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Math

Submission + - The worst case scenario (blogspot.com)

mquaes writes: "Reasoning with extremes is a particularly useful strategy to solve some problems. It can also be seen as a “worst case scenario” strategy. The best way to appreciate this kind of thinking is through example. So let’s begin to appreciate some really nice reasoning strategies."
NASA

Submission + - U.S. in danger of losing earth-observing satellite capability (wired.com)

crazyjj writes: As reported in Wired, a recent National Research Council report indicates a growing concern for NASA, the NOAA, and USGS. While there are currently 22 Earth-observing satellites in orbit, this number is expected to drop to as low as six by the year 2020. The U.S. relies on this network of satellites for weather forecasting, climate change data, and important geologic and oceanographic information.

As with most things space and NASA these days, the root cause is funding cuts. The program to maintain this network of satellites was funded at $2 billion as recently as 2002, but has since been scaled back to $1.3 billion at present, with only two replacement satellites having definite launch dates.

Earth

Submission + - Philips releases 100W-equivalent LED bulb, runs on just 23 watts (extremetech.com) 1

MrSeb writes: "The Light Fair convention kicks off in Las Vegas this week so there will be any number of related announcements coming soon. Lighting giant Philips is starting things off early with the announcement of their 100W-equivalent LED bulb, the AmbientLED 23W. The model produces 1700 lumens, putting it at a very respectable 73.9 lm/W. The unveiling comes shortly after Philips’ L Prize bulb was made available to consumers. That bulb currently sells for about $60 and is a more efficient light source, capable of 94 lm/W. The two use similar designs, for example both take advantage of remote phosphor, but the AmbientLED 23W (it will be called the EnduraLED in non-consumer applications) is brighter and lacking in some of the performance characteristics of the L Prize winner, including luminous efficiency and color accuracy. Philips’ 100W-equivalent bulb will be available some time in the fourth quarter. Pricing has yet to be announced, but it will likely be well over $30."

Comment Re:why phase out DVI? (Score 2) 704

>HDMI is HDMI .. you plug it in and not worry about whether you are using the right mode / cable for your setup.

Wait, do you mean 1.0, 1.1, 1.2, 1.2a, 1.3, 1.3a, 1.3b, or 1.4 HDMI? and type A, B, C, D, or E? Standard HDMI cable? Standard with Ethernet? Automotive? High Speed? High Speed with Ethernet?

http://en.wikipedia.org/wiki/HDMI
http://www.practical-home-theater-guide.com/hdmi-cables.html

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