Yes this is very nice simulator of scale differences for the computer. There are several astronomical comparisons of scale for the iPad available if you are interested. ---- Jennifer Weitz <Jennifer.Weitz@xxxxxxxxxxxxxxxxxxx> wrote: > Coincidentally after Leah pointed out that Slooh causes the viewer loose a > sense of scale last night, this landed in my inbox this morning. I haven't > seen a scale demo with quite so many astronomical objects before. I plan to > use this in class. (It does take a minute to load.) > > http://htwins.net/scale2/scale2.swf?bordercolor=white