Man's physical universe

xanabras

822 INDEX

Faraday's laws, 569, 587

Far-sightedness, 439

Fats, 616, 722-723

Fault, 157

Feldspars, 633

Fertilizers, 731

Field

electrostatic, 486

magnetic, 503

Filtration, 759

Fire extinguishers, 608, 649-650

Fireflies, 398

Fire-retarding, 671

Fireworks, 648

Flames, 646

Flexible elastic plastics, 675

Fluidity, 213

Fluorescence, 395, 401, 404-409

Fluorescent lamps, 404-406

Fluorine, 765

Fluoroscope, 551

Flux, 635

Foamite, 688

Food, 735

Foot -candle, 442

Forced vibrations, 461, 469

Formaldehyde, 675-676, 683

Formula

chemical, 560

empirical, 612

structural, 612

Fossils, 169-171

Foucault's pendulum, 118

Four-stroke cycle, 332

Fractional distillation, 689

Franklin, Benjamin, 491-492

Frasch process, 625

Fraunhofer, Joseph, 70

Fraunhofer lines, 70, 71, 84

Freezing point, 205, 227

lowering, 245-246

Frequency, 453-455

modulation, 535

Friction, 292

and static electricity, 484-485

Fumigants, 754

Furfural, 676-677

Fuse, electrical, 522

Galaxy

exterior, 81-84

our, 51, 72, 74, 78, 79, 81

Galileo, 58-59

Galvani, Luigi, 494

Galvanometer, 72, 494, 507

Gamma rays, 391

Gangue, 635

Gas, 206-211

Gasoline mileage, 214

Gastroscope, 439

Geissler tubes, 545

General anaesthetics, 777-778

Generalizations

qualitative, 23

quantitative, 23

scientific, 22, 35

Generators, electric, 515-517

electrostatic, 488, 490-491

windmill, 303

Generators, of musical instruments, 469

Genes, 793

Genetics, 793

Geography, defined, 40

Geology

defined, 40

survey of, 127-177

Germicides, 770

Germ-killing lamps, 403

Germs, 187

Geysers, 143-144

Glaciers, 144-145, 154, 176

Glass, 224, 652-653

invisible, 434-435

organic, 682-683

Glass wool, 653

Glvptal resins, 687

God, 24

Gold, 186

Gradation, 125, 138-146, 148, 155

Granite, 179-180

Graphite, 189, 628

Graupel, 262

Gravitation

and gradation, 141

and tides, 93-94

and weight, 94

law of, 91, 237

moon's, 93, 94

Gravity and design of airplanes, 366-367

Greases, 758

Ground moraines, 154

Ground water, 142-143

Guncotton, 669

Gyrocompass, 98

Gyroscope, 97-98, 380

Haber process, 763

Hail, 258-259

Hale, George Ellery, 66, 87

Halogens, 765, 770

Halowax, 687

Hammond electric organ, 472

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