grrlscientist writes "Laurie Santos is trying to find the roots of human irrationality by watching the way our primates make decisions. This video documents a clever series of experiments in 'monkeynomics' and shows that some of the stupid decisions we make are made by our primate relatives too."

x4000 writes "My recent RTS game uses a new style of AI that hybridizes rules-based AI with emergent AI logic. As a disclaimer, I'm really not an AI programmer at all — my background is in databases, financial modeling, etc. But it just so happens that database experience, which often involved distilling data points from multiple sources and then combining them into suggested decisions for executives, also makes a great foundation for certain styles of AI. The approach I came up with leans heavily on my database background, and what concepts I am familiar with from reading a bit about AI theory (emergent behavior, fuzzy logic, etc). The results are startlingly good. Total development time on the AI was less than 3 months, and its use of tactics is some of the best in the RTS genre. I'm very open to talking about anything and everything to do with the design I used, as I think it's a viable new approach to AI to explore in games, and I'd like to see other developers potentially carry it even further."

rift321 writes "Scientists safely created induced pluripotent stem cells from human stem cells, and grew them in a petri dish. The previous methods for creating iPSC's involved the use of retroviruses, which rendered the stem cells unacceptable for human implantation due to an increased risk of cancer and mutations. The researchers used a safer, albeit slower process to modify the skin cells, using a cell-penetrating peptide to deliver the needed genes into the cell (PDF). I'd like to hear if anyone has some insight into exactly how close that brings us to everyday-use of stem cells for regenerative therapy, and exactly what obstacles remain before such therapies can be put to use."

Hucko writes "Ars Technica has a story about a study by Cambridge law professor Patricia Akester that suggests (declares?) that DRM and its ilk does persuade citizens to infringe copyright and circumvent authors' protections. The name of the study is 'Technological accommodation of conflicts between freedom of expression and DRM: the first empirical assessment.'" The study itself is available for download (PDF); there's also a distillation here.

Village Idiot sends word of a patent granted to MIT researchers for a cone of silence a la Maxwell Smart. This one doesn't use plastic, but rather active and networked sensors and speakers embedded in a (probably indoor) space such as an open-plan office. "In 'Get Smart,' secret agents wanting a private conversation would deploy the 'cone of silence,' a clear plastic contraption lowered over the agents' heads. It never worked — they couldn't hear each other, while eavesdroppers could pick up every word. Now a modern cone of silence that we are assured will work is being patented by engineers Joe Paradiso and Yasuhiro Ono of the Massachusetts Institute of Technology. ... Instead of plastic domes, they use a sensor network to work out where potential eavesdroppers are, and speakers to generate a subtle masking sound at just the right level. ... The array of speakers... aims a mix of white noise and randomized office hubbub at the eavesdroppers. The subtle, confusing sound makes the conversation unintelligible." One comment thread on the article wonders about the propriety of tracking people around an office in order to preserve privacy.

Kristina at Science News writes "As part of the announcement of its proposed fiscal year 2010 budget, the Obama administration released a summary (called 'Terminations, Reductions, and Savings: Budget of the US Government, Fiscal Year 2010') that includes which science-related programs are getting cut. Two big programs are the nuclear waste storage project at Yucca Mountain in Nevada and a second prototype airborne laser missile-defense weapon." Update: 05/07 23:03 GMT by T : On the other hand, reader Dusty writes, "The NASA budget for 2010 has been announced, up 5% on 2009. Human space flight plans to be reviewed."

Apple unveiled the iPhone 3.0 software just now in Cupertino. Here's MacWorld's live-action blow-by-blow coverage. The announcement included new features for developers and users. For developers, the big items were in-app purchasing (for example for game upgrades, map content, and subscriptions) for paid apps only; peer-to-peer connectivity via Bluetooth; giving apps access to hardware via the dock connector or Bluetooth; maps embeddable in apps; and push notifications. For users, there's finally cut-copy-paste available in all apps; search across everything in the iPhone; landscape keyboard; MMS messaging; and voice memos. Developer beta starts today and 3.0 will be available in the summer — free for all 3G phones, $10 for iPod Touch.