Padmanabhan, T.2012-03-032012-03-032009-03-12http://hdl.handle.net/11007/235Many features of the expanding universe, which should be legitimately discussed using general relativity, can be sneaked in by using Newtonian physics in an expanding coordinate system. In this special issue on Hubble, I describe several of these features along with some cautionary comments.enCosmologyExpansion of the universeStructure formationArticle