Whipcracking - Wikipedia

Act of producing a cracking sound with a whip

Whipcracking is the act of producing a cracking sound through the use of a whip. Used during livestock driving and horse riding, it has also become an art. A rhythmic whipcracking belongs to the traditional culture among various Germanic peoples of Bavaria (Goaßlschnalzen), various Alpine areas (Aperschnalzen), Austria, and Hungary (Ostorozás). Today it is a performing art, a part of rodeo show in United States, a competitive sport in Australia and increasingly popular in the United Kingdom, where it crosses boundaries of sport, hobby and performance.

Physics

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The crack a whip makes is produced when a section of the whip moves faster than the speed of sound creating a small sonic boom. The creation of the sonic boom was confirmed in 1958[1] by analyzing the high-speed shadow photography taken in 1927.[2][3]

Recently, an additional, purely geometrical factor was recognized: the tip of the whip moves twice as fast at the loop of the whip, just like the top of a car's wheel moves twice as fast as the car itself.[2][3]

A common explanation is to derive the behavior from the conservation of energy law. However it was noted that the energy is also conserved when the crack sizzles, therefore derivations from purely conservation laws, including conservation of momentum and some others are insufficient.[3]

Based on simulations, the high speed of the tip of the whip has been proposed to be a result of a "chain reaction of levers and blocks".[4]

In 1997, Discover Magazine reported about the possibility of the "whipcracking" effect millions of years ago. As part of the joint computer scientists' and paleontologists' research into the motion of dinosaurs, Nathan Myhrvold, a chief technology officer from Microsoft, carried out a computer simulation of an Apatosaurus, which had a very long, tapering tail resembling a whip. Basing on the reasoning described above, Myhrvold concluded that sauropods were capable of producing a crack comparable to the sound of a cannon.[5] However, in 2022 a more sophisticated model revealed that while some diplodocid dinosaurs could possibly have used their tails as whips, they wouldn't have been able to break the sound barrier. At that speed the caudal vertebrae of the sauropods at the posterior end would simply break.[6]

Shows and competitions

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Goaßlschnalzen

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Goaßlschnalzen, Goaßlschnalzn, Goasslschnoizen is translated as "whip-cracking", from the Bavarian word Goaßl (German: Geißel) for coachwhip. In earlier centuries, the carriage drivers used elaborate crack sequences to signal their approach and to identify them. Over time horse-drawn transport dwindled, but the tradition remained, and coaches practiced their skill in their spare time.

Today the Goaßlschnalzer ("whipsnappers") do concert performances, often as bands that include conventional musical instruments. Whipsnapping is also a traditional sport in Bavaria. There are many whip-cracking associations in Bavaria.

Aperschnalzen

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Aperschnalzen or Apaschnoizn in Bavarian is an old tradition of competitive whipcracking revived in the first half of the 20th century. The word "aper" means "area free of snow", and it has been thought that this tradition had a pagan meaning of "driving the winter away" by whipcracking.

British Whipcracking Convention

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A British Whipcracking Convention is held every year for all skill levels. There are workshops for the differing skill levels as well as competitions and targets. The third convention was held in Aldersley Leisure Village, Aldersley Road, Wolverhampton on 14 July 2007.

Australian sport

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In the latter half of the 20th century, attempts to preserve traditional crafts, along with a resurgence of interest in Western performance arts and the release of films such as Raiders of the Lost Ark (in which the hero, Indiana Jones, uses a bullwhip as a tool), led to an increased interest in whipcracking as a hobby and performance art, as well as a competitive sport. Whip cracking competitions have become popular in Australia. They focus on the completion of complex, multiple-cracking routines and precise target work. Various whips, apart from bullwhips, are used in such competitions. The most common whip used in Australian competitions is an Australian stockwhip, a whip unique to Australia.

• Target routines
  • target cutting
  • object wrapping
  • object moving/manipulation
• Cracking routines
  • Cracking patterns
  • Cracking with two whips

In cracking routines, the judging criteria are the presentation and making audible cracks in prescribed moments.

See also

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• Bullwhip
• Beto Carrero
• Crack the whip
• John Brady
• Indiana Jones
• Fiona Smith
• Stockwhip
• Whip fighting

References

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1. ^ B. Bernstein, D. A. Hall, and H. M. Trent. "On the dynamics of a bull whip", Journal of the Acoustical Society of America 30: 1112-1115 (1958).
2. ^ a b American Physical Society (2002) Whip Cracking Mystery Explained, 26 May 2002 Archived May 26, 2009, at the Wayback Machine
3. ^ a b c Goriely, Alain; McMillen, Tyler (2002-06-03). "Shape of a Cracking Whip" (PDF). Physical Review Letters. 88 (24). American Physical Society (APS): 244-301. Bibcode:2002PhRvL..88x4301G. doi:10.1103/physrevlett.88.244301. ISSN 0031-9007. PMID 12059302. Archived from the original (PDF) on 2016-04-28. Retrieved 2014-10-27.
4. ^ Creating speed Oct 2016
5. ^ "Dinosaur in Motion", Discover November 1997
6. ^ Conti, Simone; Tschopp, Emanuel; Mateus, Octávio; Zanoni, Andrea; Masarati, Pierangelo; Sala, Giuseppe (2022-12-08). "Multibody analysis and soft tissue strength refute supersonic dinosaur tail". Scientific Reports. 12 (1): 19245. doi:10.1038/s41598-022-21633-2. ISSN 2045-2322. PMC 9732322. PMID 36482175.

Further reading

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• Andrew Conway, The New Bullwhip Book, Loompanics Unlimited, 2005. ISBN 1-55950-244-4.
• Robert Dante, Let's Get Cracking! The How-To Book of Bullwhip Skills, CreateSpace, 2008. ISBN 1-4404-0623-5.
• Why Whips Crack

External links

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• The art of whipcracking
• (in German) Aperschnalzen
• The Whip Artistry Studio - Non-combative Whip Arts
• Bullwhip.org
• Brophy Family Whips and lasso artists that have been touring the world for over 30 years
• Canada Whips A resource for whipcrackers worldwide

v t e 4. Aerophones/Wind instruments
41.Free	411. Displacement Sword blade Whipcracking 412. Interruptive 412.1. Idiophonic 412.11. Concussion 412.12. Percussion 412.13. Free reed 412.14. Band/ribbon 412.2. Non-idiophonic 412.21 Rotating 412.22 Whirling 413. Plosive Ghatam Udu
42.Non-free (enclosed)	421. Flute 421.1. Non-fipple 421.11. End-blown 421.12. Side-blown 421.13. Vessel 421.2. Fipple 421.21. External 421.22. Internal 422. Reed 422.1. Double reed 422.11. Single 422.12. Multiple 422.2. Single reed 422.21. Single 422.22. Multiple 422.3. Free reed 422.31. Single 422.32. Multiple 423. Brass 423.1 Natural 423.11. Conch 423.12. Tubular 423.2 Chromatic 423.21. Keyed 423.22. Slide 423.23. Valved

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