Tag: engineering

For the last five days there has been no contact with the Russian scientists drilling down more than two miles to Lake Vostok in Antarctica.

8:07 am

Updated and bumped: Six days now, and no word.

Fact meets science fiction: For the last five days there has been no contact with the Russian scientists drilling down more than two miles to Lake Vostok in Antarctica.

The team from Russia’s Arctic and Antarctic Research Institute (AARI) have been drilling for weeks in an effort to reach isolated Lake Vostok, a vast, dark body of water hidden 13,000 ft. below the ice sheet’s surface. The lake hasn’t been exposed to air in more than 20 million years.

Priscu said there was no way to get in touch with the team — and the already cold weather is set to plunge, as Antarctica’s summer season ends and winter sets in. “Temps are dropping below -40 Celsius [-40 degrees Fahrenheit] and they have only a week or so left before they have to winterize the station,” he said. “I can only imagine what things must be like at Vostok Station this week.”

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R.I.P: Roger Boisjoly, 73, has died.

8:00 am

R.I.P: Roger Boisjoly, 73, has died.

Boisjoly was the engineer who in 1985 warned NASA about the danger of launching the shuttle in cold weather, that the solid rocket booster’s joints might not seal correctly under those conditions, thereby causing a catastrophic failure. Sadly, he was ignored, even ostracized, and on January 28, 1986, Challenger broke apart 74 seconds after launch, killing seven astronauts.

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Virgin Galactic hopes to begin the first powered flight tests of SpaceShipTwo this coming summer.

10:02 pm

Getting close: Virgin Galactic hopes to begin the first powered flight tests of SpaceShipTwo this coming summer.

“Over the next few months we’re integrating parts and pieces of the hybrid rocket motor into the SpaceShipTwo airframe, completing ground testing of the rocket motor, and then [will] try and start powered flight over the summer,” [chief executive officer and president George] Whitesides told SPACE.com. Those rocket-powered flights, he said, will continue for some period of time. Whitesides said it looks possible “to get up to space altitude by the end of the year, if all goes well.”

The company is also building a second WhiteKnightTwo and SpaceShipTwo,

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The head of Russia’s space agency makes news again

9:33 am

The following stories are all the result of statements made by Vladimir Popovkin, the head of Roscosmos, the Russian Federal space agency, during a radio interview yesterday.

This is the same guy that only a few weeks ago was throwing accusations at the U.S. for the failure of Phobos-Grunt.

What should we make of these statements? First, everything Popovkin says is aimed at fund-raising. Whatever his background, he is a political appointee whose job is to generate interest and funding for Russia’s space program. Everything he says in public must be weighed against this reality. That he first tried to shift the blame to the U.S. for Phobos-Grunt’s loss was an effort to absolve his program from any blame and thus reduce the possibility that the Russian government might cut his funding. Now that his agency has gotten approval of its insurance payment for the failure, however, he is free to say otherwise.

Second, these announcements give us a clear indication of where the Russia space effort is heading, and that effort looks both thoughtful and intelligent.
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The Orion test capsule arrived in Alabama for tests, covered in fan signatures.

6:45 pm

You think Americans aren’t interested in space travel? Get this: The Orion test capsule arrived in Alabama for tests, covered in fan signatures.

Orion and NASA’s space launch system might not get us there, but that doesn’t matter in this case. The public is expressing its desire for space travel quite clearly. All they need is someone to provide it to them at a reasonable cost.

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Laser-guided bullets

4:55 pm

Laser-guided bullets.

Invented by engineers at the US government’s Sandia National Laboratories, the self-guided bullet homes in on a laser spot trained on a target from up to 1.4 kilometres away from its firing point. If the target is a moving truck, say, and it moves after the bullet is fired, the laser illumination as seen by a laser sensor in the bullet’s nose instructs the bullet to finely twist tiny rudder-like fins on its rear end to keep it on target.

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The Great Moonbuggy Race

11:21 am

The Great Moonbuggy Race.

The Great Moonbuggy Race is an engineering competition that requires a team of six students to design a “proof-of-concept” wheeled rover that will race over a half mile of simulated lunar terrain. In April, two team members, one male and one female, will drive the completed vehicle in competition at the U.S. Space and Rocket Center in Huntsville, Alabama. This contest will present design challenges that are similar to those encountered by the original lunar rover team. This is the 16th year of competition for high school teams, but it will be the first year for Chicago’s public high school students.

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The Russians now say the next manned flight to ISS will be delayed a month, until the end of April, due to defects found in the Soyuz capsule.

7:01 pm

The Russians now say the next manned flight to ISS will be delayed a month, until the end of April, due to defects found in the Soyuz capsule.

The story suggests some confusion over what caused the cracks, either defects to the capsule itself or a mistake in the testing process.

A commission set up to probe the setback said violations of the testing procedure caused the damage to the reentry vehicle incident, earlier reports said. Either excessive pressure was applied by the personnel, or the shell of the reentry vehicle had defects or was improperly welded up.

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“This re-entry capsule now cannot be used for manned spaceflight.”

4:34 pm

“This re-entry capsule now cannot be used for manned spaceflight.”

This postponement of the next two Russian manned missions to ISS looks like a serious problem. For cracks to form in a finished capsule when tested under pressure suggests significant production failures that had gone unnoticed during assembly. In fact, this problem is far more serious than the launch failure that occurred last year. The Russians have to not only find a capsule they can trust to use on the next flight, they have to track down the errors that allowed a capsule to be built that is so obviously flawed it cracked when put in use.

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The Soviet Union’s gigantic nuclear equipped Ekranoplane

9:53 am

The Soviet Union’s gigantic nuclear equipped Ekranoplane, rusting on the shores of the Caspian Sea. With pictures.

Equipped with nuclear warheads and able to blast across the sea at 340 mph, the Lun-class Ekranoplane; part plane, part boat, and part hovercraft — is a Ground Effect Vehicle (GEV). A GEV takes advantage of an aeronautical effect that allows it to lift off with an immense amount of weight, but limits its flight to 16 feet above the waves. Its altitude can never be greater than the length of the wings.

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The full Gingrich speech on space

11:47 pm

As noted by one commenter, the full Gingrich speech on space is available here on C-SPAN.

I have now listened to the whole speech, and can say without hesitation that everything I wrote in my previous post was correct. Gingrich is knowledgeable about space, science, and history. He is basing his proposals on past successful models where the U.S. government did nothing but buy the product developed by private individuals or companies. These proposals actually continue as well as accelerate the Obama administration’s efforts. And he is not proposing a giant pork program.

His proposal to have a moon base by 2020 is unquestionably campaign talk that won’t happen. Nonetheless, this proposal is aimed at energizing the American aerospace industry by focusing the government’s goals, which will then need to be purchased by the government from private companies. He also made it very clear he wants to shrink the NASA bureaucracy, reducing its budget while devoting ten percent of that savings (equal to billions of dollars) for prizes. The example of a $10 billion tax-free prize for the first to get to Mars was only for illustration. As he said,

The model I want us to build is largely is the model of the ’20s and ’30s, when the government was actively encouraging development but the government wasn’t doing anything. The government was paying rewards, it was subsidizing the mail. … We had enormous breakthroughs in aviation in the ’20s and ’30s at very little cost to the government because lots of smart people [outside the government] did it.

I beg everyone to listen to this speech, in its entirety. It illustrates a thoughtful man who understands history. Gingrich might not be a perfect man, and he certainly is not the perfect candidate for President, but don’t tell me what you think of him if you refuse to listen to him. For two decades too many people have eagerly expressed opinions about him without really listening to what he has actually said or done. And what he says here is reasonable, intelligent, and certainly worthy of consideration.

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Gingrich’s speech on space

8:31 am

In the days ahead there is going to be a lot of talk about Newt Gingrich’s proposals for space exploration. I think it important that people actually see and listen to the entire speech before discussing it. Here is the longest clip I can find on youtube, covering the first seven and a half minutes. I think it is complete, but unfortunately, I can’t be sure. It doesn’t appear to include his remarks about awarding space prizes, and when it ends Gingrich does not appear to be finished. When I find a longer clip I will post it.

Several points immediately come to mind:
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A new superconducting detector might supersede CCDs for astronomy

11:27 am

Good news: A new superconducting detector might supersede CCDs for large astronomical telescopes.

Ben Mazin, an astronomer at the University of California, Santa Barbara, believes that he is on the cusp of a camera breakthrough: his lab is working on a superconducting detector that could eventually replace the charge-coupled devices (CCDs) that have become de rigueur in both consumer and astronomical digital cameras. Mazin’s detectors, known as microwave kinetic inductance detectors (MKIDs), can simultaneously count photons, measure their energy and record each one’s time of arrival — something that CCDs can do only after the light is split with a prism or a grating, an extra step that adds to the loss of photons.

And you know that inevitably some variation of this technology is going to find its way into ordinary commercial products.

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