Telescopes outfitted with modern electronic cameras and spectrographs
are astronomers' primary tools for exploring the Universe. In this
lecture I review the primary types of telescopes and the best
observatory sites to locate them, with a brief mention of radio and
space telescopes. At the end, I give a brief review of the Ohio State's
observing faciliti ... Show More
Oct 2007
Lecture 23: Worlds Within - Atoms
What is ordinary matter made of? This lecture reviews the basic
properties of matter from subatomic to atomic scales, introducing atomic
structures, atomic number and chemical elements, isotopes,
radioactivity, and half-life, ending with a brief overview of the four
fundamental f ... Show More
41m 25s