Fireworks

Salam ramadan to all muslim brothers and sisters and hi to the others. n_n   It's been a long time since I updated this blog. What can I do. A normal person like me, always suffer from blogger's block. XD   Anyway, since I'll be going to university this September 1st, I'm thinking of writing some posts before the date arrives. Therefore, keep visiting my blog okay. n_n

In this month only, I've seen more than five pyrotechnics aka fireworks show. Festival apa yang disambutnya  pun tak tahulah. So, when I saw these fireworks, I wondered, "Apasal kaler dia warna warni? Apasal ada pecah jadi bulat,ada yang jadi bunga? Pastu camano pulok dia boleh set timing elok-elok tak ada satu pun yang lari? " Jadi, kalau nak tahu jawapannya, jom kita baca sikit mengenai bunga api.*yayyyy*

So, the first thing. Why are there different colours of fireworks? Yellow, blue, red*you know the colours*. Jadi rupa-rupanya, kabaid dia tu,*called pyrotechnic stars* yang kawal warna dan kecerahan bunga api tu. There are five things that made up the stars and they are the:
-fuel
-oxidizer *to oxidize the fuel(korang yang budak-budak SPM,kalau tak tahu apa oxidizer ni, haaa, balik study la bab redox reactions, kalau tak bermasalahlah korang nanti*,
-colour-producing chemicals,
-binder *mengikat sebatian kimia(chemical compound daa)* and lastly
-chlorine donor *chlorine mengawal kecerahan warna api*
For example, if they want a blue coloured fire, they have to mix some copper halides*colour-producing chemical*  when making the stars. When it's lighted, tadaa, blue coloured fire is produced. There are many more colours and if you want to know what chemicals are used for all sorts of different colours, google it. n_n

Next, about the effects or shapes of the fireworks. Selalu kalau korang beli mercun, korang perasan kan kepompong dia*betul ke kepompong? haha*. Cuba la beli mercun mancis satu kotak, ambik sebatang dan koyak kertas sekeliling dia, kabaid dia akan keluar. It's actually the same thing with fireworks. Yang korang koyak tu dipanggil aerial dan dalam aerial yang besar, ada banyak lagi tiub-tiub kecil.

 In those small tubes, they contain effect tubes.

 Haa, effect tube ni-lah yang control shape firework tu. The stars are arranged in the pattern wanted inside the aerial shell which is in the effect tube.

So, kalau korang perasan dalam gambar aerial*gambar 1st*, tiub-tiub tu disusun tak sekata. Ada tempat tak ada tiub, ada tempat rapat, ada tempat jarak. That is the reason behind the different effects of fireworks. n_n
Finally, about the timing, it actually depends on the main fuse. Cuba tengok gambar ketiga, nampak tak fius dia? Sumbu la kalau bahasa kampung. Sebenarnya, setiap aerial shells dalam tiub-tiub yang banyak tadi disambungkan dengan satu sumbu utama. Jadi, api yang menyala pada sumbu tu-lah yang membakar semua shell tu mengikut turutan. Pasal tulah timing dia tepat. n_n

That's all for tonight. I know this post is giving you headache, but I'm just sharing. Even if you don't understand a lot, at least you know something. Bolehlah buat berlagak dengan kawan-kawan. Wahaha. Don't do that please. Sekadar gurauan. XD   By the way, if you have anything to add or to correct any info in here, just leave a message. Till the next post. Chiao. n_n


~Lonymous~