Category Archives: Students

Items for students and others, interested in learning about science and engineering and the application of science in our lives. We post many of the general interest items here.

Singapore Students Engineer New Products

Students design products to help environment and disabled people

“Now it’s in the eighth year and we’ve had 5,000 students on the scheme. This year the quality is quite good, I’m quite happy. Some amazing ideas such as the fish scaling device and the shuttlecock launcher,” said Mr Butler. There is no limit to innovation and creativity.

An automated shuttlecock launcher, which can adjust the launching angle of shuttlecocks, came in tops in terms of design. Currently there are no mechanical shuttlecock launchers in the market. But this launcher can not only be produced at a low cost, but also help beginners execute different strokes. Another practical design is a retractable bamboo system that improves safety when drying laundry. It also comes with a plastic cover to keep out the rain. The above are just a few examples of the 52 innovations that may just find their way into our homes and lives, once these young technopreneurs find the right investors.

I like the increasing efforts to engage university students in actually creating useful innovations. It isn’t easy to actually create winning solutions but the efforts to do so I think teach many valuable lessons. Such efforts support a change to our education system to engaging students in actual engineering projects not just problem sets (for example: Educating the Engineer of 2020: NAE Report – Olin Engineering Education Experiment – Changes at MIT for Engineering Education – Educating Engineering Geeks).

Self Healing Plastic

Plastic That Heals Itself

The first self-healing material was reported by the UIUC [University of Illinois at Urbana-Champaign] researchers six years ago, and other research groups have created different versions of such materials since then, including polymers that mend themselves repeatedly when subject to heat or pressure. But this is the first time anyone has made a material that can repair itself multiple times without any external intervention, says Nancy Sottos, materials-science and engineering professor at UIUC and one of the researchers who led the work.
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the researchers bend it and crack the polymer coating. The crack spreads down through the coating and reaches the underlying microchannel. This prompts the healing agent to “whip through the channels and into the crack,” Sottos says. There, it comes into contact with the catalyst and, in about 10 hours, becomes a polymer and fills in the crack. The system does not need any external pressure to push the healing agent into the crack. Instead, the liquid moves through the narrow channels just as water moves up a straw.

Order Your CatCam

You can now order your CatCam (or components to help put together your own) from Juergen Perthold the creator of the wonderful CatCam as we posted last week: Awesome CatCam. Very cool.

Educating Engineering Geeks

Yossi Sheffi, Professor of Civil and Environmental Engineering and Engineering Systems, Director, MIT Center for Transportation and Logistics, presents his thoughts on engineering education changes at MIT in this webcast.

So MIT must shift gears, and embrace two basic missions: continuing to produce world-class experts (geeks) – practicing engineers who design complicated systems – and generating world-class leaders (chiefs), who will deploy their technological expertise in the real-world. “My hypothesis is that the great leaders of the next century will have to have a technological background, because we’re going toward a technologically innovative society.” These leaders will be problem definers as much as problem solvers, and, says Sheffi, “either we or China will educate them.”

Sheffi suggests a School of Engineering-wide undergraduate program, where all the fundamentals courses are rethought and taught differently. This means sacrificing problem sets for case studies, and “learning how a subject fits into the grand scheme of things.” MIT should integrate humanities with engineering subjects, ensuring undergraduates understand business, ethics, legal language, environmental concerns, organization and process design. There should also be a formal leadership workshop, required time in a foreign culture and along the lines of the European Union, a five-year educational model. If MIT builds it, others will follow, assures Sheffi.

via: Geeks and Chiefs: Engineering Education at MIT

Life-patents

New Life, New Patent by Carl Zimmer:

ETC is right in suggesting Venter might become “Microbesoft”–controlling operating system for anyone who wants to build an organism from scratch. Other researchers, such as Keasling, are promoting a different way of doing synthetic biology–what they call open source biology. Scientists and their students are amassing an open inventory of parts that anyone can use to design organisms of their own. And it’s open source biology, these researchers argue, that will provide the best protection against any evil uses of synthetic biology. Instead of being hidden behind patents, the information about these parts would be available to everyone, and collectively solutions could be found. As this debate starts to unfold, I think open source biology will keep it from becoming nothing but deja vu.

I support keeping science open. Patents are a tax on society that the government grants inventors for their efforts, in order to benefit society, by encouraging the inventors to innovate. The end is benefiting society. The means is granting a right of the patent holder (a right they do not have without patent law) that will encourage them to make the effort to innovate. I support the proper use of patents, but we have perverted the patent process into something that harms society. The system needs to be fixed. And the whole area of patents on life I find very questionable.

Antibacterial Products May Do More Harm Than Good

photo of a dandelion

Strange but True: Antibacterial Products May Do More Harm Than Good by Coco Ballantyne:

Unlike these traditional cleaners, antibacterial products leave surface residues, creating conditions that may foster the development of resistant bacteria, Levy notes. For example, after spraying and wiping an antibacterial cleaner over a kitchen counter, active chemicals linger behind and continue to kill bacteria, but not necessarily all of them.

When a bacterial population is placed under a stressor—such as an antibacterial chemical—a small subpopulation armed with special defense mechanisms can develop. These lineages survive and reproduce as their weaker relatives perish. “What doesn’t kill you makes you stronger” is the governing maxim here, as antibacterial chemicals select for bacteria that endure their presence.

Pretty basic understanding of evolution makes the breeding of very resilient bacteria a fairly obvious result. One thing that might not be as obvious until it is mentioned is that by killing off the “weaker” bacteria you also provide a niche for the more resilient bacteria to multiply and fill the gap left by the bacteria that were not a problem that were killed off. Imagine if, instead of digging out the 3 dandelions you wanted to remove from your yard, you removed all plants from your yard (including those 3 dandelions). I would bet most often that would result in more dandelions not fewer as the dandelions were able to fill in the void of plants in the yard.

In general, however, good, long-term hygiene means using regular soaps rather than new, antibacterial ones, experts say. “The main way to keep from getting sick,” Gustafson says, “is to wash your hands three times a day and don’t touch mucous membranes.”

National Underwater Robotics Challenge

See the National Underwater Robotics Challenge web site for information on the event in Arizona June 8th through 10th. They offer a remote underwater vehicle kit for $250.

The ROV-IN-A-BOX is intended to help get teams involved that are new to underwater robotics. Buy purchasing this kit, it helps put an inexperienced team, or a team with young students like elementary school kids, into a comfort zone to allow them to take on the Underwater Challenge. It reduces the stress, time and resources needed to acquire all the parts to complete an ROV for the competition. The kit can also be used by a more mature team as a starting point for the ROV they may want to build.

There will be a live video stream June 9 at 8pm MST and will continue to until about 2am MST June 10. The video will come from both the ROV and in the pool with event cameras in and around the submarine. Once the video has been processed and mixed poolside by Arizona State University’s Applied Learning Technologies Institute, it will then be channeled to Chandler High School’s television studio, where it will be broadcast to a view gallery and simultaneously sent to a server at ASU where it will be webcast to the world.

Video of the ROV in a box:
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Inventor TV Shows

I caught some of Everyday Edisons the other day, which looked promising (though I would prefer less fluff and more focus on the process of designing and marketing the products. American Inventor season two premiers tonight on ABC. I saw some of American Inventor last year and it was interesting (though it didn’t grab me enough to get me to watch often). Still compared to the usual TV fair they look interesting and do actually provide some insight into turning ideas into products.

One minor point I find funny and a bit lame. On the Everyday Edisons web site they show a photo with 10 people and then have an image underneath it with text (yes image text like a myspace page – obviously whoever is responsible for this website doesn’t follow the advice of the web usability experts – this image text is just one example, another is that every time you go the home page it starts playing a video with audio – it is annoying to have web sites with so little idea of good web design practices) that states something like “I thought there were 14 inventors, I only see seven. What’s up?” The image actually shows 10 people – not 7, what is up with someone that only sees 7?

Related: Engineering Education Reality TV (which I also note web usability failings) – Help Choose the New PBS Science Program – Japan Project X: Innovators Documentaries
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Researchers Create Molecule-Sized Test Tubes

The test tubes are actually bubble-like nanocontainers that are porous to small molecules. Researchers can easily feed needed ions and other chemicals into the ultra-tiny reaction chambers.

Many scientists say that more can be learned about the dynamics of chemical reactions that power biological processes by studying the behavior of individual molecules rather than observing the collective behavior of many molecules, as scientists do now. But techniques for single-molecule studies are limited and often highly specialized. The new nanocontainers, however, will make single-molecule techniques both more accessible and more powerful
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The researchers say their technique can be easily applied in other laboratories, to enable scientists to study individual molecular reactions free of the complications of analyzing reactions in bulk solution. The new approach also improves on other methods used for observing the behavior of single molecules. One of the most common methods required that single molecules be tethered to a surface. With nanocontainers, however, the vesicles themselves are attached to a surface, meaning the molecules inside do not have to be. This simplifies analysis, because the effects of the surface on the reaction do not have to be taken into account, the researchers said.

To bad I can’t find the article online: I. Cisse, B. Okumus, C. Joo, T. Ha, “Fueling protein-DNA interactions inside porous nanocontainers”, PNAS. The Howard Hughes Medical Institute is doing great things: $600 Million for Basic Biomedical Research – $1 Million Each for 20 Science Educators

S&P 500 CEOs – Again Engineering Graduates Lead

2006 Data from Spencer Stuart on S&P 500 CEO (pdf document) shows once again more have bachelors degrees in engineering than any other field.

Field		% of CEOs
Engineering		23%
Economics		13%
Business Administration		12%
Liberal Arts		8%
Accounting		8%
No degree or no data		3%

This data only shows the data for 65% of CEOs, I would like to see the rest of the data but it is not provide in this report. 41% of S&P CEOs have MBAs. 27% have other advanced degrees.