Author Archives: curiouscat

Sub $100 Tablet in 2011

I must admit I am skeptical. If it happens this looks very cool.

One Laptop Per Child Revamps Tablet Plans

On Thursday the foundation announced a partnership with chip maker Marvell to collaborate on a sleek and cheap touch-screen tablet for developing-world school children, a device it now plans to launch at the Consumer Electronics Show in January 2011 for less than $100. One Laptop Per Child (OLPC) says that’s close to two years ahead of its scheduled release for the so-called XO-3, the long-awaited upgrade to the non-profit’s XO, the so-called “hundred-dollar laptop” launched in 2007.
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The first XO, for instance, never reached its price target of $100; it now sells for $172. About 2 million of the devices have been sold–a significant achievement for a small nonprofit, but far less than its initial projections. And a flashy double touch-screen model known as the XO-2 was quietly scrapped last year when OLPC decided it couldn’t be made cheaply enough.
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As for Marvell, the partnership with OLPC could lend more credibility to its Moby tablet, which is designed for educational uses like electronic textbooks. OLPC is also building Marvell’s chips into an upgraded form of its XO, known as the XO 1.75, later this year. “When we first met Nicholas, we were very moved by his leadership,” says Dai Weili, Marvell’s chief operating office. “We’ve got the cost structure, feature capability and scalability to support his vision for many years to come.”

USA Science And Engineering Kavli Video Contest

Do you think Science is cool? Do you want to share your passion for science with others? Here is your chance to inspire thousands of people to be more curious, and to care about science & engineering the way you do: create a short video that explores the question “Why is Science Cool?”

We are seeking videos that are creative, surprising, and “contagious” in terms of spreading your enthusiasm about science to others. Videos might explore a scientific concept, show us the wonders of nature, give us a glimpse into the future, show us what scientific discovery has done for us in the past or will do for us in the future, introduce us to a great scientist or engineer, tell us why you think science is so cool or simply show us why we should care about science and/or engineering.

1st prize: $1,000 (to the school or science club); plus $500 electronics gift certificate for the student (or student group); plus a travel stipend to travel to Washington DC for the Expo!

In addition, the winning videos will be screened during the USA Science & Engineering Festival Expo on the National Mall in Washington DC on October 23 and 24, 2010 and at other key Festival events.

Find out how to submit a video.

Home Engineering: Bird Feeder That Automatically Takes Photos When Birds Feed

During a trip to the Smithsonian last week I found this great home engineering project. Kayty Himelstein and Amy Darr were frustrated: birds came to their bird feeder while they were away at school, so the girls never got to see them. They decided to build a bird feeder that automatically takes pictures of all the birds that came to the feeder. I believe, they used Lego Mindstorms as part of building it.

Top Kill Effort to Stop Oil Leak Initially Working

‘Top kill’ stops gulf oil leak for now, official says

Engineers have at least temporarily stopped the flow of oil and gas into the Gulf of Mexico from a gushing BP well, the federal government’s top oil-spill commander, U.S. Coast Guard Adm. Thad Allen, said Thursday morning.

The “top kill” effort, launched Wednesday afternoon by industry and government engineers, had pumped enough drilling fluid to block oil and gas spewing from the well, Allen said. The pressure from the well was very low, he said, but persisting. The top kill effort is not complete, officials caution.

Once engineers had reduced the well pressure to zero, they were to begin pumping cement into the hole to entomb the well. To help in that effort, he said, engineers also were pumping some debris into the blowout preventer at the top of the well.

Update: The top kill effort failed. BP is now trying to capture the oil as it spills into the water with a funnel like device.

Essentials of Genetics Website Reference

Scitable is a science library and personal learning tool on genetics developed by Nature. I must admit I am against the closed science stance Nature normally supports. But this is a good effort on their part at actually talking advantage of the internet to openly promote science. I imagine Nature will eventually more and more move toward supporting open science.

The website has a library of over 200 faculty-written, peer-reviewed articles on core concepts in genetics, plus a video-based online primer called Essentials of Genetics, glossaries, spotlights on key issues, and lots more high quality faculty and student resources.

Scitable is a great place to research and learn more about genetics topics such as diseases, evolution, genetics and society.

Google Prediction API

This looks very cool.

The Prediction API enables access to Google’s machine learning algorithms to analyze your historic data and predict likely future outcomes. Upload your data to Google Storage for Developers, then use the Prediction API to make real-time decisions in your applications. The Prediction API implements supervised learning algorithms as a RESTful web service to let you leverage patterns in your data, providing more relevant information to your users. Run your predictions on Google’s infrastructure and scale effortlessly as your data grows in size and complexity.

Accessible from many platforms: Google App Engine, Apps Script (Google Spreadsheets), web & desktop apps, and command line.

The Prediction API supports CSV formatted training data, up to 100M in size. Numeric or unstructured text can be sent as input features, and discrete categories (up to a few hundred different ones) can be provided as output labels.

Uses:
Language identification
Customer sentiment analysis
Product recommendations & upsell opportunities
Diagnostics
Document and email classification
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Why Does the Moon Appear Larger on the Horizon?

Why does the Moon look so huge on the horizon?

If you’ve ever seen the Moon rising over the horizon, looking so fat and looming that you felt like you could fall right into it, then you’ve been a victim of the famous Moon Illusion. And it is an illusion, a pervasive and persuasive one.
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When the Moon is on the horizon, your brain thinks it’s far away, much farther than when it’s overhead. So the Ponzo Illusion kicks in: your brain sees the Moon as being huge, and it looks like you could fall into it. The Illusion works for the Sun, too. In fact, years ago I saw Orion rising over a parking lot, and it looked like it was spread across half the sky. It’s an incredibly powerful illusion.

Oddly enough, when it’s on the horizon, the Moon actually is farther away than when it’s overhead. Not by much, really, just a few thousand kilometers (compared to the Moon’s overall distance of about 400,000 kilometers).
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So the Moon Illusion is just that. It’s not the air acting like a lens, or foreground objects making it look big by comparison. It’s just the way we see the shape of the sky together with the well-known Ponzo Illusion.
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Science taking something we perceive as real, breaking it down, and showing it to be an interesting but decidedly unreal illusion? Well, that’s what science does! It helps us not only understand the world better, but it also makes the world cooler, too.

Friday Fun: Mother Bear Rescues Cub From a Tree

Isn’t it great how the sibling seems to try and help the mother.

Iron Man 2 Via 3-D Printing

Ever since I first heard of 3-D printing I have though it was very cool. Well first I thought it was science fiction, not real, but a cool idea. Then when I found out it was real I thought it was very cool. Not only is it cool, it is practical. Iron Man 2’s Secret Sauce: 3-D Printing

Maybe the most cutting-edge facet of Iron Man 2’s production was the real-life fabrication of the suits. Using 3-D printers, the film’s production company, Legacy Effects, was able to have artists draw an art concept–and then physically make that concept in just four hours.
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In addition to speed, the benefit is that you can print out costumes custom fitted to the actors, down to the millimeter. And with custom-fitted suits, Robert Downey, Jr. and Mickey Rourke can put a lot more action into their fight scenes, without the wonky effect of layering on too much CGI. (Downey complained that the original Iron Man suits, which were made more traditionally, were too clunky to act in, and extremely uncomfortable.)

Teaching Through Tinkering

I wrote about the Tinkering School, Engineering camp previously. I am a strong believer in the value of helping kids (even adult kids – the few that haven’t resigned themselves to limited capacity to wonder since they now are grown up and not suppose to waste their time dreaming) explore their ideas and assisting them in making those ideas into reality. I think this is the best way to learn, not learning to pass a test, but learning to gain knowledge and accomplish things. Here is a nice 15 minute talk by the founder of the Tinkering School, Gever Tulley: “Turning Curriculum Design On Its Head: Engage First Then Look for Learning Within”

The format of the tinkering school is week long sessions where the kids stay overnight.

Some quotes: “we would use real tools and real materials and we would build real things, not model building, [but instead] actual building.” “create a meaningful experience and learning will follow”

Gever Tulley recently published: Fifty Dangerous Things (You Should Let Your Children Do).