Belated Happy Pi Day!!!
For those who prefer, there is an obscure person that is celebrated this coming Sunday. Wear green if necessary. Just enjoy time together over the weekend!
Pipe Specifications
(The series continues…)
- All pipes shorter than 1/8in (3mm) are very uneconomical in use, requiring many joints. They are generally known as washers.
- Joints in pipes for piping water must be water-tight. Those in pipes for compressed air, however, need only be air-tight.
- Lengths of pipes may be welded or soldered together. This method is not recommended for concrete or earthenware pipes.
