Matter And Energy

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MATTER AND ENERGY - 1911 - CONTENTS - V POTENTIAL AN D CHEMICA E L N ERG . Y . . V1 ELE R A O ND N S X-RAYS . . . . . . . V11 INERTIA . . . . . . . . . . . . . V111 RADIATION . . . . . . . . . . . . G PERIODIC TABLE J 0. . Hdum He899 Neon Nee0.3, . 3 Krypton Kr 82-92 Bxom IL Berynium Be 9 1 Magnesium Mg 24 52 Calcium a 40-07 ZIno Zn 65.37 Strontium Sr 81-63 Cadmium Cd 112.40 3aom L Lithium Li. 694 SodWn Na 2890 Potassium P m. 10 copper Cu 63.07 Rubidium1 Rb58.45 Silver Ag 107.88 Xenon Barium OBODPIIL Boron B 119 Aluminium AI 27 1 Scandium 44.1 Qallium 1.098 Yttrium Yt 899 Indium In 114.8 Caesium Lantbauum Cerium La e 130.2 159-0 140 QBOm IT. Carbon C 12-00 Silicon Si 28 3 Titanium m 48.1 Germanium 00 120 Zirconium Zr 90.6 Tln 80 119.0 a ism I B. ia-n GBO V . Nitrogen N 14a1 Phosphorus P 319.1 Vanadium v 51.0 Atsenic A. 5 4 Nioblum Nb 93.6 Antimony Sb 120.2 Europium aadoIinium Terbium Eu 1629 Gd 1619 Tb 169.2 I Thulium Ytterbium Tantalum Tm 1685 Yb 172 0 Ta 181 6 Bismuth Bi 208.0 W n m Emanation 222 L Mercury Hg 2W. B Radium Rs E 8 4 Gold AU 197.2 - ThalHum Tl204. O Lead Pb 207.10 ThorIum Th 232 4 OF THE ELEMENTS Q B VlI L Iron Cobalt Xickel Fe 55 84 Cob897 Ni 68-63 Ruthenium Rhodinm Palladlam U 101.7 Rh 1029 W 108 7 Qiloo V L Sulphur S 3297 Obromium Cr 529 Belepium - h 1 9 4 Molybdenum MO 969 Tellurium Te 127.6 QEOVP VII. fiorine F 19.0 Chlorine C1 35 46 Manganese bln 54 93 - Bromine Br 7992 - Iodine 1126 92 Praebodymfum Neodymiuaa 8arnarium h 140-6 Nd 1443 68 150 4 D raslum g 1 6 2 5 Erbium Er 167 7 ,. Osrn um Iridfutn Platinum Oe l909 Ir 183 1 Pt 1954 b Tungsten W 1849 Polonium Uranium U 238-5 C - MATTER AND ENERGY PHYSICAL HISTORY THE behaviour of matter and energy represents one aspect only of human knowledge, which is generally known by the name of physical science. It seems well to state at the outset that, throughout these pages, when the term science is employed it refers solely to this one branch. Physical science enjoys the distinction of being the most fundamental of the experimental sciences, and its laws are obeyed universally, so far as is known, not merely by inanimate things, but also by living organisms, in their minutest parts, as single individuals, and also as whole communities. It results from this that, however complicated a series of phenomena may be and however many other sciences may enter into its complete presentation, the purely physical aspect, or the application of the known laws of matter and energy, can always be legitimately separated from the other aspects. This aspect comes first, not necessarily in relative importance, but in the order of the scientific definition of the phenomena and of the problems it presents for a solution. A great simplifkation thereby results, which is too often neglected. Complete ignorance of these laws is, nowadays, rare, for they enter into the general common sense of the age, and any flagrant violation of them is quickly exposed. But the neglect to give precedence to the purely physical aspect of the complicated occurrences and events of human experience in their orderly presentation, has led to much confused history and a general lack of clearness as to the precise terms with Nature on which the race exists on this planet...