Donaldson Run

Monday, July 22, 2013

Kenmore Principal Dr. Word Testifies before FCC on importance of Erate & Info Tech for students @apsVirginia

Monday, July 15, 2013

Thinking of a Portable Generator? Think again says NIST

Photo by Renegade Motors (cc)

Thinking of a portable generator in order to survive the slings and arrows of outrageous Washington, D.C. weather?? You might want to think again, says US NIST. This is one of those situations where the cure is potentially worse than the problem - with the carbon dioxide fumes produced by these generators causing significant deaths and sicknesses.

According to an article in Forbes, Power Outages are Bad; Portable Generators are Worse:

Portable gas generators emit large amounts of an invisible, odorless gas called carbon monoxide (CO) – more than an idling automobile. Operating generators in any enclosed space is a virtual death sentence. Indeed, even in partially-enclosed or ventilated spaces, enough CO can accumulate in the air to poison anyone who breathes it. CO can kill within minutes.

NIST recently released its new study Residential Carbon Monoxide Exposure due to Indoor Generator Operation: Effects of Source Location and Emission Rate. Here's the abstract:

The U.S. Consumer Product Safety Commission (CPSC) and others are concerned about the hazard of acute residential carbon monoxide (CO) exposures from portable gasoline powered generators that can result in death or serious and/or lasting adverse health effects in exposed individuals. As of June 2010, CPSC databases contain records of 542 deaths from CO poisoning associated with consumer use of generators in the period of 1999 through 2009, with nearly two-thirds of those occurring between 2005 and 2009 [1]. Typically, these deaths occur when consumers use a generator in an enclosed or partially enclosed space or outdoors near an open door, window or vent. While avoiding the operation of such generators in or near a home is expected to reduce indoor CO exposures significantly, it may not be realistic to expect such usage to be eliminated completely. Another means of reducing these exposures would be to decrease the amount of CO emitted from these devices. In order to support health-based analyses of potential CO emission limits, a computer simulation study was conducted to evaluate indoor CO exposures as a function of generator source location and CO emission rate. These simulations employed the multizone airflow and contaminant transport model CONTAM, which was applied to a collection of 87 dwellings that are representative of the U.S. housing stock. A total of almost one hundred thousand individual 24-hour simulations were conducted. This report presents the simulation results in terms of the maximum levels of carboxyhemoglobin that would be experienced by occupants in the occupied portions of the dwellings as a function of CO emission rate for each indoor source location.

Bottom line? “Regardless of housing type or location, generators that release as little as 27 grams of CO per hour continuously for 18 hours cause 80 percent of the modeled cases to result in an exposure predicted to reach dangerous levels."

Power outages in Northern Virginia rarely last that long. If you want a good solution that wont kill you, consider a universal power supply battery backup system - something that will provide you a little electricity for a short period of time. Also consider a solar power generator that can be used to recharge phones and other small devices. Of course my favorite is a bicycle electric generator.

Final thought: If you must buy a generator - dont be a schmuck. Dont drop the generator right on your property line next to your neighbor. All the health issues listed above, you will be imposing on your neighbor. Many of these generators are very noisy (the quiet ones are much more expensive). And finally, you may be in violation of local zoning by dropping the generator next to the property line.

Wednesday, July 3, 2013

Arlington Homeboy Remy Does History: Hamilton & Burr: The Duel

Almost as good as those short CBS educational videos we grew up with. Happy Celebration of our Nation's History!

So glad we resolve our differences in a civilize manner now. OH!, hey! Judge Judy is just about to come one!

Friday, June 7, 2013

Please Support @Phoenixbikes During the DoMore24 Campaign (Today) #Arlingtonva

"The DoMore24 campaign is more than just one day of fundraising…it’s the next generation of online giving. We are creating a local movement that leverages the power of the crowd to support our region’s nonprofit organizations through focused, online giving that is directed at creating maximum impact. We have built an innovative platform to allow donors to track the progress of the campaign, see who else is participating and watch the effect of their contributions in real time. Do More 24 is funded and powered by United Way of the National Capital Area and is graciously supported by a group of committed community and corporate sponsors." Contribute today (due to technical difficulties, the campaign was extended till today)!

"Phoenix Bikes has two primary operations –a youth development education program and a full-service retail bike shop and. Both make up our commitment to the economic, social, and environmental health of the D.C. Metro region.

Through the use of bike repair, mechanics, and sales, we provide local youth with real-world skills and education that will better prepare them for the future.

Through our storefront, we provide the local D.C. community with affordable, refurbished bikes and repair services that help the environment, the recipient and local youth. As the largest used bike and parts shop in the D.C. Metro area, sale proceeds from our shop support the development of the organization and fund ongoing youth education programs with Phoenix Bikes.

Greatly assisted by our youth participants and volunteers, we believe that our shop provides an unparalleled learning exercise for the development of young leaders, within an immersive, real-world retail operation, providing the opportunity for:

Learning – Youth in the shop take on new challenges, use both academic and practical skills, acquire analytical problem solving skills and engage in operations management.

Healthy Peer Interaction – Learning to work together as a team, participants gain confidence, appreciate diversity, and develop healthy, long-term friendships.

Community Service – Youth learn to plan, develop, and complete a finished product from start to finish – with its sale providing a direct impact on local neighborhoods.

Fun – Our program is meant to build friendships and promote a healthy, active lifestyle among participants.