An anonymous reader sends a report of a bug in Steam’s Linux client that will accidentally wipe all of a user’s files if they move their Steam folder. According to the bug report: I launched steam. It did not launch, it offered to let me browse, and still could not find it when I pointed to the new location. Steam crashed. I restarted it. It re-installed itself and everything looked great. Until I looked and saw that steam had apparently deleted everything owned by my user recursively from the root directory. Including my 3tb external drive I back everything up to that was mounted under /media. Another user reported a similar problem — losing his home directory — and problems with the script were found: at some point, the Steam script sets $STEAMROOT as the directory containing all Steam’s data, then runs rm -rf “$STEAMROOT/”* later on. If Steam has been moved, $STEAMROOT returns as empty, resulting in rm -rf “/”* which causes the unexpected deletion. Read more of this story at Slashdot.
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Steam For Linux Bug Wipes Out All of a User’s Files
There’s no point in keeping a stash of emergency flashlights around your home if the batteries inside them just end up getting stolen for TV remotes and the kids’ toys. So the folks who created the original LUCI, a dirt-cheap inflatable solar-powered rechargeable lantern , have tweaked its design for the new Luci EMRG so that it produces a more intense focused beam and can now double as an emergency flashlight. Read more… 
dcblogs writes: The Internet of Things (IoT) may be more significant in reshaping the competitive landscape than the arrival of the Internet. Its productivity potential is so powerful it will deliver a new era of prosperity. That’s the argument put forth by Michael Porter, an economist at the Harvard Business School and James Heppelmann, president and CEO of PTC, in a recent Harvard Business Review essay. PTC is a product design software firm that recently acquired machine-to-machine firm Axeda Corp. In the past 50 years, IT has delivered two major transformations or “waves, ” as the authors describe it. The first came in the 1960s and 1970s, with IT-enabled process automation, computer-aided design and manufacturing resource planning. The second was the Internet and everything it delivered. The third is IoT. That’s a strikingly sweeping claim and there will no doubt be contrarians to Porter and Heppelmann’s view. But what analysts are clear about is that IoT development today is at an early stage, perhaps at a point similar to 1995, the same year Amazon and eBay went online, followed by Netflix in 1997 and Google in 1998. People understood the trend at the time, but the big picture was still out of focus. Read more of this story at Slashdot. 
Lucas123 writes: The cost of rooftop solar-powered electricity will be on par with prices of coal-powered energy and other conventional sources in all 50 U.S. states in just two years, a leap from today where PV energy has price parity in only 10 states, according to Deutsche Bank’s leading solar industry analyst. The sharp decline in solar energy costs is the result of increased economies of scale leading to cheaper photovoltaic panels, new leasing models and declining installation costs, Deutsche Bank’s Vishal Shah stated in a recent report. The cost of solar-generated electricity in the top 10 states for capacity ranges from 11-15 cents per kilowatt hour (c/kWh), compared to the retail electricity price of 11-37 c/kWh. Amit Ronen, a former Congressional staffer behind legislation that created an investment tax credit for solar installations, said one of the only impediments to decreasing solar electricity prices are fees proposed by utilities on customers who install solar and take advantage of net metering, or the ability to sell excess power back to utilities. Read more of this story at Slashdot. 
The oldest lightbulb in continuous use was installed before the Wright Brothers took flight, is 110 years old, and is still as beautiful as the day she was born. In fact, it’s likely the oldest electrical device in continuous use period . Take a moment and consider just how much the world has changed around this one, singular device. Read more… 
Amazon Echo is a speaker that has a voice assistant built in. If you ask it a question its got an answer. If you tell it to do stuff, it complies. Well, this is different. Read more… 
jenningsthecat writes: DARPA’s Terahertz Electronics program has created “the fastest solid-state amplifier integrated circuit ever measured.” The Terahertz Monolithic Integrated Circuit (TMIC), boasts a gain of 9dB — previously unheard of for a monolithic device in this frequency range. Plus, the status of “fastest” has been certified by Guinness — seriously! (‘Cause you might not trust DARPA, but you gotta trust Guinness — right?). In related news, DARPA has also created a micro-machined vacuum power amplifier operating at 850 GHz, or 0.85 THz. Read more of this story at Slashdot.