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Temperature is important for snowball formation. It is hard to make a good snowball if the snow is too cold. In addition, snowballs are difficult to form with a dry powdery snow. In temperatures below 0 °C (32 °F), there is little free water in the snow, which leads to crumbly snowballs. At
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When forming a snowball by packing, the pressure exerted by the hands on the snow is a determinant for the final result. Reduced pressure leads to a light and soft snowball. Compacting humid or "packing" snow by applying a high pressure produces a harder snowball, sometimes called an ice ball, which
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A snowball may also be a large ball of snow formed by rolling a smaller snowball on a snow-covered surface. The smaller snowball grows by picking up additional snow as it rolls. The terms "
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0 °C (32 °F) or above, melted water in the snow results in a better cohesion. Above a certain temperature, however, the snowball too easily becomes
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Luo, Jian (2012-01-16). "Developing
Interfacial Phase Diagrams for Applications in Activated Sintering and Beyond: Current Status and Future Directions".
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57:, usually created by scooping snow with the hands and pressing the snow together to compact it into a ball. Snowballs are often used in games such as
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Does
Anything Eat Wasps?: And 101 Other Unsettling, Witty Answers to Questions You Never Thought You Wanted to Ask
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The ground must have a top layer of ice. This will prevent the snowball from sticking to the ground.
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in 1842, examining the attractive forces between ice particles. An influential early explanation by
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Steinkogler, Walter; Gaume, Johan; Löwe, Henning; Sovilla, Betty; Lehning, Michael (2014).
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In
Antarctica, small windblown frost balls form through a different process that relies on
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A snowball that turns into a child is a protagonist in a 1969 children's fantasy novel,
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428:. International Snow Science Workshop. Baniff. pp. 733–737. Archived from
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form as a result of wind, without human intervention. These circumstances are:
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553:"Thousands of Snowballs on This Siberian Beach Are Straight From a Fairy Tale"
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That ice must have some wet and loose snow that is near its melting point.
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The wind must be strong enough to push the snowballs, but not too strong.
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68:" and "snowballing" are derived from this process. The Welsh dance "
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The underlying physical process that makes snowballs possible is
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Morag
Challenor (2006). "No-Ball Snow". In New Scientist (ed.).
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Granulation of Snow: Experiments and
Discrete Element Modeling
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Under other rare circumstances, in coastal and river areas,
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A medieval image from Italy of people throwing snowballs (
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104:can injure an opponent during a snowball fight.
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506:Rare self-rolling giant snow balls found in UK
377:Gliding for Gold: The Physics of Winter Sports
159:on ice and snow may create beach snowballs or
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148:; these wind-rolled frost balls are known as
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27:Spherical object made from compacted snow
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458:. Simon and Schuster. p. 157.
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551:Emerson, Sarah (8 November 2016).
527:"Charging of ice-vapor interfaces"
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525:J. Nelson & M. Baker (2003).
515:, The Telegraph, January 8, 2010
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323:Schmitz, Kenneth S (2016).
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329:. Elsevier. p. 206.
32:Snowball (disambiguation)
352:"Windham | Y Gaseg Eira"
146:electrostatic attraction
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571:8 November
561:Vice Media
361:2023-09-22
307:References
213:denivation
187:Yukimarimo
150:yukimarimo
93:regelation
41:A snowball
350:Windham.
81:sintering
51:spherical
18:Snowballs
590:Archived
565:Archived
540:: 41–73.
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175:Ball ice
161:ball ice
91:invoked
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238:Gallery
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289:Winter
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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