...invesiigations of Ilelmho'.tz on atmospheric movements, 8llwngtberichte, Bcrllu, Maxwell, and which Lord Eelvin has called the "sorting demon," to pick out from the...not so, and thus without the expenditure of energy PLATE 1V. Wind Velocities recorded February 4, 1898, at the Smithsonian Institution. to construct a...

...gleichförmigem Winde vermieden werden. Die Natur hat aber den Flugtieren ausnahmslos das Mittel verliehen, nicht »to pick out from the internal motions, those whose...force which will act against the main current itself« — sondern das Mittel, durch welches die flugschädlichen Wirkungen aller Unregelmässigkeiten und...

...den Flugtieren ausnahmslos das Mittel verliehen, nitht »to pick out from the internal motions, Ihose whose direction is opposed to the main current. and...force which will act against the main current itself« — sondern das Mittel, durch welches die flugschädlichen Wirkungen aller Unregelmässigkeiten und...

...direction is opposed to the main current, and to omit those which are not so, and thus, without tfie expenditure of energy, to construct a force which...further, and not only admit that it is not necessary to invoke here, as Maxwell has done in the case of thermodynamics, a being having power and rapidity of...

...notable investigations of Helmholtz on Atmospheric movements. Sitxungtberichte. Berlin. 1888 -1889. PART III. — Application. Of these irregular movements...further, and not only admit that it is not necessary to invoke here, as Maxwell has done in the case of thermodynamics, a being having power and rapidity of...

...to pick out from the internal motions those whose direction is opposed to the main current, and lo omit those which are not so, and thus without the...further, and not only admit that it is not necessary to invoke here, as Maxwell has done in the case of thermodynamics, a being having a power and rapidity...