Solution to Brain Twizzler No. XVI.
(As outlined on page 0.)
IT is clear that at the end of the seventeenth night the snail will be up 17ft from the bottom. At the end of the eighteenth day he will be at the top and will slide down two feet that night, but it will be two feet down the other side. Then, the remaining 18ft will be covered in two days and nights, nine feet each 24 hours, because in the daytime the snail, by exerting the same energy, will travel three feet plus two, which are the product of exertion which was made to "overcome the gravity pull on the way up, but which helps on the way down. In addition, there is the gravity tendency going down, giving two feet more* of progress, making seven feet, plus the two-foot slip while resting at night. Therefore, 20 days and nights complete the trip.
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Auckland Star, Volume LXIX, Issue 208, 3 September 1938, Page 13 (Supplement)
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155Solution to Brain Twizzler No. XVI. Auckland Star, Volume LXIX, Issue 208, 3 September 1938, Page 13 (Supplement)
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