... Bad Astronomy . ... Movies . ... Bitesize Astronomy . ... The trailers started running in theaters many months before the movie came out, and I knew right away that "The Core" was ripe for a BA review. I remember distinctly that one line in the trailer said that the reversal of the Earth's magnetic field wipes out all life every 700,000 years. ... So they really blew it in the movie; they could have used real science to collapse the magnetic field, instead of the silliness of stopping the core. ...
First Mid Term Date has Changed . Classes on Friday . ... Second Midterm Date is Changed to May 29 . ... Local Astronomy Stuff . ... Excellent Overview of the Early Universe . ... First Midterm Results . First Midterm Answers . Second Midterm Results . Second Midterm Answers . ... Study Guide for the First Midterm . Study Guide for the Second Midterm . ... WEEK 1: ANCIENT COSMOLOGY . ... The Universe in the first 0.01 -0.1 seconds . The Universe in the first 0.1 -1 second . ...