Recent content by Rohan

Here is another approach to the problem of the relation of the "observable size of the universe" to it's 'possible actual size' I think it worth while to go back to the beginning because we will uncover; - certain limitations of the human mind and resulting incorrect assumptions - a really...

As an addendum to my query above; I wonder whether the peculiar mathematical properties of 4 dimensional manifolds; (apparently they unlike higher dimensional manifolds " don't have a unique differentiation structure"..Simon Donaldson 1982 Oxford Uni.); places any constraints on these theories...

1/ Amongst what seems like the plethora of classical Unified Field Theories; that seemed to exist in the first half of the 20th century; see for example https://link.springer.com/article/10.12942/lrr-2014-5 [caution 50MB download] were they all abandoned just because of failure to account for...

Quite likely: "A proof that algebraic topology can never have a non self-contradictory set of Abelian groups". is rubbish; but shouldn't we start from the term , " set of Abelian groups". ? (I have recently got up to here in my attempt to understand modern mathematics so as a beginner please...

Another electro-static machine, which is just a fluid version of the Van der Graff generator; is obtained by replacing the rubber belt and brushes with a pump circulating a non conducting liquid; in non conducting tube ( eg polyethylene) but with metal sections replacing the brushes. This also...

Whilst I realize it is not popular ; I consider it is useful to distinguish between science and philosophy. Where philosophy is itself divisible as - values and ideology -epistemology: what we know and how we know it -ontology:essential nature of things and definition of the meaning of words...

Thanks for the great diagrams, working back through the traditional astronomical jargon was going to be tedious! Perhaps the diagram could be made less'busy' using an "exploded view" where the plane of the Earth-Moon system , is shown as a smaller part of the plane of the Solar System , it self...