The Search for Cross-Hairs for Scientific Instrumentation, Part II A 426Kb PDF of this article as it appeared in the magazine—complete with images—is…
Tag: telescope cross-hairs
02.28.2005
Along Came a Spider–Spinning Silk For Cross-Hairs
The Search for Cross-Hairs for Scientific Instrumentation, Part 1 A 1.068Mb PDF of this article as it appeared in the magazine—complete with images—is…
