 | 1866 - 924 pages
...is exploded in the dark locus, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is -pierced and inflamed by the...action. The substances placed at the dark focus are oxidizable ones, which, when heated sufficiently, are attacked by the atmospheric oxygen, ordinary... | |
 | 1865 - 1144 pages
...is exploded in the dark focus, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...experiment is particularly beautiful. Magnesium wire, flattened out and blackened, burns with almost intolerable brilliancy. The effects thus far described... | |
 | 1867 - 844 pages
...is exploded in the dark toons, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...invisible rays. By gradually drawing the strip through the fccus, it may be kept blazing with its characteristic purple light for a considerable time. This experiment... | |
 | John Henry Pepper - 1869 - 722 pages
...exploded in the dark focus, through the ignition of its envelope. " A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...action. The substances placed at the dark focus are oxidizable ones, which, when heated sufficiently, are attacked by the atmospheric oxygen, ordinary... | |
 | John Henry Pepper - 1877 - 764 pages
...exploded in the dark focus, through the ignition of its envelope. " A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...experiment is particularly beautiful. " Magnesium \vire, presented suitably to the focus, bums with almost intolerable brilliancy. " The effects thus... | |
 | Royal Institution of Great Britain - 1866 - 742 pages
...is exploded in the dark focus, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...action. The substances placed at the dark focus are oxidizable ones, which, when lirnted sufficiently, are attacked by the atmospheric oxygen, ordinary... | |
 | 1866 - 774 pages
...is exploded in the dark focus, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the...beautiful. Magnesium wire, presented suitably to the focus, bums with almost intolerable brilliancy. The effects thus far described are, in part, due to chemical... | |
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A mixture of oxygen and hydrogen is exploded in the dark focus, through the ignition of its envelope. A strip of blackened zinc-foil placed at the focus is pierced and inflamed by the invisible rays. By gradually drawing the strip through the focus, it... 