Northeast High School - Nor Easter Yearbook (Kansas City, MO)

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Q ls. y . P 'jf iii x ji' . , v 30 , APPLIED ARTS SCIENQYE, . ERICH SOBOTA, Editor. THE PARALLELOGRAM OF ' FORCES. f'Wliy should I go to High School? I wanta be an Admiral of the U. S. Navy. High School don't learn you nuthin' about sailinf I'm gonta enlist and learn from the ground up. Yes, Mr. N. E. Beauee, y-ou could learn to navigate, and be an Admiral in such a manner, but why not take a W WWW Wg. R wg g ff ' S short cut through high school, and then a shorter cut through college? High School does teach you some things about navigation. For example, let my explanation of how the Parallel- ogram of Forces Cwhich is causing some students' of physics to worryj is applied in the sailing of a racing yacht, like 'one of those which competed in the races between the English and American yachts, or a fishing smack. Look at this diagram. In sailing againstithe wind, the sail, AC, is turned as you see it in the diagram. The wind is blowing in the direction indicated by the lines from W to AC. The wind will force the boat .to go in the direction N, if the rudder is turned in the direction R. Consider the entire force of the wind W as being concentrated at B and its magnitude represented by DF. Then, applying the Parallelogram Law and constructing a parallelogram with FD as a diagonal or, in other words, resolving the force of the wind into its effective and non-effective components, the effective force which is pushing directly against the sail is found to be equal to LF or FG. But all of the force LF is not ex- pended in driving the boat forward, since the effective component of DF is pulling at right angles to the sail. This effective component is equal to LF or BY, Therefore, resolving the force BY into its components which are acting parallel with and perpendic- ular to the boat, BX is found to be the effective force which is driving the boat forward and BZ is found to be the non-effective .force which is blowing directly against the side of the boat. The force of the wind against the side of the boat, however, is not great enough to overcome the friction of the keel and side- of the boat against the water, thereforeithe boat is driven forward by the effective component. cv th ag svx thi so pa l1l'11 no ba th: 4 u lea on tio C?l is cie ap1 of bri tio bir car mo tha sto ant the in the sen I can not che we stic tist like you tak girl hea fing T forf ing

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- K- '- '- '1' 1 T3 T7 ing, - 13,q,,.r..., .i ap.. .. ., 1 Q.. . , V ,, , , , and ick. ailing I, is gram. :cti-on J AC. go in ,irned the at B f DF. gram gram other wind :ctive Nhich pail is at CX- ward, f DF : sail. ial to g the which indic- to be riving nd to ich is de of wind vever, ie the rf the feithe ective 'M or' easter' 23 It will not be driven forward, how- ever, unless the rudder is turned in the direction R. The force of the wind against the sail will cause the boat to swing around and turn directly into the wind, if the rudder is not turned so as to guide the boat away from a path which will head it directly into the wind. If the tendency to turn is not overcome, the boat will be blown backward, since the sail is turned so that the wind can not blow against it. So, my friend, you see what can be learned in High School. And this is only one of the many practical applica- tions to any form of navigation that can be learned in High School. . . LE ROY SMITH, 125. ' CANDLESTICKS. The English language, enriched as it is with the contributions of the an- cients, comes to us surcharged with apt and expressive words. Not least of these is the word, candle, which brings to mind many pleasant associa- tions. Who can ever forget his first birthday cake- .with its few burning candles? Likewise viewing the cere- mony of lighting the Christmas tree so that Santa cannot fail to find the stockings is one of childhood's pleas- ant experiences. We see candles on the altars of churches, we see candles in homes and business offices when the electric light company declares a semi-holiday. In the days of our forefathers the candles themselves were home made, now that they can be obtained very cheaply this is no longer done. Instead we turn our attention to the candle- stick which may make or mar the ar- tistic effect of the whole. Would you like to make one for yourself? if so, you should take Turning. Northeast takes pride in teaching her boys and girls to use their hands as well as their heads, though it saves tempers and fingers when both work together. The first two things necessary be- fore the actual turning are the draw- ing or selecting of- a design and the choosing of the wood. VValnut and mahogany are the most' popular, a sllght preference being shown for the former, maybe because it requires less finishing. But do not ,think for a minute that we are prone to be lazy, you would not be either if Mr. Ellis were your teacher. The first mechanical part begins when the wood is cut by the band saw, the greatest precautions being taken to prevent the finger nails from being manicured at this time-an unpleas- ant sensation, I assure you, when done by a band saw. After the sawing, comes the centering and the boring of the candle holeiwhich-requires a keen eye and a steady hand. Next the up- right part of the stick is put in the lathe and the corners turned off. Then about an inch of the bottom -end is turned down to a specified diameter and glued into a hole in the base, which was bored for this- purpose. When the glue has set for twenty-four hours the object, for no other name suits it, is put in the lathe and turned to match the design as nearly as possible. , Then the candle- stick, for such it has become, is sand- papered. During this procedure too many 'amateurs take this opportunity to dream,.but they are rudely awak- ened by aburning sensation in the finger applying the sandpaper. After this experience they dream no more, but tell their minds to get on the job as Doctor Barker advised them to. Then the wood filler and shellac are applied, sometimes followed by varnish and pumice stone. ' But despite a few misfortunes, the candlesticks when finished are a de- light to the eye, of the maker at least, although the two sometimes may be somewhat dissimilar in appearance. Notwithstanding some minor injuries such as skinned knuckles, injured pride and shattered hopes, we have trans- formed a block oi' wood into a thing of beauty, and you know, a thing of beauty is a joy forever. ' V LINNEA HOLM.