It was so awesome and many people were distraught and very upset when such a beautiful and awesome factory was exploded. Nobody knows exactly how it exploded but there are many theories. It also has a cameo appearance in the background of "Godzilla."
The Rainbow Factory made educational videos and put them on Awesomespud.co.uk but they got removed shortly after the Rainbow Factory exploded. These are rainbow videos from regular educational sites. Mostly YouTube.