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Comment DC is more dangerous (Score 5, Insightful) 466

this experiment is fine if you're doing little LED lights and laptops, but if you're running something like air conditioning or a washing machine you're building a fire hazard and a mortality risk

the decision to use AC over DC was not random nor taken lightly, there are many factors involved (heck, it was a major engineering, corporate, and PR war between Edison and Westinghouse: https://en.wikipedia.org/wiki/... ), but the right decision was made

for our modern world where some people only care about their laptop and smartphone, it does indeed seem silly and wasteful to convert to AC then back to DC, especially if you've ever tried charging electronics in a car. but there are of course many other uses for electricity, and the navel gazing small electronics crowd is but a minor topic

but i do see a time in the future as more people use local solar and other renewables, that a small DC subsystem is made available in the house for electronics like computers

Submission + - Amazon Cuts Down On Sharing Prime (techcrunch.com)

An anonymous reader writes: Tech Crunch reports that Amazon quietly rolled out changes to how their Prime subscriptions can be shared. The good news is that existing members aren't losing their current sharing setups. It used to be that Amazon would Prime subscribers share free shipping and a few other benefits with up to four other "household" members, with little restriction on what counted as a "household." The bad news: as of last weekend, Amazon now limits sharing to one other adult and four "child" profiles. The adults will need to authorize each other to use credit/debit cards associated with the account. Amazon didn't make any announcement about this, so it's unknown how long existing Prime shares will stay in effect. They could disappear when the subscription is up for renewal, or earlier if Amazon decides to crack down on it.
Power

Giving Up Alternating Current 466

An anonymous reader writes: Yesterday we discussed Soylent, the artificial food substitute created by Rob Rhinehart and his team. As it turns out, this isn't Rhinehart's only unusual sustainability project. In a new post, he explains how he gave up on alternating current — a tough proposition for anyone living in the U.S. and still interested in using all sorts of modern technology. Rhinehart says, "Most power in the US is generated by burning coal, immediately squandering 67% of its energy, then run through a steam turbine, losing another 50%, then sent across transmission lines, losing another 5%, then to charge a DC device like a cell phone another 50% is lost in conversion. This means for 100 watts of coal or oil burned my phone gets a mere 16."

The biggest hindrance was the kitchen. As you might expect for the creator of Soylent, he doesn't cook, and was able to get rid of almost all kitchen appliances because of that. He uses a butane stove for hot beverages. He powers a small computer off batteries, which get their energy from solar panels. For intensive tasks, he remotes to more powerful machines. He re-wired his apartment's LED lighting to run off direct current. Have any of you made similar changes? How much of an effect does this really have?

Submission + - Using Math To Tune a Video Game's Economy (arstechnica.com)

An anonymous reader writes: With the shipping deadline approaching for The Witcher 3, designer Matthew Steinke knew there was a big part of the game still missing: its economy. A game's economy is one of the things that can make or break immersion — you want collection and rewards to feel progressive and meaningful. Making items to expensive gives the game a grindy feel, while making them too cheap makes progression trivial. At the Game Developers Conference underway in Germany, Steinke explained his solution.

"Steinke created a formula that calculated attributes like how much damage, defence, or healing that each item provided, and he placed them into an overall combat rating could be used to rank other items in the system. ... Steinke set about blending the sub-categories into nine generalised categories, allowing him to determine the final weighting for damage and the range of prices for each item. To test if it all worked, he used polynomial least squares (a form of mathematical statistics) to chart each category's price progression. The resultant curve (pictured below) showed the rate at which spending was increasing as the quality of each item approached the category's ceiling value."

Comment Wait a sec, even Mohammed? (Score 2) 121

You can insult any single historical figure that you like on Facebook except one: Turkey's founder Mustafa Kemal 'Ataturk'

I would think that Turkey has something to say about Mohammed as well, considering they seized copies of Charlie Hebdo's survival issue due to the horribly, horribly offensive image of a crying prophet holding up a sign saying "All is Forgiven". (Aside: This really goes to show how deluded a lot of people are on these issues. If your scale is calibrated such that Turkey is deemed "secular" then a place like Texas is going to come out as "ultra-secular / atheistic")

Also, is this censorship happening on only Turkey's localized Facebook or is it on English Facebook as well? TFS doesn't make this clear, and although it's impossible to say it without coming off as a little smug ("I don't own a TV!"), I don't actually have a Facebook account so I can't read TFA.

Submission + - Giving up alternating current (arstechnica.com)

An anonymous reader writes: Yesterday we discussed Soylent, the artificial food substitute created by Rob Rhinehart and his team. As it turns out, this isn't Rhinehart's only unusual sustainability project. In an op-ed at Ars, he explains how he gave up on alternating current — a tough proposition for anyone living in the U.S. and still interested in using all sorts of modern technology. Rhinehart says, "Most power in the US is generated by burning coal, immediately squandering 67% of its energy, then run through a steam turbine, losing another 50%, then sent across transmission lines, losing another 5%, then to charge a DC device like a cell phone another 50% is lost in conversion. This means for 100 watts of coal or oil burned my phone gets a mere 16."

The biggest hindrance was the kitchen. As you might expect for the creator of Soylent, he doesn't cook, and was able to get rid of almost all kitchen appliances because of that. He uses a butane stove for hot beverages. He powers a small computer off batteries, which get their energy from solar panels. For intensive tasks, he remotes to more powerful machines. He re-wired his apartment's LED lighting to run off direct current. Have any of you made similar changes? How much of an effect does this really have?

Printer

Epson Is Trying To Kill the Printer Ink Cartridge 223

An anonymous reader writes: Inkjet printer cartridges have been the bane of many small businesses and home offices for decades. It's interesting, then, that Epson is trying something new: next month, they're launching a new line of printers that come with small tanks of ink, instead of cartridges. The tanks will be refilled using bottles of ink. They're reversing the economics, here: the printer itself will be more expensive, but the refills will be much cheaper. Early reports claim you'll be spending a tenth as much on ink as you were before, but we'll see how that shakes out. The Bloomberg article makes a good point: it's never been easier to not print things. The printer industry needs to innovate if it wants us to keep churning out printed documents, and this may be the first big step.

Comment Re:When guns are outlawed... (Score 3, Interesting) 62

Eh, it's kind of like your Android phone not making root readily available. It's there to protect the unwashed masses from themselves. Serious hobbyists (or bad actors) don't have much difficulty getting around the restrictions. I don't think anyone seriously thinks that "geofencing" software will keep a terrorist from flying a drone into restricted airspace. What it will do is keep the "hold my beer and watch this!" crowd from flying their drone into the glide path of a 747.

Submission + - Epson Trying To Kill the Printer Ink Cartridge (wsj.com)

An anonymous reader writes: Inkjet printer cartridges have been the bane of many small business es and home offices for decades. It's interesting, then, that Epson is trying something new: next month, they're launching a new line of printers that come with small tanks of ink, instead of cartridges. The tanks will be refilled using bottles of ink. They're reversing the economics, here: the printer itself will be more expensive, but the refills will be much cheaper. Early reports claim you'll be spending a tenth as much on ink as you were before, but we'll see how that shakes out. The Bloomberg article makes a good point: it's never been easier to not print things. The printer industry needs to innovate if it wants us to keep churning out printed documents, and this may be the first big step.
Government

FAA Has Approved More Than 1,000 Drone Exemptions 62

coondoggie writes: The Federal Aviation Administration today said it has issued 1,008 exemptions to businesses wanting to fly unmanned aircraft in the national airspace. Such small drones have been on the bad side of the news in the past few days: there have been at least three complaints about the diminutive aircraft flying near the flight path of JFK airport in New York. All three of the flights landed safely but the events prompted New York Senator Charles Schumer to call for "tougher FAA rules on drones," as well as geofencing software that could prohibit a done from flying higher than 500 feet, and keep it two miles away from any airport or sensitive area.

Comment Re:Remember when the Internet was uncontrolled? (Score 3, Insightful) 121

remember, Facebook != Internet

It is to many people, particularly those that came of age after the internet went mainstream, as well as those that are older and less technically adept.

Like it or hate it, Facebook is the Internet to a lot of people. Try having a brick and mortar business these days without a presence on Facebook. There are countless people that will go looking for something on Facebook long before they think of a simple Google search. Why do you think Google has invested so much effort into social media despite their many failures? They're terrified of people like this.

At the rate things are going the "dark web" isn't going to be warez, criminals, and black hats; it's going to be anything that's not on Facebook and Twitter.

Comment Ataturk was a punk (Score 2) 121

I was only in Istanbul once, and only long enough to have dinner, fall asleep and run to the airport. But my Serbian monther-in-law has some very strong opinions about Turks. She's usually such a sweet little old lady, but don't get her started on the Turks. I mean, the Ottoman Empire was gone before she was born, but damn, she's still mad about something.

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