Message Archive  -  Ph 137, Winter 2009                                                                 

   (0) Weather Underground:  Current Alaska Conditions (permanent)
 
 
(1) Welcome to Physics 137.  Have a great semester!  (December 29, 2008)
   (2) Earn extra-credit points by identifying your instructor's mistakes.  If you encounter an error in the course outline or any of the other course
        materials posted on-line, be the first to notify your instructor and earn one point of extra credit (the same as the credit value of a correct quiz
        response) for each mistake you find.  Notify me by email at
cgchristensen@byu.edu.  (Errors discovered in the links over which I have no
        control don't count.)
 
(December 29, 2008)
  (3) If you are unable to submit a CID# via the link posted on the course outline, please email your
CID# to cgchristensen@byu.edu.  Thank you.
      
 (January 7, 2009)
  (4) Three years ago a Ph 137 student with a desire to become a TV weatherman sought some career advice from me.  As I am not a meteorologist,
        I contacted Mark Eubank of KSL-TV who was the senior Channel 5 weatherman at that time (he is the father of current Channel 5
        weatherman Kevin Eubank) for his advice.  Some of you may be interested in his response.
  (January 7, 2009)
 
(5) Current US snow cover map.  (January 9, 2009)
 
(6)  Megan will be available to assist with homework this coming Saturday (January 17) from 10:30 am until 1 pm in C247 ESC (our classroom).   
           (January 12, 2009)

 
(7)  Megan has scheduled C261 ESC for a Thursday evening homework help session from 5 pm until 7 pm.  (Rooms were not available at an
        earlier time.)
   (January 14, 2009)
 
(8) Is there evidence for an inversion?  (January 18, 2009)

  (9)  Is the inversion still present?   (January 21, 2009)
(10) A few of you have not been submitting homework.  If you make this choice, since 20 percent of your possible earned points are based on
        homework, it will likely have a severe negative impact on your grade. 
(January 30, 2009)
(11) Click here for image of last week's eastern ice storm.  (February 2, 2009)
(12) Someone (who did very well) submitted today's quiz with the CID# of 4610.  I have no record of such a CID#.  Please identify yourself, either
        by email or in class on Friday, and I will award you your earned points.
  (February 11, 2009)
(13) The score histogram for Unit Test #1 has been posted.
  (February 13, 2009)

(14) Megan will be conducting a homework help session and unit review for Test #2 at 5-7 pm on Thursday, February 19, in C261 ESC.  (February 18, 2009)
(15) The scheduled dates for Unit Test #2 have been changed from Thursday-Saturday, February 19-21, to Friday-Monday, February 20-23.  If this
        change creates a scheduling problem for anyone, please contact your instructor on Thursday and arrangements can be made for you to take
        the exam as originally scheduled.
 As before, the last day will be considered a late day and a fee will be assessed.   (February 18, 2009)
(16) Again, your instructor invites you to seek clarifications and earn extra credit in the process by submitting "fog" questions.  Please review the
        statement on "fog" in the syllabus.
 (February 20, 2009)
(17) The assignments for in-class weather forecasts have been added to the class schedule.  The order of the presentations was determined at
        random.  If anyone has a problem with the date assigned you please let your instructor know immediately.  There are certain expectations
        I have for these presentations.  Please click here to see my expectations.
  (February 23, 2009)
(18) Why Ice-fishing in Alaska sucks.  (February 23, 2009)
(19) Review the five toughest questions on Unit Test #2.  (February 26, 2009)

(20) I have noted in that past that some, mostly non-local, students have been confused when we have discussed local weather because it is often
       convenient to describe it in the context of local geography.  To reduce such confusion I have here posted a local topographical map on which
       are identified those features most likely to be mentioned in class.  Please study this map until you are familiar with its named locations and
       features.  This should be of some help to those giving forecasts and to all in interpreting those forecasts. 
(February 26, 2009)

(21)One of you submitted homework assignment #5 with a CID# of 0219.  No one in the class has such a number, so, whoever you are, you
       received no points for that assignment.  Please identify yourself and I will award you the points you earned.
 (March 2, 2009)
(22) Megan has reserved 285 SWKT on Tuesday from 3-5 pm for a Test #3 review.  (March 16, 2009)
(23) Extra Credit Opportunity!  This week's Physics Department colloquium will feature Barry Klein from UC, Davis, whose topic will be"
Climate
       Change and Energy Issues: a Challenging Complex System in Search of a Solution:  Travels of a Physicist into Energy and Environmental
       Policy Issues."  This presentation will occur at 4 pm on Wednesday in C215 ESC.  You may earn 10 points of extra credit by attending, then
       submitting a statement to me on Friday giving your CID# and stating "One thing I learned from Dr. Klein's lecture was _________________."
       (Don't forget to fill in the blank.)  The presentation will be at a level that could be a bit challenging to follow, but I believe you will benefit by
       attending.  Please come a few minutes early and enjoy some of the refreshments provided for attendees.
  (March 16, 2009)
(24) Thanks to David Paul for these images of a recent Austin, Texas, hailstorm as captured by his brother.  (March 30, 2009)
(25) Megan will be unavailable for the normal Thursday homework help session this week.  If you need her assistance please contact her via email
       at
stargirl_199@yahoo.com.  (April 1, 2009)
(26) Blowing snow on Cascade Mountain, last week. 
(April 3, 2009)
(27) Thistle landslide, April, 1983.  (April 3, 2009)
(28) Click here to see a photo of palm trees in Barrow, Alaska (on the shore of the Arctic Ocean).  (April 6, 2009)
(29) Click here to see the times and places for Megan's upcoming reviews for homework and tests.  (April 6, 2009)
(30) For 5 extra credit points, please complete the on-line teacher evaluation.  To receive your points, do not hide your identity.  (It is not linked to
        your responses.)  Thank you. 
(April 13, 2009)
(31) For your entertainment (since its the last day of class):  Beware the motives of your admirers (April 13, 2009)
(32) Tip for a better test performance.  (April 13, 2009)
(33) To all those students who attempted to attend the semester review session on Wednesday, I offer my apology.  For some reason I thought I
        had scheduled the session at 12:00  pm, not 11:00 am, so I came one hour late.  I am truly sorry that I caused you the inconvenience of
        coming to a help session that didn't happen.  Although I cannot give you back the time you wasted, I have rescheduled the review session for
        tomorrow (Thursday) and I promise I will not miss this one.  It is at 10:00 am, in 445 MARB (our classroom is not available), and will last
        until 11:45 am or until there are no more questions, whichever comes first.  I hope to see many of you there.
  (April 15, 2009)
(34) I must leave the review session tomorrow by 11:45 am to attend an afternoon retreat for a university committee on which I serve.  However
        Megan will be available until 1 pm, but the review must move to 393 CB for the 12-1 hour.
 (April 15, 2009)
(35) (a) Your unit exams and graded homework are available in a box outside my office door.  (b) There was a key error on unit test #4.  Many of
        you will receive a couple more points, but it will be a few days before I make the correction.  (c) The observing projects are not yet graded.  I
        will put them out with the homework after they are all graded.  (d) I hope you've enjoyed the snow.  (e) See you all on Monday at 11 am.

          (April 17, 2009)

(36) Unit Test #4 scores have been corrected.  14 of you received 2 more points; 5 of you received 2 fewer points; all others had no change of
        score.
(April 20, 2009)
(37) Have a great spring and summer!  (April 22, 2009)