Tag: engineering

A student experiment that was successfully flown up and down to ISS by Dragon is apparently a failure because no one on ISS ever turned it on.

8:46 am

A student experiment — successfully flown up and down to ISS by Dragon — is apparently a failure because no one on ISS ever turned it on.

Per instructions from NanoRacks, the Houston company that works with NASA to integrate such deliveries, Warren packed his worms, or C. elegans, into a glass ampule, or tube, then packed that tube into a larger one containing a liquid “growth medium” for the worms. An astronaut aboard the space station was to crack the outer ampule in a way that would release the worms into the surrounding liquid. It never happened.

The article is very diplomatic about this, but it is very clear that either the astronauts on ISS screwed up, or NASA did by not giving them clear instructions.

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A European Space Agency (ESA) working group has recommended the agency focus its next manned space project on redesigning its now abandoned ATV cargo ship as a service module for the U.S.’s Orion capsule.

9:14 am

Birds of a feather: A European Space Agency (ESA) working group has recommended the agency focus its next manned space project on redesigning its now abandoned ATV cargo ship as a service module for the U.S.’s Orion capsule.

Believe it or not, this is how ESA plans to pay for its use of ISS from 2017 to 2020, by abandoning the ATV (which supplies ISS) and building a service module for a capsule that might never launch and is not intended to go to ISS anyway.

But then, it isn’t surprising, coming from a government agency.

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ATK’s push to build its Liberty launch system.

9:17 am

The competition heats up: ATK’s push to build its Liberty launch system.

Liberty was one of the suitors [for NASA’s commercial crew] funding, before losing out to the four aforementioned options during the selection process. However, ATK decided to press on with the development of the system under an unfunded Space Act Agreement (SAA), with a clear intent of convincing NASA they deserve to be awarded funding for the path towards crewed launches.

Indeed, ATK have stated that they will continue with the development of Liberty regardless of NASA funding, as much as Agency support would provide an accelerated schedule towards bringing the vehicle into operation by 2015. [emphasis mine]

If you read the article, you will see that there are many reasons why I would rather NASA did not pick ATK. The system depends too much on the shuttle’s legacy at the Kennedy Space Center (the VAB, crawler, etc), which means it will probably require a large labor force to launch and thus be expensive. However, if ATK can make Liberty profitable without NASA, I am all for them.

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Since 2006 carbon dioxide emissions in the U.S. has plunged, almost reaching 1991 levels.

3:59 pm

Since 2006 carbon dioxide emissions in the U.S. have plunged, almost reaching 1991 levels.

The key driver for the “shockingly good news” that CO2 emissions will probably fall this year to a two-decade low … is “the shale gas revolution, and the low-priced gas that it has made a reality, especially in the last 12 months. As of April, gas tied coal at 32% of the electric power generation market, nearly ending coal’s 100 year reign on top of electricity markets (see related CD post on this energy milestone). Let’s remember the speed and extent of gas’s rise and coal’s drop: coal had 52% of the market in 2000 and 48% in 2008.”

It is important to note that it is innovation, technology, and capitalism that is making this happen. Without a free market the shale gas revolution would not have occurred.

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Boeing and Lockheed Martin are both considering hiring the Russia aerospace company Energia to build components for the CST-100 and Orion manned capsules.

9:01 am

It appears that both Boeing and Lockheed Martin are considering hiring the Russia aerospace company Energia to build components for the CST-100 and Orion manned capsules.

What is going on here is that both Boeing and Lockheed Martin are looking for a subcontractor who can build these components for less money. Since labor costs in Russia are much lower than the U.S., both companies are considering Energia for this work.

This quote, however, encapsulates the cultural war that still goes on sometimes between Russia and the U.S.:

“[Russian] achievements in docking sites and [thermal protection equipment] production are quite competitive, but I am not sure that the Americans will accept our offer because they not only have the task of building a spaceship but also of gaining competence in this matter,” Dmitry Payson, director of the space and telecommunication technology department in Russia’s Skolkovo hi-tech hub, told Izvestia.

In interviewing many Russian and American space engineers over the years I have found an amazing amount of contempt from each for the work of the other, often without justification. Just as the Russians above seem to falsely think that Boeing and Lockheed Martin know nothing about docking equipment or thermal protection, American engineers repeatedly have expressed to me unjustified disdain for the space station technology developed by the Russians for Mir. The result: both countries often don’t take advantage of the other’s skills.

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NASA today unveiled for the press the Orion capsule scheduled for the program’s first test flight in 2014.

9:35 pm

NASA today unveiled for the press the Orion capsule scheduled for the program’s first test flight in 2014.

Today’s unveiling was essentially a PR event designed to boost political support for the Space Launch System (SLS) and the Orion capsule program. And though we should definitely give kudos to Lockheed Martin for its progress on Orion, it is also important to note that the building of this capsule took 8 years and about $6.5 billion. And it won’t go into space for still another two years at best. Compare that to SpaceX’s Dragon, which took about four years from concept to launch, with a cost of about $1 billion.

It is this contrast that is worrying the political supporters of SLS and Orion. Consider for example this quote from the above article:

But the Orion schedule assumes steady funding by Congress, which is an open question given the current debate over federal budget deficits, taxes and a general push to reduce federal spending. “We have to be concerned about that because we are in an era of government spending where you have to do more with a limited amount,” Nelson said. “That, of course, is going to be one of the main things we’re going to have to look at in the future.” [emphasis mine]

Nelson has been a big backer of SLS from the moment Congress decided to force it down NASA’s throat. It is very clear from his comments above however that he recognizes the political difficulties that this very expensive program faces.

As I’ve said before, I expect SLS to die sometime in the next three years. Faced with a ungodly federal deficit, the next Congress is going to look for ways to save money and — assuming the commercial space companies like SpaceX continue to have success — Congress will see this program as one of those ways.

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Russia’s Deputy Prime Minister said today that his country needs to expand its commercial space services and grab market share from the United States and Europe.

5:05 pm

The competition heats up: Russia’s Deputy Prime Minister said today that his country needs to expand its commercial space services and grab market share from the United States and Europe.

I wonder if these comments stem from a realization that — because Russia’s Proton rocket, its main commercial space product, is twice as expensive as SpaceX’s Falcon 9 — Russia faces a significant loss of business if it does not adapt.

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Clark Lindsey posted today this interesting cost comparison between the Falcon 9 and the Russian-built Proton rocket.

1:23 pm

The cost of launch: Clark Lindsey posted today this interesting cost comparison between the Falcon 9 and the Russian-built Proton rocket.

The essence is this: The Proton rocket costs twice as much as the Falcon 9. If SpaceX can make a profit charging these low numbers, the launch industry is going to see a major shake out in the coming years.

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The most powerful rocket presently in service, the Delta-4 Heavy, successfully launched a U.S. surveillance satellite this morning.

1:19 pm

The most powerful rocket presently in service, the Delta-4 Heavy, successfully launched a U.S. surveillance satellite this morning.

The booster features three core rocket boosters and is topped with a second stage to place payloads into orbit. It is 235 feet tall (72 meters) and can carry payloads of up to 24 tons into low-Earth orbit and 11 tons to geosynchronous orbits.

SpaceX’s proposed Falcon Heavy would launch about 50 tons into low Earth orbit, making it twice as powerful, should it be built. The next obvious question, which I can’t answer at the moment, is how do these two rockets compare in terms of cost?

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A skeptic takes an educated look at alternative energy.

12:52 am

A skeptic takes an educated look at alternative energy.

The matter of affordable costs is the hardest promise to assess, given the many assorted subsidies and the creative accounting techniques that have for years propped up alternative and renewable generation technologies. Both the European Wind Energy Association and the American Wind Energy Association claim that wind turbines already produce cheaper electricity than coal-fired power plants do, while the solar enthusiasts love to take the history of impressively declining prices for photovoltaic cells and project them forward to imply that we’ll soon see installed costs that are amazingly low.

But other analyses refute the claims of cheap wind electricity, and still others take into account the fact that photo­voltaic installations require not just cells but also frames, inverters, batteries, and labor. These associated expenses are not plummeting at all, and that is why the cost of electricity generated by residential solar systems in the United States has not changed dramatically since 2000. At that time the national mean was close to 40 U.S. cents per kilowatt­-hour, while the latest Solarbuzz data for 2012 show 28.91 cents per kilowatt-hour in sunny climates and 63.60 cents per kilowatt-­hour in cloudy ones. That’s still far more expensive than using fossil fuels, which in the United States cost between 11 and 12 cents per kilowatt-hour in 2011. The age of mass-scale, decentralized photovoltaic generation is not here yet.

Then consider the question of scale. Wind power is more advanced commercially than solar power, but with about 47 gigawatts in the United States at the end of 2011 it still accounted for less than 4 percent of the net installed summer generating capacity in that country. And because the capacity factors of U.S. wind turbines are so low, wind supplied less than 3 percent of all the electricity generated there in 2011.

Read the whole article. It is detailed, thoughtful, and blunt.

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Both Russia and the United States have developed a “pain ray” weapon for dispersing protestors.

4:41 pm

What could go wrong? Both Russia and the United States have developed a “pain ray gun” for dispersing protestors.

The beam has a much shorter wavelength than a microwave oven and very different effects. The waves penetrate only about 1/64 of an inch, and anyone caught in the beam experiences painful but harmless heating of their skin. It causes what developers call a repel effect; nobody can stand it more than a few seconds before having to get out of the beam.

That’s the American system, not yet used. The Russian system is similar, and the Russians seem ready and willing to put it into operation.

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