Dog Whistle: Whistle, Dog Training, Dog, Cat, Frequency, Ultrasound - Couverture souple

 
9786201220249: Dog Whistle: Whistle, Dog Training, Dog, Cat, Frequency, Ultrasound
Couverture souple
ISBN 10 : 6201220240 ISBN 13 : 9786201220249
Editeur : OmniScriptum, 2026

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A dog whistle (also known as silent whistle or Galton's whistle) is a type of whistle used in the training of dogs and cats. It was invented by Francis Galton; the whistle was mentioned in his book Inquiries into Human Faculty and its Development. In his discussion (Galton 1883:26-27) of his experiments to test the range of frequencies that could be heard by various animals, he notes that cats have the most all-round sensitive hearing, being able from a considerable distance to hear notes too high in frequency for humans to hear, and small dogs can also hear these notes, while large dogs cannot.

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Éditeur
OmniScriptum
Date d'édition
2026
Langue
anglais
ISBN 10 
6201220240
ISBN 13 
9786201220249
Reliure
Broché
Nombre de pages
116
Éditeur
Nicolao Hardmod Carlyle
Coordonnées du fabricant
non disponible
Personne responsable
non disponible

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9780190229252: Dog Whistle Politics: How Coded Racial Appeals Have Reinvented Racism and Wrecked the Middle Class

Edition présentée

ISBN 10 :  019022925X ISBN 13 :  9780190229252
Editeur : Oxford University Press, 2015
Couverture souple