h-hydrogen

There is more to the snowflake than its skills to delectation schoolchildren and snarl freight. The organization of the frosty flakes also enchant ice chemists like Purdue University's Travis Knepp, a doctoral seeker in analytical chemistry who studies the basics of snowflake construction to gain ground more judgement into the dynamics of ground-level, or "tropospheric," ozone depletion in the Arctic........ <<>>