Streetlamp halos with their spatial form can be memorable experiences for the viewer. Yet, we know rather little of them. But now this is changing as Walt Tape has taken a look at several spatial halos in four articles ( 1 ). There are numerous revolutionary insights and a whole new nomenclature is created. And best of all, articles can be read also by mathematically less gifted as there are hardly no equations.
Wow, nice stuff. Thanks for pointing these out.
Yes very nice indeed because these give one more insight on how divergent light sources affect halos.
I liked especially this one in Walt’s texts: “The classical halos are a special instance of the spatial halos”. So, spatial halos are the true halos. Classical halos that we see around sun are only reduced versions of them.
With these texts Walt has come up with a contribution to halo science that I’m sure will have wide reaching consequences. I believe it is not an exaggeration to say that these insights mark a new era in our understanding of halos.