I've always thought we stand on the top of a pyramid of knowledge built by our predecessors, who had a smaller base of knowledge to use.
That may be true, but remember the lesson of the Bent Pyramid in Egypt.They started to build it following the Pharaoh's orders, but they soon found that the rock at the base could not take the load. It was crumbling. So they had to change the slope of the sides and truncate the height.
In the same way, what might have 'seemed like a good idea at the time' can now be seen as a bad idea. We don't use iron pipes any more: we use copper, PEX and nylon. The old idea should not be perpetuated.
To make things worse, the use of BSP has spread from the old iron pipes into many other areas where it now makes zero sense. It is even used in pneumatics, where I have to deal with 1/2" BSP, 3/8" BSP. 1/4" BSP and 5 millimetre fittings. Yeah, mixed units! I understand the 5 mm: it is standard metric.
Cheers
Roger
That may be true, but remember the lesson of the Bent Pyramid in Egypt.They started to build it following the Pharaoh's orders, but they soon found that the rock at the base could not take the load. It was crumbling. So they had to change the slope of the sides and truncate the height.
In the same way, what might have 'seemed like a good idea at the time' can now be seen as a bad idea. We don't use iron pipes any more: we use copper, PEX and nylon. The old idea should not be perpetuated.
To make things worse, the use of BSP has spread from the old iron pipes into many other areas where it now makes zero sense. It is even used in pneumatics, where I have to deal with 1/2" BSP, 3/8" BSP. 1/4" BSP and 5 millimetre fittings. Yeah, mixed units! I understand the 5 mm: it is standard metric.
Cheers
Roger
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