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Archive for July, 2011

Splitting Water with Cobalt

11 Jul

Abstract

The future of energy supply depends on innovative breakthroughs regarding the design of cheap, sustainable, and efficient systems for the conversion and storage of renewable energy sources, such as solar energy. The production of hydrogen, a fuel with remarkable properties, through sunlight-driven water splitting appears to be a promising and appealing solution. While the active sites of enzymes involved in the overall water-splitting process in natural systems, namely hydrogenases and photosystem II, use iron, nickel, and manganese ions, cobalt has emerged in the past five years as the most versatile non-noble metal for the development of synthetic H2- and O2-evolving catalysts. Such catalysts can be further coupled with photosensitizers to generate photocatalytic systems for light-induced hydrogen evolution from water.

Thumbnail image of graphical abstract

It’s cobalt’s turn: Splitting water with light appears to be a promising solution for the renewable production of a fuel such as hydrogen. Recent developments on cobalt-based catalysts for H2 or O2 evolution are discussed, along with how they can be coupled with photosensitizers, to generate light-driven systems, or immobilized onto conducting materials to form electrodes or photoelectrodes for integration in a photoelectrochemical cell.

 
 

Nom Pourflickr

11 Jul

A brilliant photo by Nom Pourflickr (He’d prefer to remain nameless).

Nom Pourflickr photographer photography

 
 

Record for lowest-scoring Super Mario Bros. run broken

10 Jul
You guys are still doing speed-runs? Psh, speed-runs are so 2005. These days, it's all about low-score runs; baffling attempts at calculated badness, wherein highly-skilled gamers do everything they can to do as little as possible.

No one does better at doing poorly than YouTube power-gamer NotEntirelySure, who recently completed the lowest-scoring no-death game of Super Mario Bros. ever, finishing the entire game with a trifling 600 points. As a spectator sport, we think the low-score run has potential, although we're still not sure why our "average-score" runs never took off with the precision gaming community.

[Thanks Gishman!]

JoystiqRecord for lowest-scoring Super Mario Bros. run broken originally appeared on Joystiq on Sun, 10 Jul 2011 10:30:00 EST. Please see our terms for use of feeds.

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Have American Businesses Been Stranded By the MBAs?

10 Jul
theodp writes "In his new book, Car Guys vs. Bean Counters: The Battle for the Soul of American Business, legendary car-guy Bob Lutz says to get the U.S. economy growing again, we need to fire the MBAs and let engineers run the show. The auto industry, writes TIME's Rana Foroohar, is actually a terrific proxy for a trend toward short-term, myopically balance-sheet-driven management that has infected American business. In the first half of the 20th century, industrial giants like Ford, GE, AT&T and others used new technologies to create the best possible products and services with the idea that if you build it better, the customers will come. But by the late '70s, if-you-can-measure-it-you-can-manage-it MBAs were flourishing, and engineers were relegated to the geek back rooms. 'Shoemakers should be run by shoe guys,' argues Lutz, 'and software firms by software guys.' Learning that China plans to open 40 new graduate schools of business in the next few years, Lutz quipped, 'That's the best news I've heard in years.'"

Read more of this story at Slashdot.

 
 

Of Twitter and infographics

09 Jul
If the Twitter community was 100 people. by mkandlez, on Flickr
Creative Commons Attribution-Noncommercial 2.0 Generic License  by  mkandlez 

I love this infographic because it condenses the original report into a bite-sized nugget that is easy to understand. Its creator probably had to take some creative and interpretive liberties, but he was entitled to.

And it looks like I fall in the blue 5%. I don’t tweet enough to be in that purple group!


Tagged: infographic, twitter
 
 

Today’s Polar Bears Started Out Brown and Irish [Video]

08 Jul

Polar bears' "mitochondrial Eve," the female from whom all of today's polar bears are descended, was not a polar bear at all.

On July 7 researchers published their findings about the species history of polar bears in Current Biology . One of their discoveries was that the mitochondrial DNA in the cells of every polar bear's body originated in the cells of a female brown bear that lived in the neighborhood of Britain and Ireland during the era when Neandertals' numbers began go dwindle. [More]

 
 

Space Exploration: 9 Private Sector Companies Ready to Take Off

08 Jul

When Atlantis launched on Friday morning, it was the last of NASA’s space shuttle flights.

The event marks the end of a 30-year program that has put 777 people in orbit.

But it is not the end of space exploration in the United States. Companies have been engaging in a private sector space race alongside and in partnership with NASA for quite some time.

SEE ALSO: Space Shuttle Launch: Photos from the Final Atlantis Flight

In April, NASA awarded four of these companies $269 million to develop spacecraft, and companies in the private sector have also established expertise in other aspects of space travel, like space suits and climate control. Some are even famously selling tickets for consumer space flights.

Here are what some of them are working on.


1. Armadillo Aerospace





What it does: Builds reusable rocket-powered vehicles.

Claim to fame: An exclusive agreement with Space Adventures, a consumer space travel company. "Eventually, we wish to provide a platform for civilian flights to suborbital space, and ultimately, we plan to reach orbit," reads the site's FAQ.


2. Masten Space




What it does: Designs and builds reusable space vehicles. Unlike most other commercial space companies, Masten specializes in unmanned, suborbital flights.


3. Oribital Outfitters




What it does: makes space suits for commercial and government space travels.

Most interesting project: Orbital Outfitters partnered with a company called SpaceDiver on a project that will demonstrate the capability to dive from a space shuttle and return to Earth safely.


4. Oribital Sciences




What it does: About 3,700 employees help make space launch vehicles, missile defense systems and satellites as well as offer space technical services at this more than 29-year-old company. It's like a department store for space.

Claim to Fame: In 2002, the company signed its largest contract ever: $900 million to develop, build, test and support missile interceptor booster vehicles for the Boeing Company.


5. Paragon Space Development




What it does: Makes environmental controls for extreme and hazardous environments, like space.

Claims to fame: Paragon is responsible for the first full-motion, long-duration video (4 months, 60 total minutes) of plant and animal growth on orbit, the first multigenerational animal experiment in space and the first commercial experiment on the International Space Station.


6. Virgin Galactic




What it does: Sells tickets for consumer space trips. The company has already sold about 430 tickets.

Cost per ticket: $200,000


7. XCOR Aerospace




What it does: Flight vehicles, piston pumps and rocket engines. And of course, consumer sub-orbital space travel. Its two rocket-powered vehicles, the X-Racer and EX-Rocket, have safely completed 67 piloted demonstrations.

Cost per ticket: $95,000


8. SpaceX




What it does: Space transport. Eventually wants to put a man on Mars.

Famous Founder: SpaceX was founded by Elon Musk, the cofounder of PayPal and Tesla Motors.


9. Blue Origin




What it does: Develops vehicles and technologies to lower the cost and increase the reliability of human access to space.

What Amazon and space have in common: Blue Origin is owned by Amazon-founder Jeff Bezos.


10. Bigelow Aerospace




What it does: "Expandable space habitat technology." The company creates space stations that have more breathing room than your everyday "aluminum can" International Space Station by using inflatable components. Eventually it hopes to lease space on one of its stations for experiments and research. Two prototypes are already in orbit.

Great Expectations: "We anticipate construction of our first space station to begin with a Sundancer launched in early 2014, and that by 2015 the station will be available for client use," says Bigelow's website.

More About: astronomy, Atlantis, List, Lists, Science, space, startups, tech

For more Tech & Gadgets coverage:


 
 

Space Shuttle Atlantis Launch Video: The Final Flight

08 Jul


At 11:26 ET Friday, space shuttle Atlantis flew up in the sky toward the International Space Station, marking an end of an era: It was the last aircraft to launch as part of NASA’s space shuttle program.

Atlantis will carry four astronauts during the 12-day mission, bring supplies and spare parts to the International Space Station and conduct an experiment to test new refueling and repair technology for satellites in orbit, after which it will return to Earth and retire.

SEE ALSO: Space Shuttle Launch: Photos from the Final Atlantis Flight

If you’ve missed the live stream of the launch, you can see it in the archived video below. The actual liftoff starts somewhere around 18:00 in the video.


Photos from the Final Atlantis Flight


Stay tuned. We’ll keep updating this gallery with new photos.


Liftoff




Photo courtesy of NASA.


Liftoff




Photo courtesy of NASA.


Liftoff




Photo courtesy of NASA.


Liftoff




Photo courtesy of NASA.


Solid Rocket Booster Separation




Photo courtesy of NASA.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Liftoff




Photo courtesy of Ryan Matzner.


Mashable Media Badge




Photo courtesy of Ryan Matzner.


NPR Tweeted




Photo courtesy of Ryan Matzner.


Official Launch M&Ms




Photo courtesy of Ryan Matzner.


Elmo Reports Launch




Photo courtesy of Ryan Matzner.


Media Getting Signals




Photo courtesy of Ryan Matzner.


@SethGreen Tweeted




Photo courtesy of Ryan Matzner.


Tweetup Participants




Photo courtesy of Ryan Matzner.


Tweetup Participants




Photo courtesy of Ryan Matzner.


Tweetup Badge




Photo courtesy of Ryan Matzner.


Tweetup Participants




Photo courtesy of Ryan Matzner.


Tweetup Participants




Photo courtesy of Ryan Matzner.


Tweetup Participants




Photo courtesy of Ryan Matzner.


@schierholz Handed Out M&Ms




Photo courtesy of Ryan Matzner.


@schierholz Tweeted




Photo courtesy of Ryan Matzner.


@schierholz's Badge




Photo courtesy of Ryan Matzner.


Shuttle Atlantis




Shuttle Atlantis moves into the Vehicle Assembly Building.

Photo courtesy of NASA.


Atlantis Sunrise




The sun rises over the launch pad at NASA's Kennedy Space Center in Florida.

Photo courtesy of NASA.


Atlantis Sunset




Sunset over Launch Pad 39A before the Raffaello multi-purpose logistics module (MPLM) is delivered.

Photo courtesy of NASA.


Atlantis Sunrise




Another sun rises over the Shuttle Atlantis.

Photo courtesy of NASA.


The Crew Celebrates




The STS-135 crew wave American flags in honor of Independence Day. From left: Commander Chris Ferguson, Pilot Doug Hurley, and Mission Specialists Sandy Magnus and Rex Walheim.

Photo courtesy of NASA.


The Crew Heads for Final Launch Preparation




The STS-135 team departs for the Astronaut Crew Quarters in Kennedy's Operations and Checkout Building.

Photo courtesy of NASA.


Firing Room 4




In Firing Room 4, NASA team members prepare for launch.

Photo courtesy of NASA.


Launch Pad




Atlantis was "hard down" at its seaside launch pad by 3:29 a.m. EDT on Wednesday, June 1.

Photo courtesy of NASA.


Atlantis Flag




The Atlantis flag flutters below the American flag.

Photo courtesy of Ryan Matzner.


Launch Pad




A view of the launch pad from across the water.

Photo courtesy of Ryan Matzner.


Media Gathers




News crews prepare their equipment at tents near the launch pad.

Photo courtesy of Ryan Matzner.


Media Tents




Two-tier media tents provide better views of the Atlantis.

Photo courtesy of Ryan Matzner.


Launch Clock




Ryan Matzner, lead strategist at Fueled, a mobile app development firm, stands in front of the countdown-to-launch clock.

Photo courtesy of Ryan Matzner.


Media Tripods




Media stakes out their turf with tripods aimed at the shuttle launch.

Photo courtesy of Ryan Matzner.


Tweetup




Media and spectators alike participate in the lunch Tweetup.

Photo courtesy of Ryan Matzner.


En Route




The van will lead the procession of astronauts to the shuttle.

Photo courtesy of Ryan Matzner.


En Route




The astronauts en route to the launch pad.

Photo courtesy of Ryan Matzner.


En Route




Precious cargo on the way to the launch pad.

Photo courtesy of Ryan Matzner.


Vehicle Assembly Building




An impressive spectacle in itself, the Vehicle Assembly Building has been used to assemble NASA vehicles since 1968. It is the largest single-story building in the world.

Photo courtesy of Ryan Matzner.


Vehicle Assembly Building




A view of the vehicle assembly building.

Photo courtesy of Ryan Matzner.


BONUS: Amazing Photographs From Endeavour’s Last Voyage


NASA recently released these breathtaking images from the last voyage of Endeavour following its return from space last month. Until October 2010, it was believed that the Endeavour mission would be the last space shuttle flight — now Atlantis is set to take that honor.


Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage





Endeavour's final voyage




More About: flight, NASA, space, space shuttle, Space Shuttle Atlantis, video

For more Tech & Gadgets coverage:

 
 

QUOTE: “I could end the deficit in 5 minutes. Y…

08 Jul

“I could end the deficit in 5 minutes. You just pass a law that says that anytime there is a deficit of more than 3% of GDP all sitting members of congress are ineligible for reelection.”

—Warren Buffett giving us a quick lesson on incentive in this interview on CNBC.

 
 

The Founding Fathers Tried to Warn Us About the Threat From a Two-Party System

07 Jul

Polls show that a majority of Americans say that both the Republicans and Democrats are doing such a poor job representing the people that a new, third party is needed.

I've repeatedly warned that there is a scripted, psuedo-war between Dems and Repubs, liberals and conservatives which is in reality a false divide-and-conquer dog-and-pony show created by the powers that be to keep the American people divided and distracted. See this, this, this, this, this, this, this, this, this and this.

In fact, the Founding Fathers warned us about the threat from a two party system.

John Adams said:

There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other. This, in my humble apprehension, is to be dreaded as the greatest political evil under our Constitution.

George Washington agreed, saying in his farewell presidential speech:

The alternate domination of one faction over another, sharpened by the spirit of revenge, natural to party dissension, which in different ages and countries has perpetrated the most horrid enormities, is itself a frightful despotism. But this leads at length to a more formal and permanent despotism. The disorders and miseries, which result, gradually incline the minds of men to seek security and repose in the absolute power of an individual; and sooner or later the chief of some prevailing faction, more able or more fortunate than his competitors, turns this disposition to the purposes of his own elevation, on the ruins of Public Liberty

 

Without looking forward to an extremity of this kind, (which nevertheless ought not to be entirely out of sight,) the common and continual mischiefs of the spirit of party are sufficient to make it the interest and duty of a wise people to discourage and restrain it.

 

It serves always to distract the Public Councils, and enfeeble the Public Administration. It agitates the Community with ill-founded jealousies and false alarms; kindles the animosity of one part against another, foments occasionally riot and insurrection. It opens the door to foreign influence and corruption, which find a facilitated access to the government itself through the channels of party passions. Thus the policy and the will of one country are subjected to the policy and will of another.

 

There is an opinion, that parties in free countries are useful checks upon the administration of the Government, and serve to keep alive the spirit of Liberty. This within certain limits is probably true; and in Governments of a Monarchical cast, Patriotism may look with indulgence, if not with favor, upon the spirit of party. But in those of the popular character, in Governments purely elective, it is a spirit not to be encouraged. From their natural tendency, it is certain there will always be enough of that spirit for every salutary purpose. And, there being constant danger of excess, the effort ought to be, by force of public opinion, to mitigate and assuage it. A fire not to be quenched, it demands a uniform vigilance to prevent its bursting into a flame, lest, instead of warming, it should consume.