In this lecture (back from illness, reading week, and the midterm exam!) we talk about "seeing", different telescopes, why we go to high altitudes to build them, and why we build telescopes to operate at different wavelengths (i.e. what different physical phenomena in the Universe emit at different wavelengths). We also begin to talk about radio telescopes.

No podcasts of these lectures due to illness

In this lectrure we discuss the varous "type" of light across the Electromagnetic spectrum (radio, IR, visible, etc.) and then also how solid objects produce light i.e. Black Body radiation. We investigate how the color and intensity of light changes with temperature, and then how to actually calculate the temperature of a Black Body precisely (Wien's Law) and the total amount of energy produced (Stefan's Law).

In this lecture we explore the many uses of Newton's version of Kepler's law as a tool to determine the masses of objects in the Universe. We then move on to Part 2 of the class notes (the Electromagnetic spectrum) and talk about the particle and wave natures of light including concepts of diffraction, interference, wavelength, frequency and energy.

In this lecture we explore Newton's laws of motion and gravity and show how how he unifies terrestrial and celestial motion. We provide and use the equations for gravitational force, gravitational acceleration, and orbital velocity. We also discuss the difference between mass and weight.

In this lecture we finish our discussion of Galileo's contribution to the Heliocentric model and begin to discuss motion in the Universe via a focus on Newton's three laws.

In this lecture we begin to discuss the rise of the heliocentric model of the Universe/Solar System in the rennaissance. We describe the Copernican model, Tycho Brahe's observations, and Kepler's use of Brahe's data to create his 3 laws of Planetary motion. We also begin to describe Galileo's contribution to the heliocentric model and the death of geocentrism.

In this lecture we discuss the geocentric model of Ptolemy, the heliocentric model of Aristarchus and how Hipparchus tested it using the concept of parallax. We also saw how to use observations of parallax to measure the distance to celestial objects.

In this lecture we continue to examine some ancient (and still true) observations about the Universe such as dailly, direct, and retrograde motions of the stars and planets, circumpolar stars, etc.

This is part 2 of 2 separate recordings of this lecture since the video stopped recording again..... :-(

In this lecture we continue to examine some ancient (and still true) observations about the Universe such as dailly, direct, and retrograde motions of the stars and planets, circumpolar stars, etc.

This is part 1 of 2 separate recordings of this lecture since the video stopped recording again..... :-(