Glebe Collegiate Institute - Lux Glebana Yearbook (Ottawa, Ontario Canada)

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UX GLEBANAGXQQ QEPALERE FLAMMAM SCIENCE CLUB EXECUTIVE Standing: V. Rocim is. MAUNDRELL J. GILLET C. IRVING J. FAIRBAIRN E. Ac'roN H. coimoiw A. Jomas ilibrarianj R. Locicizmzuo Silling: n. lKIOTIIIZRWl2I.L T. MCDONALD Ctreasj 1. nRoNsK1LL Csecj R. uiusimoxn Cpresj MR. BULLOCK fsponsorj R. CUNNINGHAM Cvice-pres.J M. NARRAWAY HERE AND THERE IN SCIENCE So nmch static electricity accumulates on one New York skyscraper that a neon tube may be lighted by touching it to a door-knob. A rivet of real ink Hows in Algeria. It is formed by the confluence of two rivers, one of which flows through soil impregnated with iron and the other through swamps containing tannin. These two uniting form iron tannate, the chief constituent of ink. Saccharin, three hundred times sweeter than sugar, is made from coal-tar. Silver, in an ionized state, is now being used to purify water in swimming tanks. The energy expended by one hundred thousand enthusiastic 1'0OtC1'S in yelling at a rugby game, if transformed into heat, would only be enough to boil one cup of tea. Grapefruit skins are now made to yield oils from which dainty perfumes are made. A thirty-mile-an-hour wind blowing across a road exerts a goo-pound side push on a car travelling sixty miles an hour. By the latest computation the weight of the earth in grams is two followed by fifty-five noughts. If you want this in pounds divide by 453- rl Some electric fish generate enough current to ring a door bell. Gold is so ductile that a single pound may be drawn out into a Hne wire ooo miles long. Rattlesnake venom and the white of an egg are formed by the same elements in exactly the same proportions by weight. There are 5oo,ooo known species of insects. Only 300 of these are enemies of man. If you live to be seventy years old, you have talked for thirteen years, have been eating for six years, have spent twenty-three in pleasur- able pursuits, have spent eighteen months in keeping clean and have slept for twenty-three years. What a life. Gasoline is now being made from coal at Billingham, England. Solid gasoline has recently been made at New York University. lt does not catch fire or explode when incendiary bullets are fired 1nto 1t. A new altitude record for balloons was set last October. The stratosphere was pierced to a height of 74,187 ft. or I4 miles. The lowest temperature recorded was 76 degrees below ZCYO- -V. ls. B. 89?

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UX GLEBANACY5- HOW SMALL IS If an ordinary electric light bulb had a small opening made in it so that one million mole- cules of air could enter each second, it would require one hundred million years to com- pletely fill the bulb. The molecules in the smallest drop of water if enlarged to the size of grains of sand, would form a roadway from Montreal to Vancouver one half-mile wide and one foot thick. A soap bubble blown to a thickness of one three-millionths of an inch is estimated to con- tain twenty to thirty layers of molecules. QAHDALERE FLAMMAM A MOLECULE? Oil will spread out on water into a film a fifty-millionth of an inch thick. This layer consists of a double tier of molecules. A single bubble of chlorine gas will scent up a largelroom. It must pour forth trillions and trillions of molecules. The molecules in a single grain of indigo will distinctly dye a ton of water. A grain of musk will scent a large room for years. THE STRUCTURE OF MATTER AND THE SPEED OF THE ELECTRON All matter consists of the very minute mole- cules mentioned above. Each molecule is made up of atoms varying in number, and the atom consists of negatively-charged particles called number of positively protons. of the atom gives the comprises all the pro- electrons. Hence its The rest of the elec- electrons and an equal charged particles called The nucleus or core atom all its weight and tons and most of the total charge is positive. trons rotate about this core like planets around a sun. I-Iowever, the total negative charge on all the electrons, whether planetary or in the nucleus, always exactly equals the total positive charge borne by the protons. The number of planetary electrons and the number of orbits they travel in, varies con- siderably with the total weight of the atom, and hence is not the same for any two ele- ments. Thus, the hydrogen atom fthe lightest elementj has only one proton in the nucleus and no electrons, and has only one planetary electron. The atom of Uranium fthe heaviest elementj has a nucleus consisting of 238 pro- tons and 146 electrons while the other 92 elec- trons rotate about the nucleus in seven orbital I II III COMPARISON OF ATOMIC STRUCTURES paths. These electrons appear to jump from one path to another, but always have the same number in each orbit at all times. The atomic weight of uranium is 238, the same as the number of protons in the core while the atomic number is 02-the number of planetary elec- trons. One element may be changed into another by bombarding it with energy particles small enough and travelling fast enough to penetrate the planetary electrons and knock out some of the protons. This is very diHicult to do and has been done only with some elements of low atomic weights. The planetary electrons travel at terrinc speeds which vary with the atomic weight of the element. The following comparison of velocities is rather astounding: 1. Wor1d's record 100 yds. race for men ..........,. 32.6 ft. per sec 2. A large gun shell ...................,....,............,........ 3,000. ft. per sec 3. Eng1and's fast train record ................. .. 163. it.. per sec 4. A motorcycle, .....,.......,,,.............,.... .. 150. ft. per sec 5. Sir Malcolm Campbell's racing car.. ..... 440. ft.. per sec 6. The aeroplane speed record ........... ....,..... 6 45. ft. per sec 7. The earth aboutthe sun ..........,.. ......... 9 7,68D. ft. per sec Total of all these .,............................... ,102,110. ft. per sec or 19.3 miles per sec. Now considering the following: The hyd ro.. gen electron has a speed of I,3OO miles per sec. while the uranium electron has a velocity of I2 5,000 miles per sec. The hydrogen electron makes as many revolutions per second around the nucleus as a high speed aeroplane propeller makes in four million years. I-Uranium Atom. 92 Planetary Electrons. 146 Nuclear Electrons. ll-Zinc Atom. 30 Planetary Electrons. 3 5 Nuclear Electrons. III-Hydrogen Atom. 1 Planetary Electron. 1 Nuclear Electrons. i'l88l

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UX GLEBANAWQQQ- QEPALERE FLAMMAM TRIP TO CORNWALL The outstanding trip undertaken by the Science Club last year was the visit to Cour- tauld's Rayon plant at Cornwall. This journey was made possible by the Club's annual dance, the proceeds from which contributed greatly to defraying the expenses. Fine weather on Saturday, May 11th, en- couraged 38 club members, escorted by Mr. Bullock and Mr. Merkley, to turn out. We left the school at 9 A.M. in a large Ottawa Electric bus chartered for the occasion. Travelling via Winchester and Morrisburg, we arrived at Cornwall shortly after 10:30 A.M. Having been graciously received by the officials, We were divided into two groups and commenced a tour of the plant. Beginning at the sheet pulp stage, our guide showed us every phase in the manufacture of viscose rayon, end- ing with the fine silky skeins of the finished product. Before leaving, we were given some splendid literature describing the process, a welcome addition to the club's library. This terminated our visit at Courtauld's, and having lunched in Cornwall, we left for home, reaching Ottawa around 4130 in the afternoon. All those present enjoyed the trip immensely and are looking forward to a return visit. The members of the Science Club greatly appreciate the kindness of the Company's officials in mak- ing this journey possible, and the trouble taken by our guides in explaining every step of the PYOCCSS- -R. C. CUNNINGHAM. .-1-9-4-Qi. . McDonald: Why do women live longer than men? Miss Dewar: I don't know. Why? McDonald: Because paint is a preservative. Miss Acton: Here comes a friend of mine. He is a Human Dynamo. Miss Steele: Really? Miss Acton: Sure, everything about him is QSave the surface and you save allj. charged. PKI 3? 'Ks FK: fl? :lf Maundrell: Say, what in the world is a good Budding Scientist: What is steam? cure for f'halitosis ? Blooming Scientist: Water in a high state of Dowd: Keep your mouth shut, or develop perspiration. lockjaw. ff :lk 'll' 'Y if Spark'Plug: I got Hred to-day. Mr. V. E. B. C at the conclusion of a lesson on Battery: That's nothing, I got discharged gas pressurej: Are there any questions you too. would like to ask? al: if if ones who ho es to be a law er : I would Mr. Bruce:-'fWhat do you know about , P , ,Y I . . like to know how Bo le s Law IS enforced? nitrates? y ' I 77 Mr. V. E. B.: Apply a little pressure. Studentz- 'They are cheaper than day 1'2ltCS. 5 - - Eggjgaqgasggge. .... Inthelwbrnuqgqflqhv- ,il ff gg'-. -, 1 Eiiiiiiauiafaivaw If you start to save now, you .,.. open up pathways to future g : success, for opportunity often cannot be grasped unless you gg have money behind you. +lQ. f A175 252 Q ijiswfzz- S Lisa ' if I. R o Y A L B A N K 490i