Combustibles - WowShow - cda.pl

LOGOWANIE
- lub
  zaloguj przez facebook zaloguj przez gmail
  Zapomniałeś hasła? Kliknij tutaj, aby odzyskać hasło!
REJESTRACJA

CDA Premium (18597)
Dla dzieci
Strona główna
Wideo użytkowników

WowShow

+ Napisz wiadomość

117684 odsłon wideo

Dołączył(a): 2016-09-23

Foldery

Folder główny

Folder główny / Combustibles

[..] (Przejdź wyżej)

Nazwa:
od Z do A
od A do Z
Data dodania:
najnowsze
najstarsze

lista
duże ikony

Filmy Gry Obrazki

Senko Hanabi sparklers are a type of firework I have put significant effort into perfecting since 2007. I used to build large and complex fireworks regularly, but these little sparklers proved more challenging than even large multibreak shells. The effect produced by a tiny drop of dross that forms on the end of the sparkler is very delicate and even a tiny change in the composition or method of construction causes the result to fail. Finally I have found a method that creates consistent results which I demonstrate in this video. Still, there is room for improvement.

Possible changes to the composition include replacing or supplementing the charcoal with soot (commonly called lampblack) or even graphite. My composition shown in this video contains a higher percentage of oxidizer than most documented Senko Hanabi compositions as I rely on the paper wrapping itself to contribute to the fuel mixture in consuming the potassium nitrate. I have tried a wide spread of compositions including more traditional ratios and found this to work best.

It is not well documented what reaction is the cause of the sparks forming and being ejected from the ball of dross on a Senko Hanabi. I suspect it is a reaction between sulfur dioxide produced by the burning sulfur reacting with carbon in the charcoal to form a variety of byproducts that eject yet unreacted carbon out of the drop where it further reacts in the air. Perhaps catalyzed by remaining potassium salts left over by the potassium nitrate. Here is a paper I uncovered about similar reactions (PDF download link): http://bit.ly/2wSId2P

Here is another written tutorial for Senko Hanabi that you may find useful: http://bit.ly/2vPQ5VP

This is my old video from 2008: https://youtu.be/Ltlbs6K7-gk

I want to thank my Patreon supporters for helping to keep my channel alive! Making videos has been tough these last few years and your contributions have helped greatly. A special thanks to my top patrons: Syniurge, Matthew Leitzke, & TheBackyardScientist

You can check out my Patreon page and contribute here: https://www.patreon.com/NightHawkProjects

Thanks for watching!

09:01 45 09:01How To Make Senko Hanabi Sparklers (very rare Japanese fireworks) 1080p

Dodał: WowShow

Oglądaj gdzie chcesz

CDA

Relacje Inwestorskie
Dla mediów
Logotyp CDA
Dostawcy treści
CDA na Smart TV
Reklama

Ulepsz konto

Aktywuj konto CDA Premium
CDA Premium - korzyści
Karta podarunkowa CDA
Dla firm

Przydatne linki

Kontakt
Regulamin
FAQ
Polityka prywatności
RODO - informacje
Zgłoś naruszenie

Kup w

Nasz serwis wykorzystuje pliki cookie. Warunki przechowywania lub dostępu do plików cookies możesz zmienić w ustawieniach Twojej przeglądarki.

Zobacz naszą Politykę Prywatności. RODO - Informacje