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Engineering: Because Dreams Need Doing*


Engineering at its core is about creativity and design.  The joy of a completed project is really amazing.  When the electric car project successfully rolled out of the shop on May 6, for the first time fully on electric power, the students on that project started whooping it up, running around, and even jumping for joy.  My students “saw that it was good.”  I wished I had a camera with me to record that exuberant moment but I did not.  Instead, I’ve tried to convey the joy of success at an engineering project via the stock photo above.  (From http://www.sxc.hu/photo/1033778 )

Many times have I talked to someone, usually a parent or teacher, who tells me of a young person who is, “really really good at math and science,” and recommends that this person would make a good engineer. This is a typical stereotype of engineering—that engineering is all about math and science.  Some engineering colleges are even located in the “Math and Applied Science Building” or “Math and Applied Science Division.”  That’s a really superficial view of Engineering.  Talent in math and science helps, but that’s not the whole story.  Sometimes students who have average talents at math and science do really well at engineering because they are creative.

Let me get back to that feeling of joy upon completion of a project. . . (I want to successfully finish another project!)  This joy in creativity is part of our humanity.  We are created in God’s image and God is a creative God.  Our creativity is a reflection of God’s creativity.

But there’s more.  God’s creativity is rooted in His love.  In the Genesis creation story each day ends with, “and God saw that it was good.”  At the end of Genesis 1, “God saw all that He had made, and it was very good.”  That sounds to me like a kind of love for all of creation.  We are part of God’s creation.  When we glorify Him in our lives, God is also joyful.  The origin of true joy is God.  The joy of creatively solving technical problems is what good engineering is really about.

Engineering—it provides a way to do your best dreams.

Postscript:

*The slogan, “Engineering: because dreams need doing,” is proposed by the National Academy of Engineering.  Other proposed slogans are:

“A limitless imagination”

“An enterprising spirit”

“Free to explore”

“Ideas in action”

“Shape the future”

“Life takes engineering”

(Reference: Committee on Public Understanding of Engineering Messages, National Academy of Engineering, Changing the Conversation:Messages for Improving Public Understanding of Engineering, Published by the National Academies Press, 2008, available: http://www.nap.edu/catalog.php?record_id=12187)

Electric Car Project In Video

The Sioux City Journal has now posted a video about the electric car project.

Electric Car Project In The News

The Sioux City Journal covered the electric car project in a front-page story.  The text of the March 7 Journal story can be found here.

Electric Car Is On The Road

I don’t have time to elaborate, but the electric car is on the road. The last connection was made at about 4:30 PM. It was tested on blocks (front wheels off the ground) for a few minutes, and then at 4:45 it went on its first trip on full power. The students drove it around for a few minutes and then I took a turn. There is enough power to peel out. We have more testing to do before we dare try for its top speed. The project will be presented publicly tonight as part of the senior project evening. The presentations start at 7:30 PM, Wednesday, May6, 2009.

EV Project—The Engine is out

human powererd

(Somehow this post was accidentally deleted from the blog. It was originally posted in January.)
I’ve received a number of questions about the electrical vehicle project. Last semester the students did planning and preparation for this project. This semester, starting on Saturday, January 17, the students got started with the dirty part of the project, removing the gasoline engine. The Engine is now out. In a sense that was the easy part of the project because obviously it has to be done. On the other hand, the students learned a lot about front suspensions and other parts of the car from their experience disassembling the car.

The students decided to remove the engine and transmission as a unit since it will then be easier to mate the electric motor to the transmission on a workbench. This required them to disassemble of much of the front suspension (tie rods, control arms, etc.) in order to remove the axles and free the transmission of the wheels. Then they had a choice of lifting the engine/transmission assembly out the top or raising the car and lowering the engine/transmission out the bottom. The engine mounts face downward, making a bottom exit more obvious, but then we would have to arrange for a lift. Instead the students removed two of the engine mounts from both the engine and the body and then used a “cherry picker” (a type of crane) to lift the engine/transmission out the top.

In the photo above you can now see that the car is (temporarily) human powered!
I’ll continue to report on the progress of this project and other matters in future posts.

Some decisions now need to be made such as exactly which brand and type of battery to use. Your comments are welcome.

Senior Projects and More

I have not had time to blog this semester. That’s because I’ve been busy with a lot of good things, including a senior project to convert a 1998 Plymouth Neon to a plug-in electric car powered by batteries. You can read a good update on what is happening on other projects and in the engineering department in general via the ASME newsletter. Here’s a link to that issue of the newsletter. (Also, here is a link to the Dordt College ASME home page.)

Above is a photo of a 1998 Neon, the same color and style as the car we are converting. I’ll post more about that project next semester when the hands-on work gets underway. Right now some simulations are in progress to help us choose the best match of batteries, electric motor, and motor controller.

Burn Food—Eat Fuel!

Fire
This summer as I traveled I heard a number of opinions regarding the use of ethanol to fuel cars. Some are for it in order to reduce the consumption of fossil fuels. Some are for it to reduce carbon dioxide emissions. (Ethanol might burn with less pollution than gasoline.) Others are against it since there is a shortage of food in various parts of the world. The ethanol industry has driven the price of corn way up in the past year. In turn the price of other commodities like soybeans and rice have tracked the price of corn upwards. Thus all of us are paying more for food, which is not good for the poor people in the world, to understate the problem. Opponents of ethanol cry “Don’t burn our food!” (Maybe you think gasoline prices are the big problem now?)

Consider this however: In order to grow corn, soybeans, rice, or practically any plant, we generally use petroleum dependent methods. The fertilizer, herbicides, and pesticides we use are petroleum-based. The tractors and combines that plant, cultivate, and harvest the crops run on diesel or gasoline. After harvesting, the processing and distribution of most crops also rely heavily on gasoline or diesel.

Increases in farm crop yields correspond very nicely with the introduction of petroleum based farming starting in the 1930’s. Some people call this “high input farming.” For example, corn yields in Indiana were about 20 to 40 bushels per acre from the late 1800’s through 1930 and the trend was pretty flat. Farmers now consider 140 bushels per acre a poor yield. Here in Sioux County, Iowa, 160 bushels per acre is common. Considering that the availability of corn and soybeans depends heavily on “high input farming” (and on improved genetics, especially in the recent decades), to a degree we are eating our fuel. What farms do is convert petroleum products such as fertilizer, pesticides, and diesel, to food. Yes, sunlight contributes something important too, but modern farming practiced without the petroleum inputs would cause yields to plummet and probably at least half of our food supply would go away. Farming practices could be changed to improve the yields without high-input practices, but it would take take time to develop the new hybrids and farm practices needed to approach the yields now achieved. And given that in the future we might have good farm yields without high inputs of petroleum products, we can then engineer systems to more efficiently produce fuel from crops.

The high cost of petroleum products poses a complicated challenge. It is partly a technical challenge. It is also a political and even a spiritual challenge to be sure that there is enough to eat. An engineering degree is one good way to participate in helping to provide food and fuel. An engineering degree from Dordt College is better. Here you will study these issues in a Christian context.

CEEC: One, Two, Three, Four

Banner ad, July 2008 page 5

I’ll write about the advertisement above in a minute. But first, in my last post to this blog I mentioned that I recently attended two conferences and I reported on the ASEE Annual Conference in that blog entry. Next, I went to the Christian Engineering Educator’s Conference (CEEC), which I will review in this blog post.

There is so much to report, I can only pick and choose highlights. A recent advertisement in the July 2008 issue of “The Banner” (pictured above) inspired me to organize this review of CEEC along the lines of the parameters of curricular organization described in “The Educational Framework of Dordt College.” That’s a rather long document, but it describes in detail how Dordt faculty strive to teach their courses. That’s the basis of the advertisement.

1. Every inch of this world belongs to God
That’s our religious orientation.
Murat Tanyel and David Shaw of Geneva College gave an interesting paper on a proposed new textbook for freshman engineering courses. In the first chapter of this text they propose to discuss the idea of worldview, and in particular, the Christian perspective that the God of the Bible created everything and everything thus belongs to him. Although there is no debate among Christians that “God created it all,” we know there are different perspectives among Christians as to how creation happened. Theistic evolution and Creationism are two theories that come to mind. I’m not sure how far this new textbook might go to discuss how your view of creation influences your work, but clearly, if you believe that God created and is the owner of the universe, that will necessarily influence your engineering work. For example, how important is energy conservation? The only way to get at a question like that is to consider what you value and why you value it.

If you believe that God created and is the ultimate owner of the universe, then you can’t just say, “so what?” to important questions like, “what kind of work (or college major) should I choose?” To help us try to answer questions like that, Max Deffenbauh presented a paper on, “Career Choice in the Light of the Kingdom of God: An Engineer’s perspective.” He reviewed several ideas of what the “Kingdom of God” might be. One definition of the Kingdom of God, accepted by some people, is that it is, “God’s rule in the hearts and lives of people who accept God into their lives.” Another different definition of the Kingdom of God, what he labeled the “reformed perspective,” is that, “the Kingdom of God is God’s rule over the entire created order, now present in all dimensions but limited in degree. In this perspective people who submit to God’s rule become agents and stewards of that rule. . . .” Max then critiques these two definitions and proposes a third definition to resolve his critique: “the Kingdom [of God] is the final, perfect state of creation, initiated by a supernatural act of God and characterized by universal and perfect relationship with God as well as an end to sin, suffering and death.” He then explains that Christ’s life on earth is a call for Christians to live now in the light of the certainty of that future. These are issues that we discuss in our courses at Dordt College too.

2. The world is of a piece
That’s how He structured creation
In other words, Christians believe that the universe acts dependably and consistently through time and space, and that this is only a consequence of God’s faithfulness to us. (Hebrews 1:3) Every second of every day is possible only because of God’s upholding of the universe with all it’s orderliness and chaos. Because of His faithfulness, scientific theories are possible and engineering design can be done based on those theories. Dr. Emer of Calvin College gave a paper on various meanings of the story of the tower of Babel. Near the end of the paper she discussed goals of some technologies of providing self-sufficiency (e.g. the U.S. should develop a self-sufficient supply of energy). She drew interesting parallels to the story of the tower of Babel. There is danger in failure to recognize that all people depend on God every day, every second. She writes, “The Babel story emphasizes the need to recognize our own dependence on God, in all our activities, but also in our technology.”

In a paper on “Engineering as Mission,” William Jordan of Baylor University points out that the Bible writers lived prior to our modern scientific era, and therefore we cannot expect to find a direct biblical basis for doing engineering in the Bible. But there are examples in the bible of technical work being done. For example, Exodus 31:1-7. Dr. Jordan points out that even the skill to be an engineer is a gift from God. Sadly, due to sin, what we build will not last forever. (Ecclesiastes 2) Yet, what we do matters to the Lord of all creation (Ephesians 5:15-16, Colossians 3:23).

3. We develop it for good or ill
That’s our cultural challenge

What constitues engineering work that God would approve of has long been a topic of discussion among Christian engineering educators. Here at Dordt College we have used Dooyeweerd’s theory of modal aspects to help guide our thoughts on norms (standards) for engineering. In the book, Responsible Technology, published over twenty years ago (1986) the authors, (Monsma et al) restate some of the modal aspects in terms more easily related to typical engineering work. At the CEEC conference Steve VanderLeest of Calvin College gave a paper on “Wider and Deeper Norms for Technology Design.” In this paper Dr. VanderLeest proposes that there are yet more norms that need to be considered. This is a possibility that Dooyeweerd originally suggested regarding his list of fifteen modal aspects. Dr. VanderLeest proposes the virtue of humility as a previously missing norm. “Engineers should design technology with a certain modesty, knowing that (as created beings) we are finite, and thus cannot predict all the ways our technology might be used or abused.” Dr. Vanderleest also suggests that a direct Biblical foundation for the engineering norms proposed in the book Responsible Technology can be found, rather than the more complicated philosophical foundation offered by Dooyeweerd. He then visits in turn each of the six norms proposed in the book Responsible Technology and offers bible texts that support those norms. That these ideas from Responsible Technology are still in play after all these years is pleasing evidence that what we have been teaching here at Dordt all along is still considered important by others–still on the cutting edge.

4. We’re in it as Christ’s disciples
That’s our contemporary response
There were a number of papers at CEEC on what it means to be an engineer and a disciple of Christ. I’ve already mentioned the paper by Dr. Jordan, “Engineering as a Mission.” There were several other papers on the general topic of how engineering work can help spread the gospel, or assist other missionaries in spreading the gospel. This theme came up in maybe one-quarter of all the papers presented. Certainly that is an important reason to be an engineer. The more I think about problems such as the depletion and pollution of earth’s resources, the more clear it seems that there is little reason to care about what happens to the earth unless you have respect for it as belonging to God and entrusted to us. The Christian faith is unique in providing this perspective, although many Christians act sinfully anyway. Here at Dordt College we see engineering as one way of responding to God’s call to bring peace and shalom on earth.

Just as we can “worship our cars” when we wash and wax them and take excessive pride in them, our engineering can be good or bad worship in response to the call of our Lord to care for creation.

Summary
While attending this conference, I got to thinking, “what progress have we in the Christian engineering community made in engineering education?” Dordt College has been offering a bachelor’s degree in engineering since 1983, the year of our first B.S.E. graduating class. That’s a quarter century ago now. Surely we must have figured a few things out in that time span. The CEEC has been an important place where we work communally on figuring out how best to plan our curriculum. Indeed, over the last quarter century we have made the four points mentioned above fundamental to our engineering curriculum here at Dordt College. These make a Dordt College Engineering degree different from a state university degree in ways that Christians can appreciate.

P.S. If you are interested in reading entire papers, the complete Proceedings of the 2008 CEEC is available. And remember—you found out about it here at Dordt College!

Grand Challenges

PittsburghThis summer I attended two conferences. The first was the American Society for Engineering Education’s Annual Conference (ASEE Annual Conference), held in Pittsburgh (pictured) during the last full week of June. The second was the Christian Engineering Educators Conference (CEEC) held at Geneva College in the days following the ASEE Annual Conference. In this blog posting, I’ll report my impressions of the ASEE Annual Conference. In the next I’ll report on the CEEC.

The one overwhelming theme I heard at the ASEE Annual Conference is that engineering graduates must be prepared for new and grand challenges. Due to globalization, many jobs can be done anywhere in the world. Already manufacturing jobs are distributed according to world-wide labor costs and infrastructure availability. This will soon be happening with many more jobs, including engineering jobs. But location still matters. There is synergy between colleges, small enterprise businesses, and venture capital networks. These personal relationships that cannot be well-maintained over long distances will always be meaningful. It struck me that these local relationships exist on the basis of shared worldviews, although that concept was not voiced by any at the conference.

Another theme heard was that innovation is found at the boundaries. Making things smaller, lighter, faster, or conversely, bigger, stronger, more durable, etc. is what is difficult and thus valuable. Increasingly, these innovations tread over traditional boundaries. For example, it was once thought that, scientists discovered a new theory, enigneers applied the new theory, and business manufactured and marketed the resulting product. The present situation is much more complicated. In particular, engineers are becoming generalists, being involved in basic science (discovery) and in manufacturing techniques, etc.

A final theme was the number of references I heard to the National Academy of Engineering’s “Grand Challenges Committee.” On February 15, 2008 this committee made the following recommendations and called them, “Grand Challenges” for modern government.

  • Make Solar Energy Economical
  • Provide Energy from Fusion
  • Develop Carbon Sequestration
  • Manage the Nitrogen Cycle
  • Provide Access to Clean Water
  • Engineer Better Medicines
  • Advance Heath Informatics
  • Secure Cyberspace
  • Prevent Nuclear Terror
  • Restore and Improve Urban Infrastructure
  • Reverse Engineer the Brain
  • Enhance Virtual Reality
  • Advance Personalized Learning
  • Engineer the Tools of Scientific Discovery

These are what engineers are currently thinking about. I was impressed at the volume of the call for broadly educated engineers who understand science, economics, marketing, government, and more.

By the way, the slides of the main plenary of the conference, given by Dr. Charles M. Vest, President of the National Academy of Engineering, are available online. You will find the same themes that I just reported on in those slides.

In my next blog post, I’ll write about the CEEC. At the ASEE Annual Conference we heard about the challenges, but at the CEEC, we discussed answers for the “so what?” questions.

This is Exciting: Nobody Noticed Nothin’

Here’s an interesting phenomenon. Electricity provides essential services that we hardly think about. Electricity is just there for us to use. Nobody notices how reliable this is unless you ask, or unless there is a power failure—something that is quite rare here in the U.S.A. That’s a testament to excellent engineering and a stable social environment.This summer Dordt College is upgrading the electrical service in various places on campus. The panel shown at the top right will serve the computer center. Power arrives at this panel through a transformer that is connected to a main distribution line from the utility company. Thus the computer center will now have a more direct, hence more reliable source of main power. Previously the computer center was just another branch on a system that was at maximum capacity serving a number of buildings. Any serious problem in any of those buildings could have taken the whole branch down, including the computer center. (The computer center also has a battery backup, but reliable main power is also important.)On Wednesday, May 21 at 5:30 PM when the new panel (top right photo) was energized, and later when the old electrical supply was shut down and disconnected, probably nobody on campus noticed a thing, but a good thing had happened. Power On!
A new panel is energized
New Panels
New Panels power Network Equipment
Equipment Racks
Network equipment now powered from the new panels

We do our engineering in response to our desire to serve our Creator. Being made in his image, we strive for perfection and in this case, reliable electrical power and a reliable campus computer network. But most people just don’t notice. The lack of notice for the design and world-class quality of good services provided sometimes frustrates engineers and technicians. But in another sense, the lack of notice is a high complement. Still, we ought to notice and appreciate. In this case, thanks go to our Director of Physical Plant, Stan Oordt, for noticing the need for this upgrade and coordinating the planning for it, and to all the technicians who worked on the project.

I’ll make a corny analogy here. Just like we are used to electricity (and computer networks and telephone systems and running water and any other number of services), we are also used to the loving care of our Lord. So used to it that we don’t notice it. For example, read Hebrews 1:3,

“The Son is the radiance of God’s glory and the exact representation of his being, sustaining all things by his powerful word.”

Did you notice the word, “sustaining?” I have a tendency to read over phrases like this without quite catching on to the fullness of what is written. The literal meaning is that if the Lord stops “sustaining all things” then the whole world will cease to exist. We ought to take notice of all that our Lord provides!

Pull the plug on the TV network and the show ceases to exist. Pull the plug on the God of the Bible (if you could) and. . .