Jul 24 2009

The Once and Future Spaceman

Category: science,shuttle,space,technologyharmonicminer @ 8:41 am

The REAL beginning of the Space Age?

Forty years after man stepped on the moon, Mary Wakefield says that the technology now exists for truly astonishing space travel and a new era fusing commerce and romance

So begins a truly fascinating article on the Space Age that may be about to begin. It includes an interesting analogy:

the first step…. is to realise that Apollo 11 mission is analogous not to Columbus’s but to the Viking discovery of America. In the 10th century Leif Eriksson, son of Erik the Red, landed with 35 men on the coast of North America. But Leif’s boats were too cumbersome for trade and his people unprepared for the ruthless ‘skraelings’, so their community soon died out. So too the Apollo programme was doomed by rushed decisions and cumbersome craft. JFK and LBJ chose their mission at random and their ship with a single thought in mind: beat Russia. No thought for our space-faring future.

Yes. SOMEBODY is going to explore, and exploit, space, and the resources that are there. But that may or may not be the USA.   Europe, Russia, China, India, Japan, Brazil, even Israel, all have the capability to do what the USA may not get around to doing, if it is too complacent, too self-absorbed, too politically correct.

What we need is earth-to-orbit technology that’s more appropriate to the institutional scale of corporations, instead of governments. And that means space planes instead of rockets.

Once you’ve realised that the space age isn’t over, that it hasn’t even begun yet, the second step to understanding the point of space is to realise that like Columbus, we now have the right vehicles for proper exploration. All around the world right now light, cheap space planes (launched and landed horizontally) are rolling from the drawing-board to runway. Whereas a rocket-launched shuttle needs battalions of keepers to brush it up again ready for flight, space planes are more modest. They might even be as easy to maintain as jet planes and able to launch with a few days’ or hours’ notice, at the whim of an impetuous cosmonaut. Most of a rocket’s weight is taken up by the oxidiser, but clever space planes can suck in oxygen from the atmosphere to burn fuel at least part of the way to orbit. Space planes will offer a relatively cheap way of delivering cargo into orbit, and once that begins to happen, our universe begins to unfurl.

What’s maddening is that very much of what is now being proposed is OLD NEWS, and could have been done thirty or forty years ago. For example, solar power satellites:

There’s much vicious debate online between geeks about the efficacy of asteroid mining, but spaced-based solar panels are a given. Because there are no clouds in space (the sun always shines on ET) the panels will soak up more and more powerful rays, then they’d beam the energy back to earth. This isn’t science fiction, it’s future fact.

In April this year a company called Solaren signed a contract with the Pacific Gas and Electric Company in northern California. They plan to hoick a kilometre-wide panel into orbit in 2016 and beam back 200MW of energy.

G.  Harry Stine was writing about this in the 1970s (!) and his book, “Space Power“, is still available online.  Further, President Obama has been challenged to fund a national project building solar power satellites.  But it seems he’d rather spend trillions on reducing the average quality of healthcare in America, insead of funding a project that would earn tens or hundreds of trillions for the national economy.

So we’ll see.  Will the lingua franca of space travelers be English?  Or Chinese?  I’m not looking forward to buying electricty from Peking.


Jul 22 2009

Woulda coulda shoulda

Category: government,healthcare,science,spaceharmonicminer @ 8:45 am

We’ve commented here before about the necessity of research and development, and the fact that some programs of R and D are so huge that only governments have the resources and long-term commitment to fund them.  And now, here is an article about where we would have been if  Apollo had not been cancelled, and NASA had been fully funded to continue lunar and planetary exploration and colonization.

What if things had been different that summer? Suppose Congress had granted NASA’s wish, then fast-forward 40-odd years…

It’s a fascinating read, admittedly conjectural, but essentially believable, about where we would be today.  And it would be better if we were.

In the meantime, Obama and nationalized healthcare are about to defund the huge bulk of medical and pharmaceutical research now under way, by the very simple mechanism of sucking the profit out of it, by adopting the European model of health care that’s killed the bulk of medical research there.

When I was 15, I was sure that by this time in my life, we’d be on Mars already.  That just seemed to be the direction things were going, and indeed we landed on the moon just three years later.  I find myself looking back with regret on the years we wasted, knowing that it’s entirely possible that I will not even live to see a Mars landing.

In forty years, will 57 yr olds of that year be saying, “When I was a kid, I thought by now we’d have personalized gene therapy that would cure cancer and most inherited diseases, replacement organs grown from stem cells, and significant life extension therapies….  but then Congress decided we should have nationalized health care, which quickly became health care rationing, and research just sort of really, really slowed down.”?

That decision may well be made in the next few weeks.  If you care about your own prospects, or those of your kids and grand-kids, I suggest you tell your congressman to OPPOSE the total takeover of healthcare by the federal government, and specifically, to OPPOSE the so-called “public option,” which is guaranteed to provide the incentive for most employers to cancel their own insurance programs, and dump their employees into the public system.

Just as it will also remove the profit motive as an incentive for the bulk of pharmaceutical and medical research.


Jul 18 2009

Selling vacuum cleaners on Mars?

Category: science,spaceharmonicminer @ 2:30 pm

Particle-size dependent bipolar charging of Martian regolith simulant

The intense dust devils and dust storms on Mars are believed to generate large electrostatic fields that significantly alter geophysical and geochemical processes on the planet. The existence of such fields must be related to a mechanism by which charged dust separates by polarity; it has been widely hypothesized that this separation originates from a particle-size dependence of the charge polarity, but this effect has never been demonstrated. To address this issue, we carry out experiments on the triboelectric charging of Martian regolith simulant (JSC-1 Mars), using a fluid flow apparatus wherein only particle-particle interactions occur, as is the case in Martian dust events. Our experiments show direct evidence that smaller particles tend to charge negatively and larger particles tend to charge positively, which provides a mechanism for the charge separation that creates electric fields in Martian dust events.

Translation: Mars dust sticks to stuff and it’s a mess. When you go there, better bring a vacuum cleaner.

In the meantime, the next time you’re in a dirty house, you can say that the occupants have suffered a “dust event.”


Jan 02 2009

the Impossible dream?

Category: science,spaceharmonicminer @ 9:43 am

For 50 years we’ve been Waiting for ET to phone us.

West Virginia. It is 6 am on an April morning in 1960 and Frank Drake is freezing cold. He peers up towards the focal point of the radio telescope. He mounts a flimsy ladder to the top and climbs into a space about the size of a garbage can. For the next 45 minutes, he tunes the receiver inside, which feels like starting an old car. He climbs back down and begins to listen.

Drake and colleagues were conducting a seminal experiment: the first modern search for extraterrestrial life. For four months, the researchers used the Tatel Telescope in Green Bank to listen for any intelligent signals from the stars Tau Ceti and Epsilon Eridani that might be hidden on the same wavelength as radiation emitted naturally by hydrogen. Drake named the effort Project Ozma after the princess in the 0z books by Frank Baum, who wrote that he used a radio to learn of events there.

April 2010 will mark the 50th anniversary of the start of Project Ozma, and those involved in the search for extraterrestrial life, or SETI, will be raising a glass. Not only did the experiment inspire countless people to continue the search, it brought alien-hunting into the mainstream and arguably seeded the science of astrobiology.

Other famous searchers for things that were never found:

   Albert Einstein and Unified Field Theory.

   Don Quixote and defeatable windmills

   Ponce de Leon and the Fountain of Youth

   Isaac Newton and a way to turn lead into gold

   AI researchers and actual machine intelligence

   Modern physics and cold fusion

You get the idea.  Some things just SOUND plausible, even likely.  The argument that “the universe is just so big that there has to be intelligent life out there” is like that.  It just instinctively sounds right.

That doesn’t make it right.

And even if they are there, the aliens are almost certainly far, far ahead of us, so far that we wouldn’t recognize one of their artifacts or communications methods if we saw it.  Or, they are so far behind us that they’re still working on inventing the bow and arrow, or controlling fire.  The odds of intelligent aliens in a detectable state of technological development anywhere near us are so small as to be laughable.

Don’t get me wrong.  I’ll all for funding more SETI, though I’m not acquiescent about more active approaches.  ET may not be nice.

But I don’t expect much to be found.


Jan 01 2009

the Impossible dream?

Category: science,space,technologyharmonicminer @ 9:19 am

For 50 years we’ve been Waiting for ET to phone us.

West Virginia. It is 6 am on an April morning in 1960 and Frank Drake is freezing cold. He peers up towards the focal point of the radio telescope. He mounts a flimsy ladder to the top and climbs into a space about the size of a garbage can. For the next 45 minutes, he tunes the receiver inside, which feels like starting an old car. He climbs back down and begins to listen.

Drake and colleagues were conducting a seminal experiment: the first modern search for extraterrestrial life. For four months, the researchers used the Tatel Telescope in Green Bank to listen for any intelligent signals from the stars Tau Ceti and Epsilon Eridani that might be hidden on the same wavelength as radiation emitted naturally by hydrogen. Drake named the effort Project Ozma after the princess in the 0z books by Frank Baum, who wrote that he used a radio to learn of events there.

April 2010 will mark the 50th anniversary of the start of Project Ozma, and those involved in the search for extraterrestrial life, or SETI, will be raising a glass. Not only did the experiment inspire countless people to continue the search, it brought alien-hunting into the mainstream and arguably seeded the science of astrobiology.

Other famous searchers for things that were never found:

   Albert Einstein and Unified Field Theory.

   Don Quixote and defeatable windmills

   Ponce de Leon and the Fountain of Youth

   Isaac Newton and a way to turn lead into gold

   AI researchers and actual machine intelligence

   Modern physics and cold fusion

You get the idea.  Some things just SOUND plausible, even likely.  The argument that “the universe is just so big that there has to be intelligent life out there” is like that.  It just instinctively sounds right.

That doesn’t make it right.

And even if they are there, the aliens are almost certainly far, far ahead of us, so far that we wouldn’t recognize one of their artifacts or communications methods if we saw it.  Or, they are so far behind us that they’re still working on inventing the bow and arrow, or controlling fire.  The odds of intelligent aliens in a detectable state of technological development anywhere near us are so small as to be laughable.

Don’t get me wrong.  I’ll all for funding more SETI, though I’m not acquiescent about more active approaches.  ET may not be nice.

But I don’t expect much to be found.


Dec 15 2008

Merry Christmas, with a little intergalactic reminder of the Logos

Category: Christmas,science,spaceharmonicminer @ 10:08 am

Hubble Space Telescope Advent Calendar 2008 – The Big Picture – Boston.com

As we head into the traditional western Holiday Season, I’d like to present this Hubble Space Telescope imagery Advent Calendar. Every day, for the next 25 days, a new photo will be revealed here from the amazing Hubble Space Telescope. As I take this chance to share these images of our amazing Universe with you, I wish for a Happy Holiday to all those who will celebrate, and for Peace on Earth to everyone.

Shoot, I’ll just go whole hog and say, Merry Christmas!

You do want to click the link above; it is quite beautiful. Here’s a taste.  Apologies for the large file, but you’ll see why.

Now go see the rest, at the link above.

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Oct 02 2008

Space, the USA, the future, the shuttle, and Russia

Category: Congress,Russia,shuttle,space,technologyharmonicminer @ 9:13 am

You may have seen this very interesting article on the future of space exploration featuring an interview with the head of NASA.

However, the NASA head lamented the end of the space shuttle program in 2010, concerned that in the interim period at least the United States will be reliant on other nations to reach the heavens.

“There will be a gap. I don’t like it but there it is. For the US to lose even for a period of time independent access to space, I don’t think it’s a good thing.”

In the time between the shuttle retires and the new generation of US spacecraft — Orion — gets off the ground, US astronauts will have to rely on the Russian Soyuz spacecraft to reach the International Space Station.

“I think that is a dangerous position to be in,” said Griffin. “If anything at all in that five-year period goes wrong with the Russian Soyuz … that is a great concern.”

As much as it costs, NASA is a tiny part of the federal annual budget. It is really stupid for us to have worked ourselves into any form of dependence on Russia, given its rising bellicosity, its use of Venezuela as a wedge into the Americas, its rearming, and its obvious bad intentions.   We will have cause to wish that past Congress critters had been a bit wiser, a bit less parsimonious in NASA funding, and a whole lot more far-seeing.

Apollo was canceled because Congress wanted to spend the money on social program, essentially. The Shuttle was a bizarre compromise between the military and NASA. And Congress has continued to starve NASA of funding for research and development of new space transportation systems, while finding money for ever expanding entitlement programs costing HUGELY more.  Just the PORK in every annual budget for the last 30 years would have seen us already on MARS and exploring the asteroids for resources.

The name for spending money on social short-term political benefit, instead of on R&D, is “eating your seed corn”.  You can’t plant it after you eat it.

Maybe that’s part of the reason the price of corn has gone up.

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Sep 28 2008

Private Space Flight gets closer

Category: economy,energy,science,space,technologyharmonicminer @ 6:09 pm

Unless I am mistaken, this is the first time a non-governmental organization or business has managed to put anything in orbit.

An Internet entrepreneur’s latest effort to make space launch more affordable paid off Sunday when his commercial rocket carrying a dummy payload was lofted into orbit.

It was the fourth attempt by Space Exploration Technologies, or SpaceX, to launch its two-stage Falcon 1 rocket into orbit.

The Hawthorne, California-based rocket maker was started by multimillionaire Elon Musk, who made his fortune as co-founder of the PayPal Inc. electronic payment system.

The rocket carried a 364-pound (165-kilogram) dummy payload designed and built by SpaceX for the launch.

Wow. Harbinger of things to come, I hope.

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