alternation

UK
/ˌɔːltəˈneɪʃən/
US
/ˌɑːltərˈneɪʃən/

Library

“produce alternations in the flow thereof” +4
physics
перемена направления тока
смена направления тока
чередование
чередование направления тока
Alternation — это одно изменение направления тока; в тексте число таких чередований в секунду используется для описания частоты.
Electricity for Boys
"Electricity for Boys" by James Slough Zerbe is a practical guide written in the early 20th century. This work falls within the category of educational publications aimed at teaching young boys the fundamental concepts and applications of electricity through hands-on experiments. It emphasizes the importance of practical experience and experimentation over theoretical knowledge alone. The beginning of the text introduces the fascinating world of electricity, stressing the value of learning through practical application while experimenting with various tools and techniques. Zerbe explains that electricity can be understood better when boys engage directly with the material rather than through rote memorization of its principles. He lays out the book's fundamental approach to education, which involves experimenting, building, and discovering the principles that govern electrical phenomena. This foundational philosophy sets the stage for the more detailed chapters on specific electrical concepts and devices, reflecting a broader goal of fostering critical thinking and hands-on learning among young readers.
Electricity for Boys
the cyclical alternation of the seasons
ecology
чередование
Описывает повторяющуюся смену времён года.
Environmental Humanities in India
This collection examines environmental questions in India through literature, culture, Indigenous knowledge and the arts. Its essays explore relationships between people and landscapes, conservation, ecological justice and representations of environmental change.
Environmental Humanities in India
the cyclical alternation of the seasons
anthropology
циклическая смена времён года
Повторяющаяся смена времён года, представленная здесь как часть проявлений природы.
Environmental Humanities in India
This collection examines environmental questions in India through literature, culture, Indigenous knowledge and the arts. Its essays explore relationships between people and landscapes, conservation, ecological justice and representations of environmental change.
Environmental Humanities in India
to increase the periods of alternation
electricity
периоды чередования
Повторяющиеся интервалы или циклы изменения переменного электрического тока.
Electricity for Boys
"Electricity for Boys" by James Slough Zerbe is a practical guide written in the early 20th century. This work falls within the category of educational publications aimed at teaching young boys the fundamental concepts and applications of electricity through hands-on experiments. It emphasizes the importance of practical experience and experimentation over theoretical knowledge alone. The beginning of the text introduces the fascinating world of electricity, stressing the value of learning through practical application while experimenting with various tools and techniques. Zerbe explains that electricity can be understood better when boys engage directly with the material rather than through rote memorization of its principles. He lays out the book's fundamental approach to education, which involves experimenting, building, and discovering the principles that govern electrical phenomena. This foundational philosophy sets the stage for the more detailed chapters on specific electrical concepts and devices, reflecting a broader goal of fostering critical thinking and hands-on learning among young readers.
Electricity for Boys
alternations of temperature in the machine itself
engineering
колебания
В этом контексте слово обозначает изменения температуры, которые могли повлиять на механизм.
Men of Invention and Industry
"Men of Invention and Industry" by Samuel Smiles is a historical account likely written in the late 19th century. The book examines the lives and contributions of various inventors and industrialists, highlighting their impact on society, particularly within British industry, with an emphasis on significant advancements such as shipbuilding and steam power. The opening of the book sets the stage with a discussion of the early history of English shipbuilding, beginning with the figure of Phineas Pett. It explores the humble beginnings of the British navy and the advancements made under historical figures like Henry VIII. Various early challenges in shipbuilding are elucidated, alongside the importance of foreign expertise in developing England’s maritime capabilities. The narrative illustrates a shift from a heavy reliance on importing goods and expertise to a burgeoning English independence in shipbuilding and trade, paving the way for a stronger national identity tied to maritime innovation.
Men of Invention and Industry