Now, the external work of man is of the most varied kind as regards the force or ease, the form and rapidity, of the motions used on it, and the kind of work produced. (Hermann von Helmholtz)

Now, the external work of man is of the most varied kind as regards the force or ease, the form and rapidity, of the motions used on it, and the kind of work produced.

Hermann von Helmholtz

Related topics

ease external force form kind man now rapidity vary work regards

Related quotes