| Granite flats can be used as mounting surfaces for machines that need to stay very accurately aligned. Dozens of these huge precision granite blocks were sold as scrap to a local stone dealer, and I happened to pull up in their lot just after they had unloaded them. Blocks were piled up everywhere, blocking the driveway and generally making a nuisance of themselves, so the owner offered to sell me a bunch cheap just to get them out of his hair. I was told that the two mounting surfaces on each block are flat and parallel within millionths of an inch. This could be true, and if it is you’re looking at some of the most expensive lawn furniture in the world. I rented a rough-terrain forklift to arranged them in my front yard. There they remain to this day, 25 years later. 25 million years from now they will probably still be there, buried under the debris of a thousand civilizations come and gone. |
