PPR (Polypropylene Random Copolymer) pipe is a type of thermoplastic pipe made from a specific type of polypropylene resin. PPR pipe is a modern plumbing solution that has gained popularity worldwide due to its exceptional properties and versatility. The molecular structure of PPR includes randomly arranged propylene monomers and ethylene, creating a material that offers excellent resistance to high temperatures, chemicals, and pressure. This random arrangement is what gives PPR its name and its unique characteristics compared to other plastic pipes. Unlike traditional materials like copper or galvanized steel, PPR pipes don’t corrode or scale over time. They’re also significantly lighter, making them easier to transport and install. The smooth inner surface reduces friction, allowing for better water flow and less noise during operation.

Old graybeards like me still cling to the web, idolizing Yahoo Pipes and posting faux thinkpieces to our tiny blogs.

Pipes turn out to be documents.

"We should have some ways of connecting programs like garden hose--screw in another segment when it becomes necessary to massage data in another way. This is the way of IO also."

1. We should have some ways of connecting programs like garden hose--screw in another segment when it becomes when it becomes necessary to massage data in another way. This is the way of IO also.

Point 1 is the interesting one. It provides the historical background for Doug's encouragement of the Unix pipe notation. The linked paper gives appropriate credit; in interviews, Doug has been explicit in saying that he very nearly exercised managerial control to get pipes installed.