Читать книгу Pyrotechnics. The History and Art of Firework Making онлайн

16 страница из 52

Another use of the earth pot is the “burusu,” a kind of red flare; the composition used being sulphur, saltpetre, and nitrate of strontia. Flare compositions are also used loose as in England, and are known as “chandrajota” or “mahteb.”

Abusavanani or Hawai, that is to say, rockets, are now made similarly to those manufactured in Europe except a bamboo case is most generally used, but formerly chlorate of potash and orpiment seem to have been employed for this purpose.

The firework shell under the name “out” is also manufactured very much as in this country, except that the range of effects is very limited, simple coloured stars being almost the only “garniture” used.

In Siam it is a custom, and one apparently of considerable antiquity, to celebrate certain religious festivals with firework displays. These displays take place in the day-time, and take the form of discharges of rockets, some of which are of very large size; a writer giving their length, exclusive of the stick, as from 8 ft. to 10 ft. The case is composed of a section of bamboo bound with string. The composition consists of coarse native powder, of which from 20 lbs. to 30 lbs. is often used in one case. The rocket stick, which is of bamboo, varying from 20 ft. to 40 ft. in length, is gaily decorated with coloured paper and tinsel and fitted with bamboo whistles. A rough scaffold is erected from which to fire the rockets, and according to those who have witnessed such exhibitions, considerable altitudes are reached by the rockets in flight. As may be expected with such crude methods, mishaps are of frequent occurrence.