Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?

Where Are Your Contact Lens Displays? 152

destinyland writes "'We already see a future in which the humble contact lens becomes a real platform, like the iPhone is today,' argues researcher Babak Parvis, 'with lots of developers contributing their ideas and inventions.' He provides an update on the contact lens with transparent circuitry that's being developed at the University of Washington. (Its components will eventually include hundreds of LEDs which form images in front of the eye such as charts and photographs). They've already developed a lens-with-LED prototype that's powered by 330 microwatts of wireless radio-frequency power, and believe the lenses could also be used as biosensors to deliver body chemistry readings (including blood sugar levels). But 'What we've done so far barely hints at what will soon be possible with this technology,' says Dr. Parviz."
PlayStation (Games)

US Air Force Buying Another 2,200 PS3s 144

bleedingpegasus sends word that the US Air Force will be grabbing up 2,200 new PlayStation 3 consoles for research into supercomputing. They already have a cluster made from 336 of the old-style (non-Slim) consoles, which they've used for a variety of purposes, including "processing multiple radar images into higher resolution composite images (known as synthetic aperture radar image formation), high-def video processing, and 'neuromorphic computing.'" According to the Justification Review Document (DOC), "Once the hardware configuration is implemented, software code will be developed in-house for cluster implementation utilizing a Linux-based operating software."

Shedding Your Identity In the Digital Age 138

newscloud writes "Writer Evan Ratliff tells how he managed to hide from crowdsourced searchers for 27 days. The first person to find him and photograph him would claim a $5,000 prize. In addition to hiding out as a roadie with indy band 'The Hermit Thrushes' for a week, Ratliff donned a variety of increasingly impressive disguises. It's an interesting read on how to disappear in the digital age: 'August 13, 6:40 PM: I'm driving East out of San Francisco on I-80, fleeing my life under the cover of dusk. Having come to the interstate by a circuitous route, full of quick turns and double backs, I'm reasonably sure that no one is following me. I keep checking the rearview mirror anyway. From this point on, there's no such thing as sure. Being too sure will get me caught. About 25 minutes later, as the California Department of Transportation database will record, my green 1999 Honda Civic, California plates 4MUN509, passes through the tollbooth on the far side of the Carquinez Bridge, setting off the FasTrak toll device, and continues east toward Lake Tahoe. What the digital trail will not reflect is that a few miles past the bridge I pull off the road, detach the FasTrak, and stuff it into the duffle bag in my trunk, where its signal can't be detected. There will be no digital record that at 4 AM I hit Primm, Nevada, a sad little gambling town about 40 minutes from Vegas, where $15 cash gets me a room with a view of a gravel pile...' Spoiler alert: We previously discussed the denouement of the contest."

Comment Re:Asteroid? Really? (Score 1) 86

I don't old the earth is, or how that question relates to my statement. Sounds like bait.

/me bites

I don't appreciate someone telling me it's a fact that the earth is 7 thousand years old, or 7 billion years old, as if it's a fact when no one can prove beyond doubt either way. There are theories of evolution, of creation. Once you write one way or the other as fact, you are telling others how to think, and they tend to cease thinking for themselves. It's a kind of lie, to tell someone that *this* is how something *is*, when it isn't demonstrable fact.

I'll add that personally, I choose to believe in the theory of Creation, the Bible, the Flood, and that the earth is approximately 7-10 thousand years old. But I don't _know_ that, and can't prove it. After extensive reading of both sides of the arguments, it is simply the theory I choose to believe. I like the USA because here I am free to believe that if I want to. I hope this country maintains it's religious freedoms. But if I'm writing a professional publication, I ought to be careful to express it as a theory, as I certainly can't prove it.

So, I'm not complaining that they believe the theory of mass-extinction via asteroid - that's their prerogative. I'm complaining that they are pushing their theory as fact, when it isn't fact, but is still theory.

Comment Re:The Catch (Score 1) 359

These requirements are absolutely insane! I saw them and immediately reversed my decision to apply to party. Effectively they will own you and your family. There is nothing to stop them from using your personal information to get credit in your name. Interestingly, you are also granting them, their associates, and anyone they want to transfer the right to, irrevocable permission to use anything recorded about you or your family by anyone else at anytime for any reason. I wonder how that passes copyright muster. How does one grant permission for them to use someone else's work?

Comment Mostly meaningless study (Score 1) 287

Running a data center in a low humidity location for 10 months doesn't reflect real-world data center life, making this study basically worthless. Heat reduces the life of electronics. Run the experiment in somewhere of ~average~ humidity, for the typical lifespan of a data center and then compare the results. We keep our servers between five and ten years depending on the application. The cost savings will be dramatically impacted if we have to buy new servers twice as often. If people are to adopt this, they need to know how well it will work well in varying conditions. FWIW, I used to work for a major chipset company. We'd test all our hardware from 0C to 60C ambient temperature. Too cold can cause problems just as too hot can. Humidity can also contribute to corrosion, regardless of condensation, which also causes problems. What hardware is used also makes a difference - PSU's and drives often have a harder time taking the higher temps. Also, inconsistent temperatures (warmer in the day, cooler at night) can contribute to broken contacts due to the tiny amounts of expansion/contraction that would occur every day.

Slashdot Top Deals

A mathematician is a device for turning coffee into theorems. -- P. Erdos