For those of you who are either facinated or interested in "Orbs", below is an excellent source site to check out. They have actually done studies in this regard, so their findings are worth taking a look at. I would have added much of the information here for your convenience, but it appears as though their copyrights are a bit stringent.

http://orbstudy.com/BIZyCart.ASP?STYLE=BASE&GROUP=Research&NEXTPAGE=Research-G.htm&THISPAGE=Art-Einstein.htm&CLIENT=OrbStudy&ACCOUNT=990