Wells's Natural Philosophy: For the Use of Schools, Academies, and Private Students: Introducing the Latest Results of Scientific Discovery and Research; Arranged with Special Reference to the Practical Application of Physical Science to the Arts and the Experiences of Every-day Life. With Three Hundred and Seventy-five Engravings

Forside
Ivison, Blakeman, Taylor & Company, 1875 - 452 sider
 

Andre utgaver - Vis alle

Vanlige uttrykk og setninger

Populære avsnitt

Side 123 - All the rivers run into the sea; yet the sea is not full; unto the place from whence the rivers come, thither they return again.
Side 72 - Billiards ? and reflected motion, which he has learned by long-continued experience, viz., that the angle of incidence is always equal to the angle of reflection, and that action and reaction are equal and contrary.
Side 331 - If the objects of the material world had been illuminated with white light, all the particles of which possessed the same degree of refrangibility, and were equally acted upon by...
Side 322 - ... lens. 681 . The properties of a concave lens are greatly different from those of a convex lens.
Side 45 - Tbe loss of weight in water, 5 ounces, is the weight of a bulk of water equal to that of the body.
Side 220 - No eider-down In the cradle of an infant is tucked in more kindly than the sleeping-dress of winter about the feeble flower-life of the Arctic regions.
Side 321 - This in a single convex lens is equal to the diameter of the sphere of which the lens is a portion; in...
Side 59 - ... other side, and the spring has to begin its work again. The balance-wheel at each vibration allows one tooth of the adjoining wheel to pass, as the pendulum does in a clock ; and the record of the beats is preserved by the wheel which follows.
Side 333 - What is the cause of this error of judgment ? It is, that the eyes, having seen seven or eight red pieces in succession, are in the same condition as if they had regarded fixedly during the same period of time a single piece of red stuff ; they have then a tendency to see the complementary of red ; that is to say, green.

Bibliografisk informasjon