▽The Presurfer ●04/25 22:07 Geplaatst door Gerard on 2/17/2017 580Geplaatst door Gerard on 2/13/2017 459Geplaatst door Gerard on 2/07/2017 142Geplaatst door Gerard on 2/05/2017 63
▽TYWKIWDBI ●04/24 09:20 22 April 2025"All dams are temporary"Interesting engineering video - especially the demonstration of sediment deposition using colored sand. Not really new info, but worth a browse because it's well illustrated and concisely narrated (14 minutes, plus a relevant advertisement at the end).Email ThisBlogThis!Share to XShare to FacebookShare to PinterestLabels: Video - science and naturePowassa