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Increased Bandwidth Irrelevant? 366

halbert writes "ArsTechnica has a story about AT&T COO Randall Stephenson telling folks that there is 'no discernable difference' between AT&T's 1.5 Mbps service and Comcast's 6 Mbps, because the backbone is slowing everything down. The main argument from the article is that fiber to the home is not necessary. How about letting the consumer decide that?" From the article: "This is a direct response to the criticism that AT&T has suffered for deploying a fiber optic network that reaches only to the local node, not directly into a customer's home--which means that the 'last mile' connection is still copper wire. Verizon, by contrast, is deploying fiber directly into the home, making for much higher speeds. AT&T argues that its model is cheaper, faster to deploy, and just as capable as Verizon's, which currently uses much of its massive bandwidth to distribute RF TV channels."

First Steps Toward Artificial Gravity 470

CompaniaHill writes "Have scientists been able to artificially generate a gravitational field? Researchers at the European Space Agency believe so. "Small acceleration sensors placed at different locations close to the spinning superconductor, which has to be accelerated for the effect to be noticeable, recorded an acceleration field outside the superconductor that appears to be produced by gravitomagnetism. This experiment is the gravitational analogue of Faraday's electromagnetic induction experiment in 1831." The effect is very small, so don't expect to see it used in spacecraft any time soon. But the effect is still many times larger than the predictions of Einstein's theories. "If confirmed, this would be a major breakthrough," says [Austrian researcher Martin] Tajmar. "It opens up a new means of investigating general relativity and it consequences in the quantum world.""

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