=Martine |last5=Meunier |first5=Hélène |title=Geophagy in the yellow-tailed woolly monkey (Lagothrix flavicauda) at La Esperanza, Peru: site characterization and soil composition |journal=Primates |date=May 2020 |volume=61 |issue=3 |pages=507–518 |doi=10.1007/s10329-020-00802-9 |pmid=32095910 |s2cid=211253699 }}</ref> |
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===Foods named "mud" === |
===Foods named "mud" === |
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[[Mississippi mud pie]] is a chocolate based dessert pie.<ref>{{cite web |title=Mississippi mud pie |url=https://www.bbcgoodfood.com/recipes/mississippi-mud-pie |website=BBC Good Food |access-date=19 December 2022 |language=en}}</ref> Children's recipes for "mud" also exist, which is generally a chocolate or cornstarch-based sludge used more for visual appeal than actual taste. However, it does not contain real mud.<ref>{{cite web |url=http://www.cookadvice.com/recipes/magic_mud-36597-recipe.htm |title=Magic mud food recipe – Magic mud ingredients & cooking |publisher=Cookadvice.com |date=2 September 2012 |access-date=26 December 2012 |archive-url=https://web.archive.org/web/20120320014931/http://www.cookadvice.com/recipes/magic_mud-36597-recipe.htm |archive-date=20 March 2012 |url-status=dead }}</ref> |
[[Mississippi mud pie]] is a chocolate based dessert pie.<ref>{{cite web |title=Mississippi mud pie |url=https://www.bbcgoodfood.com/recipes/mississippi-mud-pie |website=BBC Good Food |access-date=19 December 2022 |language=en}}</ref> [[Mud cookie]]s (baked from literal dirt mixed with oil, water, etc.) are also eaten in the poorest parts of [[Haiti]]. Children's recipes for "mud" also exist, which is generally a [[chocolate]] or [[cornstarch]]-based sludge used more for visual appeal than actual taste. However, it does not contain real mud.<ref>{{cite web |url=http://www.cookadvice.com/recipes/magic_mud-36597-recipe.htm |title=Magic mud food recipe – Magic mud ingredients & cooking |publisher=Cookadvice.com |date=2 September 2012 |access-date=26 December 2012 |archive-url=https://web.archive.org/web/20120320014931/http://www.cookadvice.com/recipes/magic_mud-36597-recipe.htm |archive-date=20 March 2012 |url-status=dead }}</ref> "Mud" is also a colloquial [[slang]] word for [[coffee]], especially when thick, strong, and/or dark.<ref>{{Cite web |last=Team |first=Namesflare |date=2024-06-14 |title=Slang Names For Coffee |url=https://namesflare.com/slang-names-for-coffee/ |access-date=2024-12-16 |language=en-US}}</ref> |
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== Recreation == |
== Recreation == |
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[[File:Silek Lanyah 2020 - Two men performing martial art in a stream.jpg|thumb|People doing martial arts in the mud]] |
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{{unref section|date=December 2022}} |
{{unref section|date=December 2022}} |
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=== Mud bath === |
=== Mud bath === |
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=== Mud wallow === |
=== Mud wallow === |
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Mud wallows are a common source of entertainment for [[children]]. Mud wallows can be any shape, size, depth and some can have [[water]] as well as mud. Usually wallows are shallow dips in the ground that have been [[flood]]ed and were full of [[dirt]] and those two have mixed to make a squishy mud wallow. |
Mud wallows are a common source of entertainment for [[children]]. Mud wallows can be any shape, size, depth and some can have [[water]] as well as mud. Usually wallows are shallow dips in the ground that have been [[flood]]ed and were full of [[dirt]] and those two have mixed to make a squishy mud wallow. |
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===Mud sports=== |
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{{Main|Mud |
{{Main|Mud sports}} |
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Mud sports are sports that take place in, or heavily incorporate, mud.<ref name="s805">{{cite journal | last1=DeNizio | first1=Jamie E. | last2=Hewitt | first2=David A. | title=Infection from Outdoor Sporting Events—More Risk than We Think? | journal=Sports Medicine - Open | publisher=Springer Science and Business Media LLC | volume=5 | issue=1 | date=2019-08-14 | issn=2199-1170 | doi=10.1186/s40798-019-0208-x | doi-access=free | page=37| pmid=31414195 | pmc=6694362 }}</ref><ref name="q030">{{cite web | last=Mai | first=Ann | title=Dirty never felt so good: Six reasons to play in the mud | website=The Shorthorn | date=2013-10-02 | url=https://www.theshorthorn.com/life_and_entertainment/dirty-never-felt-so-good-six-reasons-to-play-in-the-mud/article_e0c8bd2a-27e4-11e3-b948-001a4bcf6878.html | access-date=2024-08-28}}</ref><ref name="l382">{{cite web | title=Details released for Rotorua's inaugural Mudtopia festival | website=NZ Herald | date=2017-03-27 | url=https://www.nzherald.co.nz/rotorua-daily-post/news/rotoruas-mudtopia-mud-and-music-festival-details-revealed/ZEOFIAROTKTFAYY7UQVHGUJLTA/ | access-date=2024-08-28}}</ref> Examples include: |
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Mud bogging |
*[[Mud bogging]], an [[off-roading|off-road motorsport]] popular in [[Canada]] and the [[United States]] in which the goal is to drive a vehicle through a pit of mud or a track of a set length. |
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*[[Mud run]]s, where contestants run and crawl through mud bogs and other obstacles. |
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*[[Mud wrestling]], a form of wrestling that takes place in mud. |
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=== Other uses === |
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Mud runs are a popular activity involving mud. Participants run a distance of {{convert|5|km|mi|sigfig=1}} to as long as {{convert|20|km|mi|sigfig=1}}, while crawling through mud bogs, and battling other obstacles.<ref>{{cite web|url=http://www.toughmudder.com|title=Mud Run – Obstacle Races – Tough Mudder|work=Tough Mudder|access-date=15 October 2014|archive-url=https://web.archive.org/web/20141015195437/https://toughmudder.com/|archive-date=15 October 2014|url-status=dead}}</ref><ref>{{cite web|url=http://www.cerebrun.com|title=Cerebrun – Get Mental|work=Cerebrun|access-date=15 October 2014}}</ref><ref>{{cite web|url=http://www.warriordash.com|title=Warrior Dash – The World's Largest Obstacle Race Series|work=Warrior Dash|access-date=15 October 2014|archive-url=https://web.archive.org/web/20140912200104/https://www.warriordash.com/|archive-date=12 September 2014|url-status=dead}}</ref> |
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=== Other === |
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* Mud is used in mud [[wrestling]] as a form of [[entertainment]]. |
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* Mud can be used in a [[dunk tank]]. |
* Mud can be used in a [[dunk tank]]. |
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* [[Baseball rubbing mud]] is used to remove the sheen from new [[baseballs]]. |
* [[Baseball rubbing mud]] is used to remove the sheen from new [[baseballs]]. |
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* Children often like to make [[mud pie|mud pies]], throw mud at each other and play barefoot and cover their bare [[feet]] in mud and squish it between their toes. |
* Children often like to make [[mud pie|mud pies]], throw mud at each other and play barefoot and cover their bare [[feet]] in mud and squish it between their toes. |
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* [[Albuquerque]] and other towns across the United States such as [[Gillette, Wyoming]], hold a [[year]]ly event in which participants play [[volleyball]] in a giant mud pit. |
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*Mud can be smeared across the [[skin]] as a repellent from [[mosquito]]es. |
*Mud can be smeared across the [[skin]] as a repellent from [[mosquito]]es. |
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*Many animals cover themselves in mud ([[wallowing]]) to cool off. |
*Many animals cover themselves in mud ([[wallowing]]) to cool off. |
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* {{cite book |last=Okonkwo |first=Festus |date=2009 |title=Introductory Mud Engineering Handbook |publisher=Booksurge Publishing |isbn=9781439227275}} |
* {{cite book |last=Okonkwo |first=Festus |date=2009 |title=Introductory Mud Engineering Handbook |publisher=Booksurge Publishing |isbn=9781439227275}} |
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* {{cite book|last1=Rael|first1=Ronald|title=Earth architecture|date=2009|publisher=Princeton Architectural Press|location=New York, N.Y.|isbn=978-1-56898-767-5|edition=1st|url-access=registration|url=https://archive.org/details/eartharchitectur0000rael}} |
* {{cite book|last1=Rael|first1=Ronald|title=Earth architecture|date=2009|publisher=Princeton Architectural Press|location=New York, N.Y.|isbn=978-1-56898-767-5|edition=1st|url-access=registration|url=https://archive.org/details/eartharchitectur0000rael}} |
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==External links== |
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{{Authority control}} |
{{Authority control}} |
Latest revision as of 01:08, 19 December 2024
This article needs additional citations for verification. (January 2022) |
Mud (probably from Middle Low German mudde, mod(de) 'thick mud', or Middle Dutch)[1] is loam, silt or clay mixed with water. It is usually formed after rainfall or near water sources. Ancient mud deposits hardened over geological time to form sedimentary rock such as shale or mudstone (generally called lutites). When geological deposits of mud are formed in estuaries, the resultant layers are termed bay muds. Mud has also been used for centuries as a construction resource for mostly houses and also used as a binder.
Building and construction
[edit]Adhesive
[edit]In the construction industry, mud is a semi-fluid material that can be used to coat, seal, or adhere materials.[2] The term "mud" can be used for various semi-fluid materials used in construction including slurry, mortar, plaster, stucco, and concrete.[2]
Material
[edit]Mud, cob, adobe, clay, and many other names are historically used synonymously to mean a mixture of subsoil and water possibly with the addition of stones, gravel, straw, lime, and/or bitumen. This material was used a variety of ways to build walls, floors and even roofs. For thousands of years it was common in most parts of the world to build walls using mudbricks or the wattle and daub, rammed earth or cob techniques and cover the surfaces with earthen plaster.
Mudbrick
[edit]Mud can be made into mud bricks, also called adobe, by mixing mud with water, placing the mixture into moulds and then allowing it to dry in open air.[3] Straw is sometimes used as a binder within the bricks, as it makes them a composite. When the brick would otherwise break, the straw will redistribute the force throughout the brick, decreasing the chance of breakage.[4] Such buildings must be protected from groundwater, usually by building upon a masonry, fired brick, rock or rubble foundation, and also from wind-driven rain in damp climates, usually by deep roof overhangs. In extremely dry climates a well-drained flat roof may be protected with a well-prepared (puddled) and properly maintained dried mud coating, viable as the mud will expand when moistened and so become more water resistant.[5] Adobe mudbricks were commonly used by the Pueblo Indians to build their homes and other necessary structures. In some countries there are entire cities made of mud brick houses. Cow dung and biomass are added to regulate indoor climate.[6]
Fired brick
[edit]Mud that is mostly clay, or a mixture of clay and sand may be used for ceramics, of which one form is the common fired brick. Fired brick are more durable but consume much more energy to produce.
Stabilized mud
[edit]Stabilized mud (earth, soil) is mud which has had a binder such as cement or bitumen added. Examples are mudcrete, landcrete, and soil cement.
Pottery
[edit]Pottery is made by forming a clay body into objects of a required shape and heating them to high temperatures in a kiln which removes all the water from the clay, which induces reactions that lead to permanent changes including increasing their strength and hardening and setting their shape. A clay body can be decorated before or after firing. Prior to some shaping processes, clay must be prepared. Kneading helps to ensure an even moisture content throughout the body. Air trapped within the clay body needs to be removed. This is called de-airing and can be accomplished by a machine called a vacuum pug or manually by wedging. Wedging can also help produce an even moisture content. Once a clay body has been kneaded and de-aired or wedged, it is shaped by a variety of techniques. After shaping it is dried and then fired.
In ceramics, the making of liquid mud (called slip) is a stage in the process of refinement of the materials, since larger particles will settle from the liquid.
Habitat
[edit]This section needs expansion. You can help by adding to it. (January 2011) |
Land
[edit]Mud can provide a home for numerous types of animals, including varieties of worms, frogs, snails, clams, and crayfish. Other animals, such as hippopotamuses, pigs, rhinoceroses, water buffalo and elephants, bathe in mud in order to cool off and protect themselves from the sun. Submerged mud can be home to larvae of various insects.
Marine life
[edit]Mud plays an important role in the marine ecosystem. The activities of burrowing animals and fish have a dramatic churning effect on muddy seabeds. This allows the exchange and cycling of oxygen, nutrients, and minerals between water and sediment.[7]
Below the surface, the burrows of some species form intricate lattice-like networks and may penetrate a meter or more downwards. This means that the burrowed mud is a productive habitat, providing food and shelter for a wide range of mud-dwellers and other animals that forage in and over the mud.[7]
Problems
[edit]Mud can pose problems for motor traffic when moisture is present, because every vehicle function that changes direction or speed relies on friction between the tires and the road surface, so a layer of mud on the surface of the road or tires can cause the vehicle to hydroplane. People and cars can also become stuck in mud, as in quicksand.
Heavy rainfall, snowmelt, or high levels of groundwater may trigger a movement of soil or sediments, possibly causing mudslides, landslides, avalanches, or sinkholes. Mudslides in volcanic terrain (called lahars) occur after eruptions as rain remobilizes loose ash deposits.[8] Mudslides are also common in the western United States during El Niño years due to prolonged rainfall.
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A landslide on a railroad
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Vehicle in mud after heavy rainfall (Democratic Republic of the Congo)
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Mud was a decisive factor in the infamous Battle of Passchendaele in 1917.
As food
[edit]Geophagia is the practice of eating earth or soil-like substances, also known as geophagy, and is practiced by some non-human primates and by humans in some cultures. In other human cultures it is considered an eating disorder and classed as Pica.[9][10]
Foods named "mud"
[edit]Mississippi mud pie is a chocolate based dessert pie.[11] Mud cookies (baked from literal dirt mixed with oil, water, etc.) are also eaten in the poorest parts of Haiti. Children's recipes for "mud" also exist, which is generally a chocolate or cornstarch-based sludge used more for visual appeal than actual taste. However, it does not contain real mud.[12] "Mud" is also a colloquial slang word for coffee, especially when thick, strong, and/or dark.[13]
Recreation
[edit]Mud bath
[edit]A mud bath is a bath of mud, commonly from areas where hot spring water can combine with volcanic ash. Mud baths have existed for thousands of years, and can be found now in high-end spas.
Mud wallow
[edit]Mud wallows are a common source of entertainment for children. Mud wallows can be any shape, size, depth and some can have water as well as mud. Usually wallows are shallow dips in the ground that have been flooded and were full of dirt and those two have mixed to make a squishy mud wallow.
Mud sports
[edit]Mud sports are sports that take place in, or heavily incorporate, mud.[14][15][16] Examples include:
- Mud bogging, an off-road motorsport popular in Canada and the United States in which the goal is to drive a vehicle through a pit of mud or a track of a set length.
- Mud runs, where contestants run and crawl through mud bogs and other obstacles.
- Dirt biking, biking through muddy tracks and courses.
- Mud wrestling, a form of wrestling that takes place in mud.
Other uses
[edit]- Mud can be used in a dunk tank.
- Baseball rubbing mud is used to remove the sheen from new baseballs.
- Children often like to make mud pies, throw mud at each other and play barefoot and cover their bare feet in mud and squish it between their toes.
- Mud can be smeared across the skin as a repellent from mosquitoes.
- Many animals cover themselves in mud (wallowing) to cool off.
See also
[edit]References
[edit]- ^ "mud | Etymology of mud by etymonline". www.etymonline.com. Retrieved 2024-12-19.
- ^ a b Mahajan, Bhushan (2020-06-01). "15 Types Of Building Materials Used In Construction". Retrieved 2023-10-21.
- ^ admin_666 (29 July 2013). "Mud brick". yourhome.gov.au.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ Smith, Michael G. The Cobber’s Companion: How to Build Your Own Earthen Home. Cottage Grove: Cob Cottage, 1998. Print.
- ^ "Preservation Brief 5: Preservation of Historic Adobe Buildings". nps.gov.
- ^ Bricks made out of mud and cow-dung to regulate indoor climate
- ^ a b A summary of the ‘Burrowed Mud’ MPA search feature. (n.d.). Retrieved January 13, 2015, from http://www.scotland.gov.uk/Resource/0039/00394205.doc[permanent dead link ] &cd=3&hl=en&ct=clnk&gl=us
- ^ "Mud on the Move." Earth: The Definitive Visual Guide. London: Dorling Kindersley, 2013. 98. Print.
- ^ Ziegler, J. (1997). "Geophagia: a vestige of paleonutrition?". Tropical Medicine and International Health. 2 (7): 609–611. doi:10.1046/j.1365-3156.1997.d01-359.x. PMID 9270727. S2CID 71822543.
- ^ Fack, Vinciane; Shanee, Sam; Vercauteren Drubbel, Régine; Vercauteren, Martine; Meunier, Hélène (May 2020). "Geophagy in the yellow-tailed woolly monkey (Lagothrix flavicauda) at La Esperanza, Peru: site characterization and soil composition". Primates. 61 (3): 507–518. doi:10.1007/s10329-020-00802-9. PMID 32095910. S2CID 211253699.
- ^ "Mississippi mud pie". BBC Good Food. Retrieved 19 December 2022.
- ^ "Magic mud food recipe – Magic mud ingredients & cooking". Cookadvice.com. 2 September 2012. Archived from the original on 20 March 2012. Retrieved 26 December 2012.
- ^ Team, Namesflare (2024-06-14). "Slang Names For Coffee". Retrieved 2024-12-16.
- ^ DeNizio, Jamie E.; Hewitt, David A. (2019-08-14). "Infection from Outdoor Sporting Events—More Risk than We Think?". Sports Medicine - Open. 5 (1). Springer Science and Business Media LLC: 37. doi:10.1186/s40798-019-0208-x. ISSN 2199-1170. PMC 6694362. PMID 31414195.
- ^ Mai, Ann (2013-10-02). "Dirty never felt so good: Six reasons to play in the mud". The Shorthorn. Retrieved 2024-08-28.
- ^ "Details released for Rotorua's inaugural Mudtopia festival". NZ Herald. 2017-03-27. Retrieved 2024-08-28.
Further reading
[edit]- P.J. Depetris; P.E. Potter; J.B. Maynard (2005). Mud and mudstones introduction and overview (1 ed.). Berlin [u.a.]: Springer. ISBN 3-540-27082-5.
- Wood, C.E. (2006). Mud a military history (1st ed.). Washington, D.C.: Potomac Books. ISBN 9781612343310.
- C.L.V. Monty; D.W.J. Bosence; P.H. Bridger; B.R. Pratt, eds. (1995). Carbonate Mud-Mounds Their Origin and Evolution. Chichester: John Wiley & Sons. ISBN 1-4443-0412-7.
- Okonkwo, Festus (2009). Introductory Mud Engineering Handbook. Booksurge Publishing. ISBN 9781439227275.
- Rael, Ronald (2009). Earth architecture (1st ed.). New York, N.Y.: Princeton Architectural Press. ISBN 978-1-56898-767-5.