Tag: Advent 2013
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A sudden star (Science Christmas)
(My mother went into the hospital during my holiday visit, which understandably prevented me from posting the final Science Advent entry. So, here concludes the holiday season series with my Christmas gift to you.) Day 25 (Christmas Day) Sometimes a star surprises us by becoming suddenly much brighter. One was an unmemorable star known as…
Galileo's Pendulum 