tag:blogger.com,1999:blog-9094742788006644220.post1914985232678765620..comments2009-05-07T16:56:56.533-07:00Mike Brownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-9094742788006644220.post-18562452454922046502009-05-07T16:56:00.000-07:002009-05-07T16:56:00.000-07:00Hi, Mike :)<br /><br />Pretty good article. Yesterday there were no distinct shadows, but today just as I called up this screen, sunlight penetrated the blinds. So I decided to go out and see my shadow.<br /><br />But by the time I got out, the sun had moved behind a semitransparent cloud. All the shadows were indistinct; I looked around the sky and it was all hazy, the clouds did not have disticnt borders but kind of blended into what little clear blue sky there was. <br /><br />I stayed outside for a couple of hours anyway, there was a nice breeze blowing. A couple of times the clouds cleared giving direct sunshine and I could see my halo. It was about a centimeter or two wide at a distance of about two meters. I closed one eye, turned my head, and peered at the little yellow flower next to the shadow of my glasses. This was the maximum effect I could get. It looked like a nice, friendly little flower, brighter than the others. When I moved my head, it became an ordinary flower again.<br /><br />It seems the angle at which the effect takes place is about arctan 1/100, about. Has anybody formally solved this? It seems that Kuiper belt objects would often be in that cone of observation.<br /><br />Well I hope I can observe my moon halo tonight but the prospects are pretty grim. I have, though, observed bright full moons in the past.<br /><br />How did you find that hot spring way out in the middle of nowhere? We have a hot spring in Austin called Stacy Pool, they built a swimming pool around it a long time ago. Homeless bums go there to shower. We haven't had an active volcano in this area for 65 million years so I've always wondered about that. Could radium be transported by groundwater to some rock layer that precipitates it? I don't know. I didn't have a radon detector, those are for people with houses :0<br /><br />:D<br /><br />-Mike Emmertmikeemmerthttp://www.blogger.com/profile/06086633057200198850noreply@blogger.comtag:blogger.com,1999:blog-9094742788006644220.post-75777277418670451312009-05-05T20:06:00.000-07:002009-05-05T20:06:00.000-07:00I always look up...now I'll have to make sure I'm looking down, too. Mike, I love this post.<br /><br />Scientifically, what's the effect between the alignment of the Sun, Earth, and Moon? I know there are supposed to be more positive ions streaming at the Earth on the lit side...negative ions on the dark side...mixed where dusk and dawn fall. But is there a web site somewhere that explains it better than Wiki...especially, the halo effect?<br /><br />My only astronomy background is trying to teach it to my kids : )<br /><br />KarenAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-9094742788006644220.post-15929838338784341932009-05-05T15:43:00.001-07:002009-05-05T15:43:00.001-07:00Beautiful post. I had always wondered about those halos, and your explanation makes perfect sense. Thank you!Dr. Vectorhttp://www.blogger.com/profile/01257878915555113427noreply@blogger.comtag:blogger.com,1999:blog-9094742788006644220.post-91783061910970549792009-05-05T15:43:00.000-07:002009-05-05T15:43:00.000-07:00<I>I</I> read it.alcehttp://www.blogger.com/profile/12255425000350880428noreply@blogger.com