# Atoms and electrons

Author: Sullivan, J. W. N. (John William Navin), 1886-1937

Genre: Electrons

Language: English

License: Public domain

Source: https://www.gutenberg.org/ebooks/77675

Amazon editions: https://www.amazon.com/s?k=Atoms+and+electrons+Sullivan&tag=cyberlibrar00-20

## Summary

_Dimensions._—All physical magnitudes are measured in terms of the three fundamental quantities, Length, Mass, Time. When we wish to particularise, we denote these fundamental magnitudes by the letters _L_, _M_, and _T_ respectively. Any magnitude which is not simply a length or a mass or a time is derived from them. Thus an _area_ is a length multiplied by a length. If we wish to express this fact we say that the Dimensions of an Area = _L_ × _L_ = _L_^{2}. Similarly, a velocity is a length divided by a time. Its dimensions are _L_/_T_. An acceleration is the rate of increase of a velocity. A stone falling to the earth has an acceleration, since it is moving faster and faster. An acceler...

## Chapters

- [Chapter IV](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/4/index.md)
- [Chapter II](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/2/index.md)
- [Chapter V](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/5/index.md)
- [Chapter VI](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/6/index.md)
- [Chapter III](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/3/index.md)
- [Chapter VII](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/7/index.md)
- [Chapter I](https://www.cyberlibrary.org/en/books/atoms-and-electrons-77675/chapters/1/index.md)