> Did they have a word for clay, as there are some clays that are
> more waterproof than others.
Blue clay is impervious to water, whereas the yellow will allow some through.
A couple of messages earlier yo explained how the funiculars worked. Thanks fo clearing that up for me. Now it all makes sense. It would be great if you could convince NOVA to revisit their "This Old Pyramid" show and test this theory out to see just how much weight they could pull.
It took me a while to reply because I forgot the title of this thread. Sorry. Also, I mostly use my tablet to reply and the quote function is very quirkyon my Android system. Sometimes it lets me scroll to the end so I can add my reply, and most times it doesn't. Very annoying. That's why I ended up just answering your earlier message here.