Hydrogen As Seawater
a:  Hydrogen ~
b:  seawater
What:  "Hydrogen is like seawater to the thirsty Ancient Mariner - it's everywhere, but not in a usable form. It's the most abundant element in the universe, but separating it from oxygen in water takes large amounts of energy."
Useful?
Writer:  Timothy Gardner
LCC: 
Where:
Date:   Nov 12 2012  4:34 PM
# 2408 Critique Analogy
