Effective Engineering
I worked in a materials testing lab for a time after graduating from college. One of the items we regularly tested were hydrants. If I remember correctly they had to hold 250 pounds per square inch for a specified period of time and not leak or lose pressure. Normal house water pressure is 40 to 60 psi. Pretty amazing piece of work considering the design and how many lives this has saved. Shot with a Fujica ST801 and Takumar Super Multi Coated 55mm f2 lens. Film is Fomopan 100 developed in Rodinal at 1:25
Effective Engineering
I worked in a materials testing lab for a time after graduating from college. One of the items we regularly tested were hydrants. If I remember correctly they had to hold 250 pounds per square inch for a specified period of time and not leak or lose pressure. Normal house water pressure is 40 to 60 psi. Pretty amazing piece of work considering the design and how many lives this has saved. Shot with a Fujica ST801 and Takumar Super Multi Coated 55mm f2 lens. Film is Fomopan 100 developed in Rodinal at 1:25