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Social Protocol

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Open Graph protocol - Développeurs Facebook. People use stories to share the things they're doing, the people they're doing them with and the places where they happen.

Open Graph protocol - Développeurs Facebook

Let people share stories about your app on Facebook through a structured, strongly typed API. To publish Open Graph stories with the Share dialog, you do not need to implement Facebook Login or ask for additional permissions. For more information, see Share Dialog. If you create a custom sharing UI to publishing Open Graph stories, you need to implement Facebook Login and request the publish_actions permission from people using your app.

This also means you need to submit your app for review, see Login Review. Tom Anderson - Google+ - The back & forth between Google & Facebook has been talked… Sorry, I'm going to be lazy and um, not read 191 comments.

Tom Anderson - Google+ - The back & forth between Google & Facebook has been talked…

But I can see +Daniel Gormley's. I find this interesting too. Waste Water + Bacteria = Clean Energy. For the first time, researchers have sustainably produced hydrogen gas, a potential source of clean energy, using only water and bacteria.

Waste Water + Bacteria = Clean Energy

The challenge now, scientists say, is to scale up the process to provide large amounts of hydrogen for various purposes, such as fueling vehicles or small generators. Hydrogen may be the ultimate clean fuel because burning it—in chemical terms, reacting it with oxygen—yields only water vapor. Previously, researchers have produced hydrogen gas in microbial-powered, batterylike fuel cells, but only when they supplemented the energy produced by the bacteria with electrical energy from external sources—such as that obtained from renewable sources or burning fossil fuels, says Bruce Logan, an environmental engineer at Pennsylvania State University, University Park. Also, by using devices that contain large stretches of permeable membranes that separate salt water from fresh, scientists have tapped the voltage difference that exists between them.