Reber and Jeffrey Lichtman
Reber scanning the skies with his telescope
graph shows that in the process that produces the
that can be deduced from the spectrum, the
changes with the frequency.
a Chart Recording
of Reber's telescope
which was made in 1943
telescope, found in Green Bank,
after being donated to the NRAO
Radio Astronomy Observatory)
used by permission of the National Radio Astronomy Observatory"