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What Happened to Lake Delhi Dam?
Record rainfall, faulty gates and inherent design issues contributed to the July 2010 breach of Iowa's Delhi Dam, investigators found. The overtopping caused the earthen embankment to erode and eventually emptied Lake Delhi, causing millions in property damage.
Categories: Water
Huge steel-plate rolling machine now takes instructions from an iPad
Filed under: Wind Energy News
Categories: Wind
Germany Invests in Hydrogen Technology for Renewable Storage, Vehicles
The tanks look like they could hold propane, gasoline or any other form of conventional energy.
Categories: Wind
Ten Clean Energy Stocks for 2012: 10 Percent More than Other Top-10 lists
Maybe it was because Seeking Alpha did not carry my annual list of 10 Clean Energy Stocks for 2012 this year, but no one seems to have noticed that there were actually 11 stocks in the list. Call it the Spinal Tap of top-ten lists.
Categories: Wind
OLPC Improves the XO's Membrane Keyboard
Resumen en español al final del artículo
One of the most frustrating aspects of my 2010 journey through Uruguay, Paraguay, and Peru was seeing how many children had to use XOs whose keyboards were broken. Uruguay seemed to be particularly hard-hit by this issue. From what I gathered this is due to the fact that they received many XOs which were produced fairly early on when OLPC had yet to implement changes to make the membranes of the keyboards thicker and thereby more robust.
As such I was very excited when I saw this photo showing off a new and seemingly much improved membrane keyboard which is the standard option for the upcoming ARM-based XO-1.75:
A comment on the wiki page of the photo refers to this as a grid style keyboard. As you can see the gaps between the individual keys are now protected with a plastic cover. This should really go a long way in reducing the number of broken keyboards and the associated maintenance hassles and expenses.
It will also be interesting to see whether OLPC will make these keyboards - or rather the whole bottom portion of the XO - available to deployments. That would allow them to gradually replace the machines hit by this issue rather than having to purchase XO-1.75s. Though of course one question here is at what cost such a replacement (parts plus shipping/handling and actually repair procedure) would be available to Uruguay and other projects.
In any case it's great to see this improvement become standard for future XO-1.75 owners.
Resumen en español: Una fuente de frustración durante mi visita en 2010 de los proyectos en Uruguay, Paraguay y el Perú fue el número alto de alumnos que que tenían XOs con un teclado roto. Por esto me emocioné mucho cuando vi la foto arriba que muestra el diseño nuevo del teclado que será la opción por defecto en los XO-1.75. Ahora el espacio entre las teclas individuales esta protegido por una cubierta de plástico que debería ayudar mucho en mejorar la resistencia del teclado.
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Categories: OLPC
Asia Report: India Sees 52 Percent Rise in Investments
The year 2011 may be remembered in clean energy circles as the moment when India became a major player across several industries.
Categories: Water
Asia Report: India Sees 52 Percent Rise in Investments
The year 2011 may be remembered in clean energy circles as the moment when India became a major player across several industries.
Categories: Wind
