RE: A true Stairway to Heaven./ Настоящая Лестница на Небеса. ENG/RU (thanks @ap2002 for the material)
I have always loved fireworks because it's applied chemistry. I purchased a book years back called Advanced Home Made Fireworks, which went into great detail about how fireworks are made and even worked in the fireworks department at Walt Disney World for a period of my life. This has to be one of the most incredible fireworks I have seen.
I have upvoted this post and will feature it in my daily hidden gems blog. Excellent piece.