ferrous

UK
/ˈfɛr.əs/
US
/ˈfɛr.əs/

Library

When oxygen, in a free or gaseous state, comes into contact with iron, it produces ferrous oxide, which is recognized as rust.
chemistry
железистый (двухвалентный)
Химическое прилагательное, обозначающее железо в двухвалентном состоянии; здесь оно определяет слово oxide.
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
When oxygen, in a free or gaseous state, comes into contact with iron, it produces ferrous oxide, which is recognized as rust.
chemistry
оксид железа(II)
Оксид железа, в котором железо имеет степень окисления +2.
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