The inquisition about science, the curiosity about natural phenomenon, it's gone. No longer wondering...
Does the refractive index of diamond have any link to its macromolecular structure? Do all transparent macromolecules have high refractive indexes?
What is colour? A reflection from a surface? What caused the absorption of certain rays and reflection of yet others? Bubbles are beautifully coloured but how?
Can heat substitute light in a photosynthesis reaction?
Realised that I've stopped asking questions once I entered junior college.
Curiosity. It is one quality that one don't realise when losing. And would already be lost when one realised.