Show MERELY A LAW OF NATURE what at first looks looka like a peculiarity or of R ann I 1 n g IA V later atar la Is easy of explanation explanation afave you ever noticed ahen v hen the water has ha almost all run oat of the bathtub how hov the light particles on the surface seem then to race out much faster than the water watery I 1 As a matter of tact fac t they aro are traveling faster than most of the water but no faster than lhnn that on the surface the reason to Is not far ar to seek nang water even cren in a river goes at d different rates but fastest on the t top op surface right in fit the of the stream friction with tho the sides and bottom malies makes the water there KO go more anoro slowly so bo the he light partI particles cIeS on top of the water in the bathtub rush ahead at a good rate this peculiarity in rivers la 13 utilized by boatmen when they have to go up a swift stream they always paddle up near the tha bank banh and at curves as the water swings outward they take tho the inside bank for or there the water Is almost still on the other hand in n coming down the very center of the stream Is chosen sunday magazine |