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Test 1241: Case 2870 Diesel, Nebraska Tractor Test Lab Jan 1977

Test 1241: Case 2870 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1242: Ford 7700 Diesel 16-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1242: Ford 7700 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1243: Ford 9700 Diesel 16-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1243: Ford 9700 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1244: Ford 6700 Diesel 16-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1244: Ford 6700 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1247: International 1086 Diesel 16-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1247: International 1086 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1249: John Deere 2840 Diesel, Nebraska Tractor Test Lab Jan 1977

Test 1249: John Deere 2840 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1250: Massey-Ferguson 255 Diesel 12-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1250: Massey-Ferguson 255 Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1258: Massey-Ferguson 2805 Diesel 24-Speed, Nebraska Tractor Test Lab Jan 1977

Test 1258: Massey-Ferguson 2805 Diesel 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1260: Allis-Chalmers 7020 Power Director Diesel, Nebraska Tractor Test Lab Jan 1977

Test 1260: Allis-Chalmers 7020 Power Director Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Test 1266: John Deere 4240 Diesel, Nebraska Tractor Test Lab Jan 1977

Test 1266: John Deere 4240 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Spotlighting Excellence, Dave Mccalley Jan 1977

Spotlighting Excellence, Dave Mccalley

Iowa Science Teachers Journal

This article begins a continuing series of personal sketches concerning recipients of the annual Iowa Academy of Science Excellence in Science Teaching Awards. In this article, the recipients of the awards in biology and elementary science teaching, Owen Primavera and Diana Brill, will be featured.

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Thomas Edison Jan 1977

Thomas Edison

Iowa Science Teachers Journal

Thomas Edison successfully produced rubber from goldenrod.

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Ias-Aaas Incremental Investigative Grants For High School Students, Lynn W. Glass Jan 1977

Ias-Aaas Incremental Investigative Grants For High School Students, Lynn W. Glass

Iowa Science Teachers Journal

In an attempt to encourage Iowa high schools to provide support for investigative science activities, the Iowa Academy of Science, with the financial support of the American Association for the Advancement of Science, has created an Incremental Investigative Grant Program. These grants, beginning with the current school year, are available for appropriate scientific investigative activities by high school students working under the sponsorship of a science teacher.

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The Plant Kingdom: A New Energy Source Jan 1977

The Plant Kingdom: A New Energy Source

Iowa Science Teachers Journal

Besides being an energy source for themselves, plants are the ultimate energy source for all other forms of life.

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Uni Symposium Jan 1977

Uni Symposium

Iowa Science Teachers Journal

The University of Northern Iowa will host its fifteenth annual Science and Mathematics Symposium on November 10-11, 1977.

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The Welk Effect, Joe Moore Jan 1977

The Welk Effect, Joe Moore

Iowa Science Teachers Journal

To get a Niagara Falls of bubbles, place about 5 gm of manganese in 100 ml graduated cylinder, fill the cylinder three-fourths full of a "Halo" type shampoo solution and add about 5 ml of hydrogen peroxide.

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Will It Work In Iowa? Jan 1977

Will It Work In Iowa?

Iowa Science Teachers Journal

The embankments of many Austrian highways today show on both sides of the road a new installation: game-warning reflectors which are designed to divert beams from car headlamps into the adjoining countryside. The basic idea for the installation of the reflectors has been derived from the studies of the Institute of Comparative Behavior Research in the Austrian Academy of Sciences, which concentrated on the effect on animals of "eyes" and "eye dummies."

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Patriotic Phenolphtalein, Joe Moore Jan 1977

Patriotic Phenolphtalein, Joe Moore

Iowa Science Teachers Journal

To illustrate the "patriotic nature" of phenolphthalein, prepare a dilute solution by dissolving 0.1 gm of phenolphthalein in 100 ml of ethyl alcohol and dilute with 50 ml of water.

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Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider Jan 1977

Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider

Iowa Science Teachers Journal

It has become common in recent years for non-scientists to react rather disdainfully toward research projects that ad dress what appear to them to be highly specialized areas of interest and which, from their titles, offer little good for mankind. Those of us who spend great portions of our waking hours engrossed in these studies tend to over-react in the other direction by holding our endeavors in an exaggerated esteem that tends to preclude an appropriate assessment of their essential merit. As is usually the case, the proper perspective lies somewhere in between.

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What Makes Your Garden Grow?, Joe Moore Jan 1977

What Makes Your Garden Grow?, Joe Moore

Iowa Science Teachers Journal

To illustrate crystal formation, dissolve 35 ml of sodium silicate into 150 ml of water placed in a 400 ml beaker.

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A Philosophical Approach To The Meaning Of Science, James Slock Jan 1977

A Philosophical Approach To The Meaning Of Science, James Slock

Iowa Science Teachers Journal

It would seem to be a rat her simple matter to define what science is and how it operates. After all, a good portion of our high school and college careers have been spent in science classrooms and laboratories. Possible answers might be that science is an organized body of knowledge and that it operates by discovering the truth about nature through the use of scientific method. It seems equally simple to visualize science as a massive pile of bricks with each scientist adding a new brick each time he discovers a new fact or invents a new theory. Further, …

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Ice - The Common, Yet Strange Substance, Dennis Barnaal Jan 1977

Ice - The Common, Yet Strange Substance, Dennis Barnaal

Iowa Science Teachers Journal

Ice has been the focus of studies by physicists, chemists, geologists and even biologists for many years. Ice represents a basic example of the hydrogen bond which is present in many important organic molecules. In some parts of the world, ice or permafrost is an important constituent of construction. The movement of glaciers and formation of hailstones represent aspects of ice physics. Cell water in living cells appears to be ice-like. However, ice is still not fully understood. An international conference on the physics and chemistry of ice is held approximately every four years.

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New Units Available Jan 1977

New Units Available

Iowa Science Teachers Journal

Agricultural Research Service scientists and high school teachers have combined their skills to create innovative science units.

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Mood Rings Jan 1977

Mood Rings

Iowa Science Teachers Journal

The "stone" of the mood ring, which supposedly changes colors as your emotions change, is composed of photographic paper similar to that used in the construction of digital thermometers that change color as temperatures fluctuate.

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"Fore" Physics, Rick Zehr Jan 1977

"Fore" Physics, Rick Zehr

Iowa Science Teachers Journal

I have developed an activity which I would like to share, in the hope that it might prove educational as well as enjoyable. In Chapter 1 of the Project Physics there is a brief history of photography, which in itself is quite interesting, but one picture specifically lends itself to additional study. The photograph of the golfer provides the basis for this activity. The students are asked to work in small groups to determine the speed of the ball.

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Snowflakes You Can Keep!, A. C. Haman Jan 1977

Snowflakes You Can Keep!, A. C. Haman

Iowa Science Teachers Journal

Are all snowflakes the same shape? To answer this question have students try the following procedure, used for the preservation of snowflakes, outlined in a recent Kalamazoo Nature Center Newsletter.

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Another Christmas Experiment, Glen Loveridge Jan 1977

Another Christmas Experiment, Glen Loveridge

Iowa Science Teachers Journal

In the December 1974 edition of Iowa Science Teacher's Journal, p. 24, I described a peanut brittle lab which could be done just before Christmas. This year I would like to describe a Candy Cane Lab.

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Energy Jan 1977

Energy

Iowa Science Teachers Journal

If energy was delivered to your door like milk -- today, you would have had 19 half gallons of oil, 14 half gallons of natural gas, and 46 pounds of coal on your doorstep.

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Aging Iowa Trees, Roger Q. Landers Jan 1977

Aging Iowa Trees, Roger Q. Landers

Iowa Science Teachers Journal

How old is this tree? Or that one? Unanswerable questions to most people, unless they are there when it started growing, but with proper techniques, equipment, and a bit of skill (or luck), it is not so difficult to determine the age of a tree. Because trees grow in girth by the addition, each year, of a layer of wood just inside the inner bark, these layers can be counted when they are clearly exposed. We usually see the layers exposed as rings on the surface of a stump, hence the study of aging trees is referred to as "tree-ring" …

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Iowa Landforms Jan 1977

Iowa Landforms

Iowa Science Teachers Journal

A new publication, A Regional Guide to Iowa Landforms, is now available as the Iowa Geological Survey Educational Series 3.

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