By timothy from Slashdot's we'd-like-to-know-in-middle-texas-too department
An anonymous reader writes "I live in the Middle East. Summer temperatures occasionally reach 60C/140F, well over the operating specs for most consumer tech. Quite a number of work and residential compounds are secured, prohibiting everything from computers to cameras to phones to USB sticks to car remote controls. When I know that I'm visiting one of those compounds, I end up leaving all the tech I can at home or in the office, and only bringing a cell phone, and leaving it in my car. However, "only a cell phone" has quickly morphed into "only two cell phones, a car MP3 player and remote, and .... ooh, shiny... a new tablet... and an electric razor just in case I have to touch up before a party in a compound." I'm wondering what kind of technologies we have for keeping all this tech cool for four hours in the car. Overnight events might last longer, but won't be as hot."Read Replies (0)
By Unknown Lamer from Slashdot's code-freedom-day department
puddingebola writes "HP done gone and released the open source version of webOS. From the article: 'Gone are the days of HP's TouchPad and Palm ambitions, but HP is moving ahead with its plans to make webOS, its beleaguered mobile operating system, live on as open-source supported platform. Today it's launching the beta release... The release will have 54 components available as open source, the blog says, some 450,000 lines of code under the Apache 2.0 license.'"
There are two flavors: an OpenEmbedded
based version for targeting mobile device (kudos there!), and a desktop build
which runs Luna
as an application on the desktop (how long until someone writes a rootless version?). More info at the Open webOS project overview
page, with source code over at GitHubRead Replies (0)
By Unknown Lamer from Slashdot's warning-electro-bracelet-may-explode department
writes with news on work toward flexible batteries good enough for Real World use (you have to power this flexible electrionics somehow). From the article: "LG Chem ... has devised a cable-type lithium-ion battery that's just a few millimeters in diameter, and is flexible enough to be tied in knots, worn as a bracelet, or woven into textiles. The underlying chemistry of the cable-type battery is the same as the lithium-ion battery in your smartphone or laptop — there's an anode, a lithium cobalt oxide (LCO) cathode, an electrolyte — but instead of being laminated together in layers, they're twisted into a hollow, flexible, spring-like helix. flexible batteries have been created before — but they've all just standard, flat, laminated batteries made from sub-optimum materials, such as polymers. As such, as they have very low energy density, and they're only bendy in the same way that a thin sheet of plastic is bendy. LG Chem's cable-type batteries have the same voltage and energy density as your smartphone battery — but they're thin and highly flexible to boot. LG Chem has already powered an iPod Shuffle for 10 hours using a knotted 25cm length of cable-type battery."
< article continued at Slashdot
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By samzenpus from Slashdot's read-all-about-it department
MassDosage writes "After nearly 15 years or of writing code professionally it was refreshing to take a figurative step back and read a book aimed at people getting started with computer programming. As the title suggests, Think Like A Programmer tries to get to the core of the special way that good programmers think and how, when faced with large and complex problems, they successfully churn out software to solve these challenges in elegant and creative ways. The author has taught computer science for about as long as I've been programming and this shows in his writing. He has clearly seen a lot of different people progress from newbie programmers to craftsmen (and craftswomen) and has managed to distill a lot of what makes this possible in what is a clear, well-written and insightful book."
Read below for the rest of Mass Dosage's review. Think Like A Programmer
author V. Anton Spraul
publisher No Starch Press
reviewer Mass Dosage
summary An Introduction to Creative Problem SolvingRead Replies (0)