Around the world, fireworks are a traditional part of certain celebrations: Here in Switzerland, the two national nights would be the 1st of August (1291, Independence Day), and New Year’s Eve. In America, the 4th of July is probably the most widespread fireworks night. In Japan, fireworks competitions are enjoyed by spectators during the Sumidagawa Firework Festival, and in India, it’s Diwali, the Festival of Lights. In many countries in South America, Christmas is the big night; in Britain, Guy Fawkes Night is celebrated with both fireworks and bonfires (in Scotland); he was most associated with a failed gunpowder plot intended to blow up parliament and assassinate King James I of Scotland / James IV of England and Ireland.
Most people have, at some time in their lives, seen fireworks go off; but most people have no idea how they produce varying shapes and colours. Derek Muller, aka Youtuber of the Veritasium channel, goes into the details of what makes fireworks take shape, have varying colours and enable them to have precision timing in displays. To watch the video, called “The Hidden Science of Fireworks”, which includes footage of a drone’s perspective amid a fireworks display, just click on the image below! Enjoy!
Stephanie Huesler 