W. ROBERT BARNARD
teaching
The Ohio State University Columbus. Ohio WITH
SAMUEL SCHRAGE Unirenih/ of Illinois a t Chicogo Chicogo Circle, Illinois
Films for Chemical Education A s the expansion of film as a teaching aid increases it becomes obvious that improved communications between the teacher film producers and the commercial producers of educational films is essential. Therefore, this column will periodically present a series of film reviews to aid producers in evaluating the use of films already available and planning those to be produced in the future. This month we present three detailed reviews and capsule summaries, along with still scenes, of eight other films. Also shown are three new hardware systems (Figs. 1-3). Important contributions can be made by teachers and students of chemistry with the patience to review and comment on films in their areas. Suggestions of material to be reviewed and comments on the format, intentions, and contents of this column are solicited.
Film Reviews Analysis by Mass
International Film Bureau Inc., 332 S. Michigan Ave., Chicago, Illinois 60604. 27 min, 16 mm, color, sound. This film, produced in 1962, provides a fascinating introduction to the many sides of mass spectroscopy. Although the first portions of t,he film are sufficiently elementary to appeal to even a newsreel audience, the later treatment is a t R higher level, and the film codd be quite usefully shown to s. freshman class in general chemistry. T h e film begins with a discussion of isotopes, atomic number and weipht. then uroceeds to the historical and basic instrumental conceptB of messipectrometry, finally to a series of applications. These include the determination of structure of an ot'ganic compound by both medirrm resolution and high resolution mass
Programs of the Advisory Council
I n an attempt to inform the chemical community of useful films for lecture supplements or laboratory instruction, The Advisory Council on College Chemistry has prepared a catalog which is simply a listing of films available. The table below shows the format for three of the included films. Teachers may acquire the catalog from Dr. Rod O'Connor, Dept. of Chemistry, University of Arizona, Tucson, Ariz. 85721. I n addition, the Council also has produced recently Serial Publication No. 31, "Teacher Produced Instructional Films in Chemistry"; a short film on "Techniques for Teacher-Produced Films"; and a film clearinghouse for noncommercial, educational films on chemistry in 8 mm or Super-8 format. Films
Description Format of ACs Film Catalog
THE COMBUSTION PROCESS Collaborator: British Petroleum
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Co. Ltd.
126 ,- min. 16 mm. color. sound1 1966 ~
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Theory of combustion; ohemioal reactions inyolved: creation of the correct oonditions praot~oal consideration; applroat~ont o more efficient use 01 petroleum fuels. See The Royal Institute of Chemistry P. 131. FI.E\IFS'I~. CO>II'OCNIl~. >IIITCRF.< I m : l " ? I Akrun .dl I,,,, I i(lmm. I' \\'. r. 1, r iolln I
Ilal",,":
Explains through demonstration and illustration the physical and ohemioal
properties of two elements, of a mixtureof
ih~tl,,
and both i n compound form.
CORF, B/W, $137.50: odor, $275. ELEMENTS, COMPOUNDS A N D MIXTURES Collaborstor: I r s l Johns, Monsanto Chemical C o w (33 mi", 16 mm. color. sound) 1'36'3
Figwe 1. The Bole. Multimatic Projector and E. P. Cartridge. The newest rewind4ype eortridge projector introduced this spring we, cartridges bared on the 50-ft spool of fllm on which the original film is returned from the processor. To load the blank cartridges, .upplied with the projector, the teacher simply clips the inner end o f the Rim to the spool core and drops the spool into the cartridge. As many or six cartridges con b e loaded into the projector and i t projects them, one after the other, just or o record h v e r changer records. At the end o f one film the mochine changer over within recond;to the next fllm and carrier on projection while the rewind of the lart projected film tokes place in o reporote film path. f.p.%, Controls on the fop of the projedor are; lo) the selector for i b l the dow-motion switch which aiver one-third m e e d ~ r o i e c t i a nwithout flicker or reduction in light, ( 4 the forword/backword iwikh, Id1 a stillpicture proiection button which is o f the hoid-down-for-stills type I e l the REJECT button which you prerr briefly, to stop projection, chonge t o the next cartridge, and begin projecting again. Prerr the button longer, ond i t just rewinds the fllm. The choice o f lenr includes their top quality f / l 1 Hi-Fi 23 rnm or o n f / l . l room 17-34 mm lenr. The lamp i, the 15-V 1 5 0 - W tungstenhalogen with integral dichroic reflector which supplies the highest light of any commercial projector presently on the market. The Multimotic taker silent Super-8 fllm only, and olthovgh i t only taker 50-ft spool$, projection is soid to b e nearly continuous. For further informotion contact Paillard Inc., 1 9 0 0 Lower Rd., Linden, New Jersey 07036.
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Volume 46, Number 5, May 1969
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325
N e w Commercial and Teacher Produced Films
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Scene from "Half Time and Rate Conrtont of o Chemical Reoction," produced b y G i l Haight, University of illinoir a t the Advisory Council on College Chemistry's summer film content ond technique workshop. Thil ir an example of the silent Super-8 Rlms ovoiloble through the ACn clearinghouse. Additional titles available through the cleoringhouse include: Absorbance Meowrements Using the Spectronic 20, Conductometric Titrations, Critical Temperature, Determination of K n for o Weak Acid, Fluid-Row Simulation d Molecular Orbitals, ionic Equilibria, Light Abrorption & Complementary Colors.
stirring rod, Cryrtols forming on scene fmm "Cryrtallizotion" produced b y the Chemirtry Deporb ment of the State University of New York at Buffalo. A ~ e c o n dfilm on Grignord'r h m been prepored. Bath filmr ore used with sophomore organic elorrer during a pre-lob conference. Films ore Super-8, dent, and are projected with o Kodok 1 0 0 reel projector. Pmduced b y Dr. J. A. Garrison.
A scene from The Unlvers8ty o f Texo.
