REFERENCES AND DATA SHEETS:

The links below provide a series of helpful technical information useful for design and engineering.

Head losses in closed pipe--Graphical (1/2"-->8" Diameter)

Head losses in closed pipe--tables (3/8"-->6" Diameter)

Hazen-Williams head loss calculator

Water velocity in closed pipe

Periodic Table of the Elements:  Standard

Periodic Table of the Elements:  Dynamic

Conversion Calculator

Conversion Tables

THE GREENING OF COSTA RICA:

A series of essays that focus on sustainable development, renewable resource, green engineering, and helpful tips for off-the-grid living and eco-friendly development in Costa Rica.

Costa Rica's call to lead sustainability in the Carbon Age

Clearing the air of the bio-fuel boondoggle

The Winds of change start at around nine miles per hour

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