What's Your Sign? Are You Sure About That?

For years, I've been attempting to show my students how horoscopes theoretically work (somehow the positions of stars on the day of your birth have given you a simplistic way to predict your personal future on a day-to-day basis).  I also attempt to show them that the idea is bunk--that it is a pseudoscience.

If you have not heard, recently it became public knowledge what astrophysicists have known for some time--due to a variety of factors, over time, the positions of the stars in our respective skies change.  Yup, that's right.  Your sign is probably wrong.  There had been 12 signs, but a 13th has been added.  The stars have moved about a full zodiac sign in the past 2000 years.  While astrologers are upset about this and claim otherwise, it just seems like a bit of cognitive dissonance to me.  For more details, read the article in Time magazine from the January 31, 2011 issue.

posted by Chuck Schallhorn

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