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Oct 2007
39m 46s

Lecture 26: Telescopes

Richard Pogge
About this episode
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
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Oct 2007
Lecture 25: Measuring Light - Spectroscopy
Why does each element have its own unique spectral signature? how doe emission lines and absorption lines arise? This lecture is the second part of a two-part exploration of matter and light, looking at how the unique spectral-line signatures of atoms are a reflection of their in ... Show More
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Oct 2007
Lecture 24: Matter and Light
How do matter and light interact? This lecture is the first of two that will explore the interaction between light and ordinary matter, and how we measure that with spectroscopy. This lecture introduces the idea of internal energy as quantified by the temperature on the Absolute ... Show More
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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
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