John Tyndall Quote

When the student of physical science has to investigate the character of any natural force, his first care must be to purify it from the mixture of other forces, and thus study its simple action.


Fragments of Science for Unscientific People, Chapter XIV (p. 383), D. Appleton & Co. 1875

Picture Quote 1

When the student of physical science has to investigate the character of any natural force, his first care must be to purify it from the mixture of...

Picture Quote 2

When the student of physical science has to investigate the character of any natural force, his first care must be to purify it from the mixture of...

Picture Quote 3

When the student of physical science has to investigate the character of any natural force, his first care must be to purify it from the mixture of...

Picture Quote 4

When the student of physical science has to investigate the character of any natural force, his first care must be to purify it from the mixture of...