▶ 1821, August 1821, August 31st 1821, Germany, Europe, …the EU,
the world,
the Eurozone,
Western Europe,
Kingdom of Prussia,
the Northern Hemisphere,
Brandenburg,
Potsdam,
Eurasia, Africa-Eurasia,
the G8,
US postal Group 5, the UK European postal area, the Central European Time region
▶ 1894, September 1894, September 8th 1894, Germany, Europe, …the EU,
Berlin,
the world,
German Empire,
the Eurozone,
Western Europe,
the Northern Hemisphere,
Charlottenburg, Africa-Eurasia,
Eurasia,
the G8, the Central European Time region, the UK European postal area,
US postal Group 5
▶ "You all know how powerful and varied are the effects of which steam engines are capable; with them has really begun the great development of industry which has characterised our century before all others."; "Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of the action of velocity. The sails are driven by air in motion - by wind."; "The older view of the nature of heat was that it is a substance, very fine and imponderable indeed, but indestructible, and unchangeable in quantity, which is an essential fundamental property of all matter."; "The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased nor diminished."; "Reason we call that faculty innate in us of discovering laws and applying them with thought."; …"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."; "Not that I wish by any means to deny, that the mental life of individuals and peoples is also in conformity with law, as is the object of philosophical, philological, historical, moral, and social sciences to establish."; "Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet."; "I then endeavoured to show that it is more especially in the thorough conformity with law which natural phenomena and natural products exhibit, and in the comparative ease with which laws can be stated, that this difference exists."; "Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or be useful to us in its practical applications."; "But heat can also be produced by the friction of liquids, in which there could be no question of changes in structure, or of the liberation of latent heat."; "A raised weight can produce work, but in doing so it must necessarily sink from its height, and, when it has fallen as deep as it can fall, its gravity remains as before, but it can no longer do work."; "A moving body whose motion was not retarded by any resisting force would continue to move to all eternity."
