We haven't seen all that many OLED lighting options, but a group of researchers from the University of Michigan and Princeton University say they could be on the verge of changing that situation, with them now boasting of a new breakthrough that could greatly increase the efficiency of OLEDs. The key to that, it seems, is a combination of an organic grid and some tiny dome-shaped micro lenses that guide the trapped light out of the devices. As the researchers point out, with current OLEDs, only 20% of the light generated is actually released, but they say this new method could boost the efficiency by a full 60%, or about 70 lumens per watt of power. Of course, they're also quick to point out that all of this is still quite a ways away from becoming practical for commercial purposes, although they seem to be optimistic that the eventual production cost for these new and improved OLEDs will be competitive with existing ones.

Normally we get excited when a slab of silicon makes our games run at 60 frames per-second, but in this case we're impressed with a new chip that filters out cancer cells. The device, created by some impressive souls at Princeton and Boston University, directs and focuses streams of cells in a liquid. Like a change sorter, it then separates regular cells form unusual ones. The silicon wafer is tacked with tiny pillars that catch abnormal cells that are, in the end, potentially cancerous. The device hasn't been used to any major extent, but we'll keep an eye on this promising discovery.

We're all for hacking stuff, generally, but hacking democracy for malicious purposes is just plain uncool. While no one's definitively proven that such a scenario has ever actually happened in real elections, vote-hacking remains a distinct possibility, given the state of our electronic voting equipment. If you were unconvinced the last time we covered this, of just how shoddy these Diebold voting machines are, here's another arrow in our quiver: Princeton University researchers have taken apart a Diebold machine, examined it from every angle, written a new paper on its flaws and have come to the following conclusions: 1) Malicious code "can steal votes with little if any risk of detection." 2) Said code can be installed in one minute or less. 3) The Dieblod machines run Windows CE 3.0 -- so, they're susceptible to viruses. 4) Some problems would require the entire replacing of hardware, yet another security risk. Still though, we would love to see a debate between the two candidates in this fictitious election: George Washington and Benedict Arnold.

[Via Boing Boing]

It seems that HDCP, the high def content protection scheme that's all the rage among Hollywood types, may not be as secure as the suits had hoped: Princeton University computer science professor Ed Felten takes a look at the standard's supposedly well-known security flaws and dumbs down the basic tech on his blog so all us non-math majors can understand. Basically, HDCP relies on a handshake between connected hardware wherein the two devices send each other a set of rules to be applied to the forty-or-so numbers that constitute both devices' "secret vector" -- if each device reports the same numerical result (as the pre-determined mathematical rules dictate they should), sweet high definition content can begin to flow freely. According to Felt, all it takes to figure out a given device's secret vector or create a workable "phantom" vector is to perform a number of handshakes equal to the number of elements in the secret vector, followed by a little bit of algebra to tease out the results from a matrix of equations (follow the "Read" link for a better explanation). Although HDCP-restricted HDMI and DVI connections aren't prevalent enough yet for anyone to have actually undertaken this project (either that, or fear of legal reprisals has kept any successful cracks from being published), the simple fact that it's doable could mean nightmares for Tinseltown sooner rather than later.

[Via Boing Boing]