and colour blending ...
and spinning (pics to follow).
Here are the next few quotes from my thesis as promised.
This next one is one of my favourites.
"In these days of upheaval and violent change when the basic values of today are the vain and shattered dreams of tomorrow, there is much to be said for a philosophy which aims at living a full life while the opportunity offers" Eric Shipton
"Science is nothing but trained and organised common sense" Thomas Huxley
" ... "would you tell me, please which way I ought to go from here?" "That depends a good deal on where you want to get to" said the Cat. "I don't care much where-" said Alice. "Then it doesn't matter which way you go." said the Cat. "-so long as I get somewhere," Alice added as an explanation. "Oh you're sure to do that," said the Cat, "if only you walk long enough"." Lewis Carroll.