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Comment LEDs (Score 4, Informative) 278

I converted most of my bulbs in my house to Philips LED lamps from Home Depot. I had a few teething problems, with some of the bulbs initially. Some of their earlier floodlights were around a single bright LED, and it was annoying to have in an angled fixture. I took it back to the store, and found newer ones that were built around a multiple LEDs and had a diffuser. Some bulbs are still incandescents, mostly because I haven't been able to find a satisfactory replacement. These are small chandelier lights (that would need at least 40 watt equivalent output) and the three-way bulbs on the night stand (Cree just released them). Products are available, but both require shipping from the States. I'll wait a little longer before making the complete switch.
Television

Submission + - TiVo announces DVR-SuperAdvance

mark0 writes: TiVo has announced the TiVo DVR-SuperAdvance. The PC World review says, 'Familiar TiVo interface; DVR can record not-yet-broadcast programming; potentially useful as a wagering aid,' though, '[it is] expensive; access to programming is limited; footage is displayed in standard definition only.'
Math

Ramanujian's Deathbed Problem Cracked 205

Jake's Mom sends word of the serendipitous solution to a decades-old mathematical mystery. Researchers from the University of Wisconsin have unraveled a major number theory puzzle left at the death of one of the twentieth century's greatest mathematicians, Srinivasa Ramanujan. From the press release: "Mathematicians have finally laid to rest the legendary mystery surrounding an elusive group of numerical expressions known as the 'mock theta functions.' Number theorists have struggled to understand the functions ever since... Ramanujan first alluded to them in a letter written [to G. H. Hardy] on his deathbed, in 1920. Now, using mathematical techniques that emerged well after Ramanujan's death, two number theorists at the University of Wisconsin-Madison have pieced together an explanatory framework that for the first time illustrates what mock theta functions are, and exactly how to derive them."

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