Anyone playing in the "Web 2.0" domain, even if non-technical, has likely heard of such essential components of the Web applications style as AJAX and JSON. The 'J' in these acronyms stands for JavaScript, on which these standards are built. So the strengths and weaknesses of JavaScript are directly related to what can be built in the common Web 2.0 style, and therefore what business ideas can be implemented. Now there's another JavaScript related technology coming along quietly but quickly, and so far little noticed outside of developers' circles. It is called Caja, and it may have a major impact on what can and can't be accomplished by JavaScript-based Web 2.0 sites.

Pay Attention To Caja

George Johnson reviews "The Ten Most Beautiful Experiments":

Beauty is truth, Keats declared, and truth beauty. Many prominent scientists have wished a version of this famous equation described their own work. The British quantum theorist Paul Dirac, for one, called his career “a search for pretty mathematics.” Most scientific aesthetes gaze fondly upon equations or arrangements of facts. A few, like the science writer George Johnson, also see beauty in the act of research. Johnson’s new book, “The Ten Most Beautiful Experiments,” is an appealing account of important scientific discoveries to which a variation of Keats applies: occasionally, beauty yields truth.

Pure Science

Rising oil prices and concerns about energy security and climate change are pressuring automakers to produce vehicles with better fuel economy and reduced greenhouse-gas emissions. This Policy Insight discusses four innovations to fuel and engine technology that automakers will be developing over the next decade: gasoline-electric hybrid technology, advanced diesel technology, vehicles powered by a blend of ethanol and gasoline, and improvements to the traditional gasoline engine. Keefe, Griffin, and Graham highlight the advantages and disadvantages of each, drawing on a benefit-cost analysis in which they calculate the value of the three alternative technologies from a societal perspective, taking into account technology costs, fuel savings, performance benefits, pollution estimates, reductions in oil use, the cost of greenhouse-gas emissions, and other factors. They conclude that advanced diesels and gasoline-electric hybrids have a promising future but that policymakers appear to be favoring ethanol-fueled vehicles through a variety of regulations and tax subsidies.

New Engines and Fuels for Cars and Light Trucks

Nothing about the founders seems as interesting or as timely to us, 200 years and more farther on, as their religious views — who, if Anyone, they worshiped, how they marked the boundaries of church and state. As a Washington biographer, I have been assured, during the Q. and A. periods after talks, that George Washington saw the Virgin Mary at Valley Forge and converted to Roman Catholicism on his deathbed (why wait, if he had seen the Virgin 21 years earlier?). I was also once asked if he was an “illuminated Freemason”; I sped away from that question as fast as possible. Whether in legal briefs or op-ed articles, we are as passionate about religion as the founders were. Unfortunately, our passions make for a lot of sloppy and willful historical thinking and writing. In “Founding Faith,” Steven Waldman, a veteran journalist and co-founder of Beliefnet.com, a religious Web site, surveys the convictions and legacy of the founders clearly and fairly, with a light touch but a careful eye.

Religious Intent

Johnny Lee demos his amazing Wii Remote hacks, bending the $40 game part so it powers a digital whiteboard, a multitouch display and a head-mounted 3-D viewer. A multi-ovation demo from TED2008.

Johnny Lee's Wii Remote hacks

Need a Glock or an Uzi? Sample the wares at a Middle Eastern arms bazaar.

A Foreign Policy Photo Essay.

Where the World Shops for Guns

P.J. O'Rourke:

Busy times for us sinners--there are now an additional Seven Deadly Sins.

Seven New Deadly Sins

A photoblog of the abandoned American West.

Lost America: Roadside Gallery

Sheela Reddy interviews Jhumpa Lahiri:

The Pulitzer winner talks about the two great loves of her life: her children and her writing. 'With young children, the days can be rather mercurial.'

'I Don't Think Of Short Stories As A Secondary Option, Ever'

Aging acts account for most of the music industry's live performance revenue. What happens when these acts are gone?

The Show Must Go On