The Planetariums Unlimited Division of Viewlex, Inc., has just introduced the new Mark IIA Planetarium. Offering the features of accuracy and flexibility of "major" capability planetariums at a fraction of the cost, the Mark IIA makes it possible for schools, colleges and museums to afford a sophisticated planetarium, which up to now they could not consider for economic reasons.
Iowa Science Teachers' Journal
© Copyright 1972 by the Iowa Academy of Science
"Viewlex Introduces Mark IIA: A "Major" Planetarium at Low Cost,"
Iowa Science Teachers Journal: Vol. 9
, Article 25.
Available at: https://scholarworks.uni.edu/istj/vol9/iss3/25