Shields Up?

One of the thorniest questions relating to interplanetary travel, or even long-term residence on the moon, is danger to astronauts from radiation. I’ve often wondered why magnetic fields could not be used to protect astronauts in the same way that Earth’s magnetic field protects us. Well, maybe the answer is—they can. A group of British scientists is working on a plan to create a magnetic field 20-30 km around a spacecraft or moonbase, and then fill that space with ionized gas (plasma). The plasma would slow incoming particles and reduce the hazard.

We’re getting awfully close to Star Trek technology here.

Read the full story at Technovelgy.com.

Electric Airplane (How Long Is Your Extension Cord?)

posted in: Flying, technology 0

Although I have a private pilot’s license, it’s been some years since I’ve had enough coinola in the bank to do anything with it. (The most I ever managed to do was rent a plane once in a while to go for a local pleasure flight. Or, more frequently, rent a plane to go up and do some practice touch-and-go landings. Still, I always loved it.)

I think all the time about taking it up again sometime. But one thing that’s always bothered me is the additional air pollution you create when you go up in a small plane. It’s not like they’re awful—but they don’t have catalytic converters to clean up the exhaust, and for that matter, most of them burn leaded fuel. (Necessary to keep the cylinders cool.)

So I was cheered today when I got my email newsletter from AOPA (Aircraft Owners and Pilots Association), which had a news item titled: “Environmentally Friendly Aircraft To Take Flight This Year.” It seems Boeing is working on a fuel-cell powered airplane! Here’s an excerpt:

An emission-free experimental aircraft, powered only by a fuel cell and lightweight lithium-ion batteries, could take flight this year. Boeing researchers and industry partners in Europe announced the Fuel Cell Demonstrator Airplane project on March 27. The aircraft is currently undergoing systems integration testing to prepare for ground and flight testing. The aircraft uses a proton exchange membrane fuel cell, which converts hydrogen directly into electricity and heat without combustion, and lithium-ion batters to power an electric motor with a conventional propeller. The fuel cell will provide all of the cruise-flight power, while the batteries will power takeoff and climb phases of flight. Francisco Escarti, managing director of Boeing Research and Technology–Europe, said that the fuel cell and batteries likely won’t power a commercial passenger airliner, but that “demonstrations like this help pave the way for potentially using this technology in small manned and unmanned air vehicles.”

Now, that’s the airplane I want to win in a sweepstakes!

Strange Visitations

As I’ve mentioned before, I like to check the Site Meter logs to see how many people have visited my blog (and my other web sites), what countries they’re from, and so on. One of the things I can see is what the referring sites are—that is, where someone clicked a link to get here. The vast majority of links to my blog—or at least those which are identifiable—are either from my regular web site or my writing course, or from search engines. It’s the search engine clicks that are interesting, because they show me what kinds of queries land people on my blog.

Lately, hands-down, the winner has been Daisy the Goose. I cannot believe how many people have searched for the Daisy the Flying Goose story and wound up at my blog. There has, in fact, been an upswing in visitors the last couple of weeks, and at least part of that is attributable to the goose. Another perennial search favorite is information about snakes, such as someone recently looking for “cool names for snakes.” Google searches for images of “girls wrestling” are pretty common. I wondered at first if they were people looking for mud wrestling or whatever, but then realized they were coming from search pages that actually showed the images of high school wrestling, so I’m guessing it really is mostly people genuinely interested in girls participating in the sport of folk wrestling. More than a few people come looking for articles on intelligent design or “will people steal my story ideas.”

Hardly anybody ever clicks through on the ads, by the way. After two years, I finally racked up enough earnings to get my first check for a hundred big ones. (I mistook the envelope the check was in for junk mail and nearly put it through the shredder.)

The blogosphere’s a funny place. But you already knew that, right?

A Low Flyover of Mars

This link to a pair of NASA videos comes courtesy of my friend Victoria (not to be confused with the Victoria Crater on Mars dramatically displayed in the first video). Want to make a low flying pass over some of the terrain that the Opportunity and Spirit rovers have explored? Thanks to some incredible photography from the Mars Reconnaissance Orbiter, you can! This appears on the New Scientist web site, but if it’s not on a lot of others, I’m sure it will be soon.

Jet-Man, and Daisy the Goose

Two interesting videos crossed my radar today, both involving flying. One is about a man who has found a way to become a jet bird, and the other is a goose who thinks she’s human.

Jet-Man is Yves Rossy, from Switzerland. When I first saw the email from my friend Keith, I thought it was going to be someone wearing the latest version of the Buck Rogers jet pack that’s good for hovering around a parking lot but not too much else. But no—this is a guy who straps himself into a set of jet-powered wings and pushes himself out of an airplane like a skydiver…and then spends five minutes zooming and soaring like Rodan, or maybe the Jetsons. Watch the video—it’s pretty amazing. He has a web site, but it’s all in French, so I wasn’t able to read any of the background info. (You can watch the video there, too, if you have trouble at the other link.)

And then…there’s Daisy, the Canada goose. Daisy imprinted on a guy named Dan Steffan, and she likes to go flying with him—he in his speedboat, and she flying alongside. When she gets tired of flying, she perches next to his beagle Sam and enjoys the ride. (That dog sure reminds me of our dear departed beagle Sam!)

Edit Oct 2013: Something made me revisit this story, and I learned to my sadness that both Daisy and Dan Steffan are gone from this world. You can view the whole story here.

Strange Golf Toy, and the God Particle

posted in: quirky, science, technology 0

I don’t play golf. But I got a phone call yesterday from a software developer I once worked with, a voice-recognition wiz who created a very compact little program called Voice Lookup for Pocket PCs. (When I say I worked with him, I mean that I wrote the user’s guide for him, not that I had anything to do with developing the software.) He’s been working on this software for years, making about as much money as the average beginning fiction writer (of for that matter, the average veteran fiction writer, which is to say, not much). But a new product is about to appear, featuring his “talk to the chip” software—a golf cap that contains embedded GPS equipment, microphone, speakers, and voice-recognition capability.

A golf cap with GPS, you say? Yes, and its purpose isn’t to keep you from getting lost on the links; it’s to put a little advisor in your ear, which can tell you exactly how far you are from the hole, or from the water hazard! I’m not making this up! You can read about it at http://www.skykapllc.com. (Click Products to get the low-down.)

Meanwhile, in other news, scientists may at last be on the trail of the “God particle”—also known as the Higgs boson. You can read about that at the New Scientist.

Errant Astronauts, Friendly Fire, and Other Civics Lessons

Today’s news was awash in stories that made me reflect on the vagaries of human nature, especially in the crazy world we live in. I’m going to assume you’re familiar with the stories, but if you’re not, just click the links for more information. The tales run from bizarre to tragic to uplifting, with a side trip to controversy.

The first one that hit me today was the story of the NASA astronaut, Lisa Nowak, accused of driving from Texas to Florida with the intention of murdering a romantic rival. I don’t follow astronaut personalities the way I did when there were just seven of them, but I remembered Lisa Nowak from the coverage of the shuttle mission last summer: she was bright, competent, strikingly pretty, and by all accounts a great role model for girls and young women. What in the world happened, that she could do such a bizarre thing? Does she suffer from a psychological disorder that was hidden until now? Did she simply crack from the stress of being simultaneously an astronaut and a mother? I feel a mixture of sympathy, pity, puzzlement, and a bit of fear. Could any one of us crack this way? Does this dark side lurk in all of us? It makes me shiver a little, and vow to get more sleep.

Next came the furor over released cockpit video from two U.S. A-10 pilots who, in the early days of the Iraq war, mistakenly strafed friendly trucks, killing a British soldier. The incident was declared an innocent mistake and the pilots cleared of wrongdoing, back in 2003, but only recently was the cockpit video (containing the radio conversations) provided to the British government and subsequently leaked to the public. I watched the video—it’s about 15 minutes long—and the first thing I noticed was how businesslike and calm it all seemed until the mistake was discovered, not at all the image of combat one gets from the movies. The guys saw orange panels on the roofs of the trucks—the sign of friendly forces—but because they were assured by their ground controller that no friendly forces were in the area, they concluded that they were looking at orange rocket launchers. And they opened fire. In hindsight, it’s pretty easy to conclude that they made a dumb call—especially given how hard it is to see things on the ground from a cockpit. But it would also be a cheap shot, since I wasn’t there.

What I really noticed was how different I felt about it after watching the video, versus reading the stories. The news reports said the pilots cursed, wept, and were distraught after learning that they’d just shot a friendly. But the selected quotes also made it sound as if they were mainly concerned about how much trouble they were in. Watch the video, and you get a different picture. They were beside themselves. Yes, they obviously knew they were in trouble, but they were also kicking themselves around the block for the error. The news reports one pilot saying to the other, Is your tape still running?—after which the recording stopped. What the pilot actually said was, My tape ran out; is yours still running?—and this when they were well on their way back to base. What comes across in the news story is, Can we cover our asses? Watch it, and you get something quite different. So…I guess this story made me think less about the possible culpability of the pilots than it did about just how easily the truth gets distorted. And how we have to form opinions and make decisions all the time, based on this kind of incomplete—or misleading—information.

On the flip side of the war, you have the court martial of Lt. Ehren Watada, who refused to go with his unit to Iraq, because he believed the war was illegal and immoral. From the San Jose Mercury News:

“…He took to heart a superior’s advice to make exhaustive preparations for missions. What he found — in reading international law, the history of war and the history of Iraq, and articles by governmental and independent agencies, journalists and scholars about the situation in Iraq — changed his mind.

As he told the Army Times, he was in turmoil. “I found out this administration had gone to great lengths to deceive Congress and the people of this country to go to this war.”

With complete respect for those who are in Iraq right now, including one of our wrestling coaches, my hat’s off to Lt. Watada for being willing to take a stand on principle, knowing he could be court-martialed, but believing that these things had to be said.

Of course, I’m basing that opinion on news reports. See earlier paragraph.

Finally, I read of actor Richard Dreyfuss’s current passion—not acting in films, but teaching civic responsibility in schools. Among other things, he’s working with a school system in Massachusetts to help create a civics curriculum for elementary schools, hoping to find ways to make this exciting for kids. You go.

Funny, I was not always a huge fan of Dreyfuss in the movies, especially his earlier ones—but I thought he was great in the quietly forgotten TV series, The Education of Max Bickford.

Which, coincidentally, is where I first encountered the actress Katee Sackhoff. Starbuck.

Interesting Science News and Other Cool Stuff

posted in: science, technology 0

Meanwhile, I’ve been collecting stories and links, and I’ll share a few of the ones I’ve managed to not lose.

Allergy vaccine: If, like me, you’re subject to allergies, have hope: New Scientist reports major steps forward in the development of vaccines for allergies. One group has developed vaccines for dust mites, pollen, cat hair, and bee venom and tested them on cells from susceptible humans. Another study is in clinical trials. (Unfortunately for those of us in the U.S., these studies are in Europe; no word on how long it will take for treatments approved in Europe—assuming they reach that point—to make it to the U.S. But I’m ready to line up to be part of the trials.)

String theory: Can you explain it clearly in two minutes or less, on video? Discover Magazine has a contest underway, to see who can best convey the essence of string theory to a reasonably intelligent nonscientist. String theorist and popularizer Brian Greene will be the judge. Hurry—you’ve only got until March 16—two minutes!

Desert songs: Have you ever been a beach that made interesting squeaking or scrunching sounds as you walked on it? We have one in our area called Singing Beach, in Manchester-by-the-Sea, north of Boston. Well, there’s a guy named Stéphane Douady who has made it his mission to record the sounds of sand dunes. And it’s pretty cool. Put on your headphones or play these through a good stereo system. (I first tried to listen on my tinny laptop speakers, and I could barely hear anything. So don’t do that.)

Finally, 181 Things To Do On The Moon: you know, in case you find yourself there one day with nothing else on your agenda. NASA has released a list of 181 things worth doing on the moon. This page has highlights. (The full list is in a hard-to-read pdf file. Ah, we can go to the moon, but can we put the reasons into an easy-to-read format that won’t crash our browsers or ask for the 2-millionth update to Adobe Reader? Nah….)

Small Is Beautiful—Or Is It?

posted in: science, technology 0

Recent issues of Discover Magazine (Feb. 06*) and the New Yorker (I think it was last week’s, but now I can’t find it to check) both had articles about Amory Lovins, the wizard of small technology, or perhaps more accurately, appropriate use of technology in terms of energy efficiency and benign effect on the environment. His Rocky Mountain Institute carries on a lot of his work, and appears to be gaining the attention of numerous large companies, which are discovering that building energy efficiency and environmental awareness into new facilities can not only help the environment, but also save them money. Both articles are well worth a read. The one in Discover will tell you more about the science and technology, while the New Yorker focuses more on the man. It sounds like if you ever meet him, you can expect to have a thick stack of white papers pressed into your hands.

The leading edge of Small, of course, is nanotechnology—machines and structures engineered at the atomic and molecular level. Nanotech offers all kind of promise, but also possible hazards. One of the possible hazards is the potential biological effects of tiny fibers from products based for example on nanotubes as they degrade, or are disposed of. There is at least some risk that nano-fibers in the environment might prove to be the next asbestos. Well, according to the Washington Post technology section, some forward thinkers at a place called the ETC Group in Toronto have already observed that it would be useful to have a universal warning sign for nano-materials, and have started a competition to see who can come up with the best warning sign. Entries have poured in. You can view a large gallery of them at http://www.etcgroup.org/gallery2/v/nanohazard, and even cast a vote; or just view the finalists at http://www.etcgroup.org/gallery2/v/finalists/.

*Okay, it’s a year old. But I just finally picked it up and read it, so it’s recent to me.

Water on Mars and a Cool Historical Link

In case you’ve been living on the Moon and haven’t heard, they’ve found evidence of possible liquid water on Mars—water that flowed, not in the geologically recent past, but over the lifetime of one of our probes. If it proves out, that’s just plain cool. Maybe next we’ll find a Martian frog.

Also, a friend sent along this link, to a Flash display on the Maps of War web site showing all of the various empires that have controlled the Middle East over the last 5000 years (including a few I’d never heard of). It takes 90 seconds to play, and is well worth it.

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