tag:blogger.com,1999:blog-3904461976821332291.post854414087749663732..comments2007-12-30T22:30:35.200-05:00Comments on Paleo-Future: Moving Sidewalk Mechanics (1900)Matt Novakhttp://www.blogger.com/profile/09360406896692501416matt@paleofuture.comBlogger1125tag:blogger.com,1999:blog-3904461976821332291.post-90442023279572427252007-12-30T22:30:00.000-05:002007-12-30T22:30:00.000-05:002007-12-30T22:30:00.000-05:00I assume the images here are out of US Copyright, ...I assume the images here are out of US Copyright, being a century old. However, without any attribution or source information it's difficult to use them. The linked websites have mostly been taken down, making it difficult to track down the sources.Anonymousnoreply@blogger.com