Category Archives: Education

Meteorite Lands in New Jersey Bathroom

What Landed in New Jersey? It Came From Outer Space:

The object that tore through the roof of a house in the New Jersey suburbs this week was an iron meteorite, perhaps billions of years old and maybe ripped from the belly of an asteroid, experts who examined it said yesterday.
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The meteorite now belongs to the family whose house it ended up in, said Lt. Robert Brightman of the Freehold Township Police Department, adding that they had asked not to be identified. The family has not yet given permission for physical testing of the meteorite, but from looking at it, Dr. Delaney and other experts were able to tell that the object it had been part of — perhaps an asteroid — cooled relatively fast.

It is magnetic, and reasonably dense, they determined. The leading edge — the one that faced forward as it traveled through the earth’s atmosphere — was much smoother, while the so-called trailing edge seemed to have caught pieces of molten metal. In fact, Mr. Delaney said, it seemed very similar to another meteorite fragment, the Ahnighito, now on display at the American Museum of Natural History.

The meteorite was about the size of a golf ball.

Internet Underwater Fiber

Underwater Peril:

Laying undersea cable systems is a monumental process. After surveying landing sites, studying seabed geology, and assessing risks, engineers plot a route. A company like Corning delivers strands of fiber-optic glass to a manufacturer say, Tyco Telecommunications which encases the fiber in metal. Then gigantic spools of cable, repeaters that transmit signals long distances, and other gear are loaded on cable-laying vessels. For months, the ships lower the cables thousands of feet to the seabed. In congested spots, engineers use robots to dig trenches for the cable that protect it from wayward anchors and fishing nets. Then crews haul the cable ends above water and connect them to land-based stations.
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Engineering experts say the Taiwan incident should persuade all operators to do more to prepare for quakes. It’s not good enough if you have a variety of routes but then bring them into shore at the same location–especially if, as in the Taiwan case, they’re crossing a fault line right there.
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But there’s another lesson: The global telecom network really is quite resilient, even in the face of such a crippling blow. Within 12 hours of the undersea rock slides, at least partial service had been restored to most of the affected networks. This was done by rerouting traffic via land and sea through Europe to the U.S.

2007 Draper Prize to Berners-Lee

Timothy J. Berners-Lee will receive the prestigious Charles Stark Draper Prize for Engineering from the US National Academy of Engineering (NAE) for developing the World Wide Web.

Also, Yuan-Cheng “Bert” Fung will receive the Fritz J. and Dolores H. Russ Prize — a $500,000 biennial award (since 1999) recognizing engineering achievement that significantly improves the human condition — “for the characterization and modeling of human tissue mechanics and function leading to prevention and mitigation of trauma.”

Timothy J. Berners-Lee imaginatively combined ideas to create the World Wide Web, an extraordinary innovation that is rapidly transforming the way people store, access, and share information around the globe. Despite its short existence, the Web has contributed greatly to intellectual development and plays an important role in health care, environmental protection, commerce, banking, education, crime prevention, and the global dissemination of information.
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MIT for Free

How to go to M.I.T. for free by Gregory M. Lamb:

By the end of this year, the contents of all 1,800 courses taught at one of the world’s most prestigious universities will be available online to anyone in the world, anywhere in the world. Learners won’t have to register for the classes, and everyone is accepted. The cost? It’s all free of charge.

The OpenCourseWare movement, begun at the Massachusetts Institute of Technology (MIT) in 2002 and now spread to some 120 other universities worldwide, aims to disperse knowledge far beyond the ivy-clad walls of elite campuses to anyone who has an Internet connection and a desire to learn.
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MIT’s OCW website features even more glowing feedback from learners. “[B]ecause of money, many good students with great talent and [who are] diligent do not have the chance to learn the newest knowledge and understanding of the universe,” says Chen Zhiying, a student in the People’s Republic of China. “But now, due to the OCW, the knowledge will spread to more and more people, and it will benefit the whole [world of] human-beings.”

Sarah, aged 3, Learns About Soap

A Dialogue with Sarah, aged 3: in which it is shown that if your dad is a chemistry professor, asking “why” can be dangerous [the broken link was removed] by Stephen McNeil.

DAD: Why does the soap grab the dirt?
SARAH: Yes.
DAD: Because soap is a surfactant.
SARAH: Why?
DAD: Why is soap a surfactant?
SARAH: Yes.
DAD: That is an EXCELLENT question. Soap is a surfactant because it forms water-soluble micelles that trap the otherwise insoluble dirt and oil particles.

Great. I remember such discussions with Dad (Chemical Engineering professor). The only danger I saw was him getting tied of -why? (when I was older). And sometimes giving me answers the teacher didn’t like (a way of doing math problems that wasn’t the way my teacher was teaching).

Boiling Water in Space

Bizarre Boiling, NASA:

The next time you’re watching a pot of water boil, perhaps for coffee or a cup of soup, pause for a moment and consider: what would this look like in space? Would the turbulent bubbles rise or fall? And how big would they be? Would the liquid stay in the pan at all?

Until a few years ago, nobody knew. Indeed, physicists have trouble understanding the complex behavior of boiling fluids here on Earth. Perhaps boiling in space would prove even more baffling…. It’s an important question because boiling happens not only in coffee pots, but also in power plants and spacecraft cooling systems. Engineers need to know how boiling works.

I had trouble seeing what was happening in the first video. Try this video first.

Because a smaller volume of water is being heated, it comes to a boil much more quickly. As bubbles of vapor form, though, they don’t shoot to the surface — they coalesce into a giant bubble that wobbles around within the liquid.

Engineers Week Ideas

Ideas for engineers to use during engineering week, from the Engineering Education Service Center (on the USA engineering week):

Engineers week is a unique time that takes place every February during Presidents week. 40,000 engineers go into classrooms to promote the profession and give students a better understanding of engineering. This is our chance to show the world that engineering is an exciting career and that engineers really can do anything!

If you know of other similar activities in other countries please add a comment.

Lean Enterprise Value Student Publication Prize

I received an email on the Lean Enterprise Value Student Publication Prize, I don’t see the announcement online, so I’ll include the information I was sent below. For more information on lean thinking see our Curious Cat Management Improvement Blog: lean manufacturing posts.

Lean Enterprise Value Foundation, Inc. Student Publication Prize Call for Submissions

The Prize will consist of $500 and an engraved memento to be presented at the Lean Aerospace Initiative Plenary Conference in Cambridge, Maryland on April 17–19, 2007

Eligibility
Author: Any student at a US university. There may be co-authors and co-researchers but the entrant should be the principal author.
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Personal Water Wheel Power

Personal Water Wheel

Scots inventor cracks centuries-old puzzle

Ian Gilmartin, 60, has invented a mini water wheel capable of supplying enough electricity to power a house – for free. The contraption is designed to be used in small rivers or streams – ideal for potentially thousands of homes across Britain. It is the first off-the-shelf water-wheel system that can generate a good supply of electricity from as little as an eight-inch water fall.
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The water wheel produces one to two kilowatts of power and generates at least 24kw hours of sustainable green energy in a day – just under the average household’s daily consumption of about 28kw hours. It will cost some Â£2,000 to fully install – and pay for itself inside two years.
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A “high head”, such as a traditional water wheel, is large, expensive and needs civil engineering. But with low heads of under 18 inches, no-one had invented a method of successfully recovering the energy generated – until now. A conventional water wheel allows the water to escape prematurely as the wheel rotates, but the Beck Mickle hydro generator contains the water for the full drop of the device, converting about 70 per cent of the energy into electricity.

Related: Cheap energy hope from waterwheel (photo from BBC) “Mr Gilmartin is an electrician by trade, but does not own a TV and has never lived in a house with electricity.” – Electricity Savings – Engineers Save Energy – Wind Power – Safe Water Through Play

Scientists Knock-out Prion Gene in Cows

Scientists Announce Mad Cow Breakthrough by Rick Weiss

Scientists said yesterday that they have used genetic engineering techniques to produce the first cattle that may be biologically incapable of getting mad cow disease. The animals, which lack a gene that is crucial to the disease’s progression, were not designed for use as food. They were created so that human pharmaceuticals can be made in their blood without the danger that those products might get contaminated with the infectious agent that causes mad cow.

That agent, a protein known as a prion (pronounced PREE-on), can cause a fatal human ailment, variant Creutzfeldt-Jakob disease, if it gets into the body. More generally, scientists said, the animals will facilitate studies of prions, which are among the strangest of all known infectious agents because they do not contain any genetic material.
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Prions remain poorly understood, but experiments suggest that it takes just one bad one to ruin a brain. That’s because a badly folded prion in the brain can strong-arm normal, nearby prions, turning good prions bad.