That Facebook Copyright Notice Is Worthless

There’s a copyright notice people have been posting on Facebook over the past couple of days similar to privacy notice that made the rounds several months ago. Before you copy paste it on your own profile, stop. It’s bogus and unenforceable . More »

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That Facebook Copyright Notice Is Worthless

Hack a Universal Remote to Control Your Lights

Do you have one of those universal remotes laying around that you can’t use with all your equipment? Over on the hacking blog Handya, Andy shows off how to hack a light switch so you can control it with the remote you already have sitting around. More »

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Hack a Universal Remote to Control Your Lights

Anonymous Destroys Israel By Taking Down Hundreds of Websites and Leaking Emails and Passwords

It looks like Anonymous followed up with its threat of digitally attacking Israel for taking military action in the Gaza strip. They’ve knocked down websites, deleted databases and have leaked e-mail addresses and passwords. It’s a whopping takedown. More »

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Anonymous Destroys Israel By Taking Down Hundreds of Websites and Leaking Emails and Passwords

The Most Grotesque Fanless CPU Cooler I’ve Ever Seen

Official description: “The Zalman CNPS FX100-Cube is fanless and noiseless CPU cooler, which does not draw dust or generate vibration due to its passive operation.” Unofficial description: LOOK AT THIS FREAKING MONSTER HEATSINK! More »

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The Most Grotesque Fanless CPU Cooler I’ve Ever Seen

Surprising News About Bicycle-Powered Electricity Generators

That hourglass-shaped device is the PowerPac, an energy storage device meant to be powered by a human on a stationary bicycle. Conceived of by South African design firm Ideso , the PowerPac won a Red Dot Design Award in the “Best of the Best” category. “Our aim was to create an aesthetically pleasing, user-friendly and functional design that marries the fluidity of cycling with dynamic power generation,” says Ideso MD, Marc Ruwiel. “It can be used by avid cyclists who can reduce CO2 emissions and generate their own electrical power, while enjoying a good workout at home.” I’m all for people-powered electricity generators, and I would’ve loved to have one of these during the recent blackout, but something struck me in the copy: “…An average cyclist could fully charge the battery from empty with 80 minutes of cycling and 132Wh of charge/potential energy can be stored in the battery.” The “Wh” designation stands for watt-hour , and “132Wh” means you could power a 132-watt device for 1 hour. For 80 minutes of cycling to yield, say, just over two hours of light from a 60-watt bulb sounds like a low yield, doesn’t it? My first thought was, can that be right? I did a little digging, and here’s what I found. It turns out hooking a bicycle up to something that directly powers a mechanical device is a fairly efficient way to generate energy. Rig a bicycle up to drive a sewing machine or a hand mixer and you get decent bang for your buck. But the second you get batteries and electricity involved, the efficiency drops way, way off. An article in Low-tech Magazine called ” Bike powered electricity generators are not sustainable ” explains why: …Generating electricity is far from the most efficient way to apply pedal power, due to the internal energy losses in the battery, the battery management system, other electronic parts, and the motor/generator. These energy losses add up quickly: 10 to 35 percent in the battery, 10 to 20 percent in the motor/generator and 5 to 15 percent in the converter (which converts direct current to alternate current). The energy loss in the voltage regulator (or DC to DC converter, which prevents you from blowing up the battery) is about 25 percent. This means that the total energy loss in a pedal powered generator will be 42 to 67.5 percent…. And it even turns out that the bicycle itself has mechanical inefficiencies that suck up more energy: (more…)

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Surprising News About Bicycle-Powered Electricity Generators

Super-Cellophane Can Keep Veggies Fresh for Months

A Japanese company has developed an advanced plastic cellophane that promises to vastly extend the shelf life of fresh vegetables and fruit. By preventing the produce from losing moisture and eliminating excess CO2 buildup, Belle Green Wise’s new Aura Pack has been found to keep some fruits fresh for a whopping three to four months. More »

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Super-Cellophane Can Keep Veggies Fresh for Months

Google Lost the Nexus 4 in a Bar

In a very, heh, familiar story , Google apparently lost the upcoming Nexus 4 in a bar last month. Yes, the LG Nexus phone we expect to be unveiled next week . Yes, the phone that’s probably going to take the crown as the best Android phone available when it comes out. More »

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Google Lost the Nexus 4 in a Bar

U.S. Soldiers’ Combat Invention Inspired by “Predator” Movie

Medium and heavy machine guns are “crew-served” weapons, requiring two and even three soldiers working together to operate it at maximum efficiency. While it’s one guy pulling the trigger, the other two carry and feed the bulky ammunition belts into the weapon. Having to rapidly re-position the weapon therefore brings challenges. According to an article in Soldiers magazine , after a 2.5-hour firefight in Afghanistan, an American infantry combat team started discussing “how three-man teams manning crew-served weapons struggled to stay together over difficult terrain in fluid battles.” It goes without saying that a machine gunner separated from his ammo is not good. It would be better if the gunner were self-contained, but that gun’s not gonna feed itself. Or could it? As a joke, one of the soldiers brought up Jesse Ventura’s character in Predator , who runs around with a minigun fed by a box on his back. A simple one-person solution, as envisioned by some Hollywood propmaster. What Ventura’s character had was one long, continuous belt feeding uninterruptedly from the pack into his gun. But without that arrangement, the best a lone machine gunner could manage would be to carry individual 50-round belts to load himself—and stopping to reload every 50 rounds. That leads to lulls in fire, and the more times you reload, the more you increase the chances of the gun jamming. This is a design flaw with potentially life-or-death consequences. And so, following the “Predator” discussion, Staff Sergeant Vincent Winkowski thought about it and figured a back-mounted ammo rig might actually be doable. So Winkowski grabbed an old ALICE (all-purpose lightweight individual carrying equipment) frame, welded two ammunition cans together—one atop the other after cutting the bottom out of the top can—and strapped the fused cans to the frame. To that he added a MOLLE (modular, lightweight load-carrying equipment) pouch to carry other equipment. “We wondered why there wasn’t some type of [system] that fed our machine guns [like the] mini-gun as portrayed in the movie,” Winkowski said. “So, I decided to try it using the feed chute assembly off of [a vehicle-mounted weapons system]. We glued a piece of wood from an ammo crate inside the ammo cans to create the decreased space necessary so the rounds would not fall in on each other. “My Mark 48 gunners, Spc. Derick Morgan and Spc. Aaron McNew, who also had input to the design and evaluation, took it to the range and tested it, and even with its initial shortcomings, it was much better than the current TTP (tactics, techniques and procedures) we employed. On Feb. 26, 2011, our prototype ‘Ironman’ pack even saw its first combat use by Spc. McNew when our squad was ambushed by up to 50 fighters in a river valley, and it worked great!” “I’m not impressed!” (more…)

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U.S. Soldiers’ Combat Invention Inspired by “Predator” Movie

New PlayStation 3 Hack May Be One That Sony Can’t Stop

The PlayStation 3 has been around since 2006, and since roughly 2006 hackers have been trying to have their way with it. The system has proven a relatively tough nut to crack, though not an impossible one. The last major rooting incident was back in 2011 . More »

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New PlayStation 3 Hack May Be One That Sony Can’t Stop