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    ailable in large numbers, gases had been liquefied and solidified32, and the rang
    0:08

    ailable in large numbers, gases had been liquefied and solidified32, and the rang

    useful heat and cold indefinitely extended. The safety-lamp had been given to the min
    0:12

    useful heat and cold indefinitely extended. The safety-lamp had been given to the min

    aisson to the bridge-builder, the anti-friction33 metal to the
    0:10

    aisson to the bridge-builder, the anti-friction33 metal to the

    chanic for bearings. It was already known how to vulcanize rub
    0:06

    chanic for bearings. It was already known how to vulcanize rub

    nd how to galvanize iron. The application of machinery34 in the harvest-field had begun with th
    0:07

    nd how to galvanize iron. The application of machinery34 in the harvest-field had begun with th

    reaper36, while both the bicycle and the automo
    0:18

    reaper36, while both the bicycle and the automo

    ere heralded38 in primitive39 prototypes. The gigantic expan
    0:12

    ere heralded38 in primitive39 prototypes. The gigantic expan

    n of the iron and steel industry was foreshadowed in th
    0:13

    n of the iron and steel industry was foreshadowed in th

    ange from wood to coal in the smelting40 furnac
    0:07

    ange from wood to coal in the smelting40 furnac

    e sewing-machine had brought with it, like the friction matc
    0:14

    e sewing-machine had brought with it, like the friction matc