资讯

For all the things Romans got wrong (lead pipes anyone?) did you know we’re still using a less advanced concrete than they did? Consider some of the massive structures in Rome that have passed ...
The Jargon File describes a wizard as someone who groks something to a very high degree, or the kind of person that builds a polymer concrete CNC ... then goes on to make his own spindle, get ...
A concrete job that has not cured properly can have a dusting on the top of the surface, and paint has difficulty adhering to this dusty layer. This dust can foil your efforts to make paint adhere ...