I'm amazed by the fact that you've all bothered to learn the colours of the rainbow. Must be some angloamerican kindergarden tradition.

I once knew the periodic table by heart. I still remember the first eighteen elements. I learned the nonsense words that were created by stringing the symbols together:

H helibeb cnofne namgal sipsclar

You had to remember how to split it up again, all elements do not have the same number of letters as their symbols.