Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor by Galileo and the reflector by Newton.
This 15-inch telescope known as "The Great Refractor" was installed at Cambridge in 1847. For 20 years it was the largest telescope in the United States, the most significant American astronomical ...
This 9" refracting telescope was manufactured by Alvan Clark and Sons, Inc., of Cambridge, Mass. The objective is an air spaced doublet. The approximate weight is 1100 pounds. The original owner was ...