Staying on topic !
Mick Benton said:
Mik,
Try to stay on topic as suggested by the experts?
Mick Benton said:
THAT and Rooster’s video with stone aqueduct bring to mind a long-ago story in some model railroad magazine where the modeler had the Einsteinian Inspiration to make their stone viaduct out of poured concrete or plaster, I forget which, and it turned out that drink cans were just about perfectly sized for the arches.
So …
a form was made …
with stacked drink cans under something thin and flexible …
it worked like a charm.
Until …
until the setting poured material did something exothermic …
and that interacted with the drink cans …
which no one had thought to empty beforehand …
(https://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-surprised.gif)
