F
- Fahrenheit, [142]
- Faraday, [138], [199], [214], [247]
- Farmer, [246]
- Faure storage battery, [294]
- Feudal system, [145], [146]
- Field, Cyrus, [266]
- Finlay, [327]
- Finsen, [313]
- Fire alarm telegraph, [247]
- Fire, [5]
- First American locomotive, [217]
- First electric telegraph, [232]
- First successful aeroplane flight, [326]
- Fiske, [312], [326], [328]
- Fitch, [180]
- Flexner, [328], [329]
- Flute, [49]
- Flying boat, [327]
- Foucault, [235]
- Fox, Talbot, [247]
- Foy, [294]
- Franklin, [168], [169], [170], [256]
- Frederick the Great, [166] et seq
- Frederick William, [165], [166], [279]
- French Revolution, [260]
- Friction matches, [213]
- Fulton, [180]
G
- Galileo, [135], [136]
- Galvani, [138], [200]
- Galvanization, [220]
- Galvanometer, [200]
- Gardner, [265]
- Gas engine, [291]
- Gas mantle, [302]
- Gatling gun, [273]
- Gaul, [86] to [95]
- Gaza, [73]
- Ged, [164]
- Geometry, [37]
- German Confederation, [261]
- Giffard, [265]
- Gilbert, [137], [138]
- Gimlet, [57]
- Goldschmidt, [327]
- Goodyear, [220], [284]
- Gorham, [286]
- Gorrie, [245]
- Gramme, [283]
- Graphophone, [302]
- Gravitation, Law of, [144]
- Great Eastern, [266]
- Greece, [45]
- Greek fire, [96], [97]
- Green, [269]
- Greener's hammerless gun, [294]
- Groves gas battery, [267]
- Guericke, [142], [143], [148], [149], [216]
- Gun carriage, [108]
- Gun-cotton, [240]
- Gun director system, [312]
- Gun, [101] to [110]
- Gunpowder, [39]
- Guthrie, [215]
- Guttenberg, [7], [111]
- Gyroscopic compass, [326]
- Gyroscopic stabilizer, [327]
H
- Hadley, [145]
- Hales, [184]
- Hall, [308]
- Hammurabi, [38]
- Hanaman, [327]
- Hand photographic camera, [298]
- Hannibal, [84], [85]
- Hargreaves, [172]
- Harvey, [140], [141]
- Harveyized armor, [304]
- Heat, a measure of work, [212]
- Hebrews, [45]
- Hellenistic civilization, [76], [77]
- Helmholtz, [246]
- Henry, [214], [216], [252]
- Herman, [247]
- Hero, [149], [150], [151]
- Hertz, [304], [305]
- Hewitt, [326]
- Hibbert, [244]
- High speed printing press, [327]
- Hoe, [235], [242]
- Holy Alliance, [260]
- Homer, [205]
- Hooke, [145], [162]
- Horseshoe machine, [218]
- Howe, [236]
- Huygens, [162]
- Hyatt, [284]
- Hydraulic dredge, [302]
- Hydraulic jack, [176]
I
- Ice machine, [245], [287]
- Illuminating water-gas, [286]
- Image making, [117], [118]
- Incandescent lamp, [292]
- Induced currents, [214]
- Induction transmitter, [293]
- Ingersoll, [284]
- Internal combustion engine, [291]
- Interrupted thread screw, [242]
- Invasion of England, [193], [194]
- Ironclads, [248]
J