Matter and Energy |
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a-particles a-rays amount atomic weight Avogadro's carbon chemical chemistry civilisation coal combined compounds conservation contains converted cooling cules definite direction discovery earth elec electric charges electric energy electrons elements energy of motion equipartition of energy evolved existence flow force fundamental gases gram gravitation Group heat energy helium hydrogen increase inertia kind kinetic energy known latent heat less light liquid magnetic lines mass material matter means measured mechanical energy ment metal million minerals modern mole molecular molecules moving natural negative nitrogen oxygen pellation perature period perpetual motion phenomena physical pole position possess possible potential energy pressure produced properties proportion pure quantity radiation radioactivity radium radium emanation rays recognised second law simple single atoms space steam substance supply termed things thorium tion tractation transmutation tricity tube uniform temperature unit uranium utilisation vacuum vacuum tube velocity whilst whole wire X-rays y-rays
Popular passages
Page 19 - Universe, ah me ! — what could the wild man know of it ; what can we yet know ? That it is a Force, and thousandfold Complexity of Forces ; a Force which is not we. That is all ; it is not we, it is altogether different from us. Force, Force, everywhere Force ; we ourselves a mysterious Force in the centre of that. " There is not a leaf rotting on the highway but has Force in it : how else could it rot?
Page 208 - Natural causes, as we know, are at work, which tend to modify, if they do not at length destroy, all the arrangements and dimensions of the earth and the whole solar system. But though in the course of ages catastrophes have occurred, and may yet occur in the heavens; though ancient systems may be dissolved and new systems evolved out of their ruins; the molecules out of which these systems are built — the foundation stones of the material universe — remain unbroken and unworn.
Page 56 - Avogadro's law states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules...
Page 11 - They necessarily come first ... in the whole record of human experience, and they control, in the last resort, the rise or fall of political systems, the freedom or bondage of nations, the movements of commerce and industry, the origin of wealth and poverty and the general physical welfare of the race.
Page 41 - Deep down somewhere in the processes of thought the ultimate test of reality appears to be the Law of Conservation.
Page 247 - It looks ... as if our successors would witness an interesting race, between the progress of science on the one hand and the depletion of natural resources upon the other
Page 16 - INVESTIGATIONS in radioactivity since 1896 have effected a marvellous revolution in our knowledge of Energy. The ultimate atoms of matter are now believed to possess "sufficient potential energy to supply the uttermost ambitions of the race for cosmical epochs of time.
Page 2 - AN INTRODUCTION TO SCIENCE By J. ARTHUR THOMSON EVOLUTION By J. ARTHUR THOMSON and PATRICK GEDDES THE ANIMAL WORLD By FW GAMBLE INTRODUCTION TO MATHEMATICS By AN WHITEHEAD...
Page 2 - By AR HINKS PSYCHICAL RESEARCH . . . . By WF BARRETT THE EVOLUTION OF PLANTS By DH SCOTT CRIME AND INSANITY . . . . By CA MERCIER MATTER AND ENERGY .... By F.
Page 16 - The ultimate atoms of matter are now believed to possess "sufficient potential energy to supply the uttermost ambitions of the race for cosmical epochs of time." Speaking of these new discoveries in connection with radioactivity, Professor Soddy remarks in his "Matter and Energy": "It is possible to look forward to a time, which may await the world, when this grimy age of fuel will seem as truly a beginning of the mastery of energy as the rude stone age of palaeolithic man now appears as the beginning...