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[EnigmaticBiker]

Each week in NS they publish questions from readers, good answers win a £25 prize.

I found this question and thought it worth posting:

Kaboom squared
I've just got back from a fireworks display where some of the fireworks exploded into a square shape.
How do they do that?

Justin Muller
Tokyo Japan

Post answers to: lastword@newscientist.com

(Include your postal address to receive payment for answers)

This was from the 20 Jan issue but the questions run until answered.

Edited by EnigmaticBiker, 07 February 2007 - 12:56 PM.

[Asteroid]

I saw this too, but forgot to post it. Might be worth mentioning that published questions win a 512mb memory stick