CORRESPONDENCE

New Zealand Listener, Volume 2, Issue 38, 15 March 1940, Page 16

CORRESPONDENCE

A. Smither (Christchurch): Your elucidation is expert. Hugh F. Bradley (Kati Kati): Correct, correct. Sunding (Tohunanui): Says the answer to the ladders-angles problem was 400 feet. Was that an extra nought, or does Tohunanui have wide streets. Other answers accurate. P.J.Q. (Motueka): Provided our answers to Magnets and Mr. Blimp, and scored 100% in several others to make up for what he now admits was an error in stating the cyclist’s average. C.K. (Homeless): Writing this on 5/3/40, in eager anticipation of 6/3/40. V.C.R. (Gisborne): Is also concerned about the Alfa Romeo, and asks us to inform J. B. Hogg that the dog will overtake the hare in 3.9/22 seconds, when the hare has travelled only 25 yards. So that’s finally disposed of a very troublesome hare. R.D.J. (Ranfurly): Wants to know (1) if a bullet is fired from a moving train what difference does the speed of the train make to the speed of the bullet; and (2) what happens when a railway trolley (supposedly impervious to destruction) strikes head on against a moving train? Does the trolley stop momentarily, he asks, and is the train therefore also momentarily stationary? S.J.S. (Spreydon): The cricket club is in good hands, but you crock on the curtate cycloid. Gerald M. Williams (Kaiapoi): Says the problem about the ladders and angles is impossible. He supplies an argunient, but we hold it until satisfied that the relationship of AX to AD is necessarily constant. We find it could vary a lot, but we’re human, too. A. H. Johnstone (Morrinsville): Appreciation reciprocated. The parlour problem will spin a web of worry in their brains. Kupe (Glen Massey): Still in seclusion over the ladders, and Mr, Williams is making it more complicated. Trier (Christchurch): Cricket and ages later. Thanks for the other. W. G. Wareham (Dannevirke): The point on the flange can never touch the rail. If it did the train would go off the line. We are still defiant. L.C.T.: This just to say we have not forgotten you, Sylvia: It is framed. A.M. (Sandringham): Afraid we never use books, but understand there are numerous publications. You should write to a good bookseller and so save us the delicate task of discriminating between publishers. S.G.E. (Glenavy): We plead guilty, on both counts. You have been too persistent. Shall pass on the problems. R.D.J. (Ranfurly): Only sixty-six and onethird per cent. R.W.C. (Sumner): Not bad. Schoolboy, aged 14 (Waimate): Matriculation this year? Good, Marion and Lal (Cambridge): Wife right, husband wrong. Tut, tut! See above for bullets and trains. © L.C.T.: In a later letter, he solves his own problem about Mr. Blimp, but misses on the Green Funnels. W.H.P. (Whangarei): Eight butts, but more boats. Legacy later.