fireworks – the Japanese “Susuki” sparkler, Sparkler Fire-works, and “Senko” sparkler (containing eight of each), as well as hand-held fireworks set containing 10 “Susuki” sparklers and 10 sparkler fireworks. These fireworks were carefully selected by the company’s pyrotechnicians from many fireworks with low smoke, light, and sound. They are all manufactured by a partner company overseas.Firstly, the standard hand-held firework, the Japanese “Susuki” sparkler, has gunpowder wrapped in paper. As the name “Susuki” (Japanese silver grass) suggests, sparks that look like ears of silver grass come out energetically with a ‘sizzling’ sound when it is lit.According to Iwamoto, usually, they produce much smoke, but these products make less. The detail is a trade secret, but the shape differs from that of most products.Next, Sparkler fireworks - sometimes called ‘sparks’ or ‘sparkles’ - are made of kneaded gunpowder wrapped around a rod. When ignited, it burns on its axis around the rod, sending sparks shaped like snowflakes bouncing around and flying in all directions. This type, which produc-es relatively little smoke, was carefully selected for its light-ing. The color of the light is gold.And the Japanese “Senko” sparkler, which has low gun-powder content and very little smoke and sound, is carefully selected with a particular focus on paper. That’s because the way the paper is twisted determines how well the “Sen-ko” sparkler keeps its fire.schools and libraries in Cambodia, was planning fireworks display and was looking for a fireworks manufacturer. Japan is also a country that has experienced war. There are vari-ous theories, but it is said that fireworks were developed as a peaceful use of gunpowder. With the aim of communicating this, when we held the first event in 2018, we taught chemistry to children to learn how fireworks work before we set them off.”In the future, they are thinking of contributing with fireworks in South-East Asia, countries in Africa, and Ukraine.”When the pandemic is over, we wish to tour to various countries,” Iwamoto said.Japanese “Susuki” sparklerA sparkler firework’s golden sparks shine brightly in the dark.Cambodia’s civil war lasted for more than 20 years from 1970 to 1998, and millions of mines are still laid. Iwamoto said that due to landmines and unexploded ordnance accidents in vari-ous parts of Cambodia, Cambodian children have the memory that “landmines and gunpowder are scary.”Fire Brand Inc. held fireworks classes and fireworks dis-plays in Cambodia in 2018. A total of six events have been held so far, with a seventh planned for March 2023. We asked Iwamoto about how he came to hold these fireworks events in Cambodia.He told us, “HERO, a non-profit organization that builds Japanese “Senko” sparkler46Making the world full of smiles and impression with fireworks
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