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Spring 2008  Astr 10  4/24  Lecture 4.2  
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"When I have a kid, I wanna put him in one 
of those strollers for twins, then run around 
the mall looking frantic."
--Steven Wright

TODAY: STAR TWINS AND SIBLINGS
Binary Stars Interactive Module (*.swf, 100 KB)
     (McGraw-Hill Publishers)
Mass transfer
     Figs. 21.15 and 21.16 (*.gif)
     (Fix, _Astronomy: Journey to the Cosmic Frontier, 4/e)
In-class activity 24 (*.pdf)
     Find and sit in your assigned groups
     Turn in group worksheet
In-class activity 25 (*.pdf)
Close binary black hole simulator (*.jpg)
     Black hole and companion star (*.mov, 3.9 MB)
     (SpaceTelescope.org)
"Fsst vs. kablooey"
     Tycho's 1572 type Ia supernova (*.mov, 1.5 MB)
     (SpaceTelescope.org)
CPS activity: Quiz 10 review
     You must use your own clicker for participation credit

NEXT TIME 
Quiz 10 Announcements
     Tuesday, 4/29, 1:00-1:15 PM
     Closed-book, closed-notes
     Five multiple-choice questions
          (spread out over the three Q10.x learning goals)
     No work needs to be shown; no partial credit
     No scantrons; circle answers directly on Quiz
     **USE YOUR OWN UNIQUE 4-DIGIT P.I.N.**