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"A quantum odyssey from the tip of a pen to the dark side of human knowledge:" [^]
Machado’s film draws on 40 years of quantum research – not to mention significant advances in 3D rendering technology – to drill down to the unfathomably small scale of 10-33 metres, brushing up against the limits of human knowledge and imagination. The mindbending animation uses a framework of quantum gravity in which a gravitational field exists at these smallest conceivable scales.
I feel even more insignificant.
«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali
Stars are (to a first approximation) Black Bodies in the thermodynamics sense. This means that their peak radiation output depends on their surface temperature, which in turn depends on their mass. Small stars (less than 0.1 Solar masses) are red dwarfs, up to massive (10 or more Solar masses) blue-white stars.
The dark lines in the spectrum do indicate atomic composition, and these can be used to classify stars as "population I", "population II", etc., with older stars containing fewer complex elements.
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.