FOR THE WIRELESS MAN.

Evening Post, Volume CXVI, Issue 145, 16 December 1933, Page 21

FOR THE WIRELESS MAN.

The tuning control dial on a wireless sot shown to the author a few days ago, reads from 0 to 100. The scale value of the.divisions in terms of wave-length appears to be the same at all parts of the dial. When .the set'is tuned for a station which broadcasts on 250' metres, the dial reads 20, for another on 306 metres, it reads 40, and* for a third on 416 metres, the reading is 79. Two Japanese.station's, which it has not been found possible to identify, are heard when the dial reads 52 and1

GB. On what -wave-lengths are these stations .transmitting? '" . ' ONE FOE THE ARMCHAIR. A fruiterer offers bananas at one shilling and nincpcuco a dozen or 17, for half a crown. Which is tho cheaper -way to purchase them? This is all that is asked of the armchair solvers, but those who have a special affection for decimal fractions Ire in.vited to find the price of one banana by; the more expensive method of purchase. BY PARCEL POST. The dimensions of a package which the Post and Telegraph Department will accept for the parcel post must be such that the length added to the girth does not give a total exceeding six feet. A certain person wishes to send"some light material which can bo compressed into two and a half cubic feet. Can a parcel large enough to contain this amount be sent by parcel post? . ' AN OLD PROBLEM IN A NEW FORM. Mr. Green employed two menj Bill and Cuthbert, to dig a piece of ground . for him,, and this they finished in a certain number of days. He was not altogether satisfied with their ways of working, as one of them was obviously much more efficient than tlia v other. Accordingly when his neighbour, Mr. Scarlet, employed the saina two men to dig another section ,of the same area, he advised his friend to divide the plot into, two equal parts. Each man then undertook to do his own half and no more. The result of this arrangement was that Bill worked for Mr. Scarlet one day less than for Mr. Green, whereas Cuthbert had to work for two days more than the time he had spent on his first nob. the problem is to find how many days they: had worked together for Mr. Green. It will be recognised that this is really an old problem in a new-dress. In the arithmetic book from which it was taken, the statement was in this form, one. man can reap the field in so many. days, the other in another number, how long together? < . l SOLUTIONS. ' One for the Armchair.—Forty. An Unfair Question. —Two-thirty; a.m. \ Anagram.—Claimed. Decimal, Medical. Declaim. Mustering Problem.^—72o sheep oa 836 acres." Suburban Trams.—They leave the terminus at 11, 26, 41, and 56 minutes after the hour. How Much Water.—At thirty-two ,and a quarter inches, because pressure is proportional to the depth. - Correspondence to Bos 1177, Wellington. '