What is the nature of life? In this lecture I will review the revolution
in biological thinking that has dramatically changed how we view life.
I will review such persistent ancient ideas as spontaneous generation
and why it took so long to disprove this notion, the impact of the
microscope on biology, and the discovery of the laws and agency of heredi ... Show More
Oct 2009
Lecture 9: Inside the Earth
What is the interior structure of the Earth and how does it drive the Earth's magnetic and geologic activity? We will review our current knowledge of the interior of the Earth, how we measure it using Seismology, the origins of the Earth's magnetic field, and discuss the workings ... Show More
42m 47s
Oct 2009
Lecture 10: The Earth's Atmosphere Erratum
This lecture was to be about the Earth's atmosphere, its composition and structure, the greenhouse effect, and the primordial atmosphere, but about 2 seconds into the lecture, unbeknownst to me, the battery compartment on my digital voice recorder came open in my pocket. At the e ... Show More
1m 17s
<p>La durée de vie d'une étoile peut nous renseigner sur sa composition et sur l'existence éventuelle de la vie dans le cosmos. mais, en dehors du Soleil, il est assez difficile de déterminer l'âge d'une étoile.</p><br><p>L'importance de la masse</p><br><p>En évaluant, grâce à la ... Show More
