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Comment Re:Massive farms of artificial trees... (Score 2) 368

There is a typo in the article summary. The polymer material will reportedly absorb 1.71 mmole (millimoles = 1 x 10^-3^ moles) of CO_2_ per gram of the polymer. A lot better than nmoles (nanomoles = 1 x 10^-9^ moles), but your point still stands, they'll have to do a lot better CO_2_ per gram of polymer to have any atmospheric impact. Also, one mole of CO_2_ has a mass of 44.01 grams, not 75.68.

Games

The Struggle For Private Game Servers 125

A story at the BBC takes a look at the use of private game servers for games that tend not to allow them. While most gamers are happy to let companies like Blizzard and NCSoft administer the servers that host their MMORPGs, others want different rules, a cheaper way to play, or the technical challenge of setting up their own. A South African player called Hendrick put up his own WoW server because the game "wasn't available in the country at the time." A 21-year-old Swede created a server called Epilogue, which "had strict codes of conduct and rules, as well as a high degree of customized content (such as new currency, methods of earning experience, the ability to construct buildings and hire non-player characters, plus 'permanent' player death) unavailable in the retail version of the game." The game companies make an effort to quash these servers when they can, though it's frequently more trouble that it's worth. An NCSoft representative referenced the "growing menace" of IP theft, and a Blizzard spokesperson said,"We also have a responsibility to our players to ensure the integrity and reliability of their World of Warcraft gaming experience and that responsibility compels us to protect our rights."
Businesses

Inside Factory China 135

blackbearnh writes "While China is attempting to pull its industry up out of mere manufacturing mode, for now the country is the production workhorse of the consumer electronics industry. Almost anything you pick up at a Best Buy first breathed life across the Pacific Ocean. But what is it like to shepherd a product through the design and production process? Andrew 'bunnie' Huang has done just that with the Chumby, a new Internet appliance. In an interview with O'Reilly Radar, he talks about the logistical and moral issues involved with manufacturing in China, as well as his take on the consumer's right to hack the hardware they purchase."

Comment Re:Consumer Reports (Score 5, Informative) 552

The summer blend is simply a formulation of "gasoline" that has approximately the correct vapor pressure for the high temperatures found in the summer months.

For gasoline to burn, it needs to get into the gas phase. For this to occur at the rate necessary to support combusion in the engine of a car, the mixture known as gas must have a sufficiently high vapor pressure. Since the vapor pressure of any liquid increases as the temperature goes up, gas must be formulated to have a "high" vapor pressure in the cold winter months. In the summer when the temperature is high, "gas" must be formulated such that the vapor pressure of the mixture isn't too high such that the gas evaporates before it enters the cylinders of the engine.

Adding ethanol to gasoline is one way to accomplish this. Ethanol molecules have strong intermolecular attractions (forces that bind neighboring molecules together) due to hydrogen bonding. As a consequence, mixtures with ethanol will have a lower vapor pressure than mixtures without ethanol at the same temperature.

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