How many world-wide postage stamps can you identify that have a direct relationship to rare earth? RIC News, published by the Rare-earth Information Center (RIC) is holding this contest to celebrate its 25th anniversary. The person who identifies the most stamps will be offered the choice of receiving a book or a free year's subscription to the RIC Insight.
Iowa Science Teachers Journal
© Copyright 1990 by the Iowa Academy of Science
"Science Notes - Rare-earth Stamp Contest,"
Iowa Science Teachers Journal: Vol. 27
, Article 14.
Available at: https://scholarworks.uni.edu/istj/vol27/iss1/14