Re: Powers of Ten online
www.eamesoffice.com is run by the family of Ray & Charles Eames; & has the work available on DVD (volume 1 of the complete works). The Eames family also manage www.powersoften.com (powersof10 will also work); which sells an interactive CDROM version of the film.
Apart from being a great admirer of the Eames' work, i have no connection with either of these sites.