NASA – The three Space Shuttle Main Engines, in conjunction with the Solid Rocket Boosters, provide the thrust to lift the Orbiter off the ground for the initial ascent. The main engines continue to operate for 8.5 minutes after launch, the duration of the Shuttle’s powered flight.
After the solid rockets are jettisoned, the main engines provide thrust which accelerates the Shuttle from 4,828 kilometers per hour (3,000 mph) to over 27,358 kilometers per hour (17,000 mph) in just six minutes to reach orbit. They create a combined maximum thrust of more than 1.2 million pounds.
As the Shuttle accelerates, the main engines burn a half-million gallons of liquid propellant provided by the large, orange external fuel tank. The main engines burn liquid hydrogen — the second coldest liquid on Earth at minus 423 degrees Fahrenheit (minus 252.8 degrees Celsius) — and liquid oxygen.
The engines’ exhaust is primarily water vapor as the hydrogen and oxygen combine. As they push the Shuttle toward orbit, the engines consume liquid fuel at a rate that would drain an average family swimming pool in under 25 seconds generating over 37 million horsepower. Their turbines spin almost 13 times as fast as an automobile engine spins when it is running at highway speed. more> http://tinyurl.com/r7j8a9
http://www.MarkFiore.com Snuggly the Security Bear is back! This time he’s updating you on Internet privacy and other civil liberty fun. See what happens when you’re perfectly safe and secure! A Mark Fiore political animation.
Posted in Business, Economy, Media, Regulations, Technology, VIDEO
Tagged Cybersecurity, First Amendment, Fourth Amendment, Government, Internet, Organization, Safety, Security
By Jeremy van Loon – Fitting irregular streams of wind power generated by tens of thousands of turbines in the U.S., Europe, and China into electricity grids that need to keep supply and demand in close balance is a complex challenge for utilities. Using a constant energy source like coal is far easier.
The government-provided forecasts that Spanish network operator Red Eléctrica uses “are quite reliable for the next six hours, and beyond 24 hours out the margin of error is about 15 percent,” says company spokesman Antonio Calvo. more> http://tinyurl.com/2e6cgjc
By Trevor Butterworth – In the brutal world of diminished revenue, it was surely more cost-effective to hire a bunch of young bloggers and have them opine their way into thousands of page views.
Media needs to raise the level of its game: reporters need to be tech savvy in order to take the kind of reporting done by Priest and Arkin to the next level rather than let it flounder in conventional Washington wisdom – a horse race story of turf battles and lobbying and waste. The only way to know if government is screwing up is to know enough tech to know whether the bureaucrats know enough tech. This is a critical business problem in government running cybersecurity: brilliant minds get big paychecks for going private. more> http://tinyurl.com/2do6aoq
Posted in Business, Economy, Leadership, Media, Net, Science, Technology, telecom
Tagged Cybersecurity, First Amendment, Government, Net evolution, Organization, Safety, Security
By Stewart M. Patrick, Mary Elise Sarotte, Kathleen R. McNamara, Charles A. Kupchan, Katinka Barysch, Fraser Cameron – The EU remains the best-developed model of regional integration and will continue to serve as an example for other regional groupings.
Despite the euro crisis, the EU remains the world’s most advanced regional integration project.
West German chancellor Helmut Kohl and French president François Mitterrand achieved one of the greatest feats in the history of money. Neither had expertise, or even interest, in economic and monetary matters, apart from their political impact. As the eurozone crisis demonstrates, the hope that the Maastricht criteria could run the common currency area in lieu of careful economic governance proved false.
The 2010 crisis has had some fortunate consequences. It exposed weaknesses within individual countries and in the Maastricht Treaty. It confirmed that the eurozone cannot rely on financial markets to address its own weaknesses. It revealed that some kind of permanent bailout procedure is necessary. more> http://tinyurl.com/24l9fcz
Posted in Banking, Business, Economic development, Economy, History, Leadership, Regulations
Tagged Banking reform, Capital, Credit, Currency, Debt, Deficit, Financial crisis, Government, Monetary policy, Organization, Productivity, Super regions, Taxes