A computer security researcher demonstrates attacks on cash machines. Yesterday, during a flashy presentation at the Black Hat security conference in Las Vegas, a computer security expert showed several ways to break into ATMs.

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How to Make an ATM Spit Out Money

A chemical-infused scaffold generates new tissue by attracting stem cells. Today’s titanium replacement joints work very well for 10 to 15 years, but replacing them after they’ve worn out is a challenge for both patient and surgeon. A team of researchers from Columbia University proposes a way around that problem: by implanting a scaffold that encourages the patient’s own stem cells to regrow the joint.

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Helping Joints Regrow Themselves

Electric cars could benefit from a new manufacturing method. A new chemical trick for making nanostructured materials could help increase the range and reliability of electric cars and lead to better batteries that could help stabilize the power grid.

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A Boost for Battery Life and Capacity

Wireless chargers are more convenient, but less efficient. GM and Nissan will have to overcome many consumer concerns as they bring mass-market plug-in hybrid and electric cars to market this winter. One aspect that might make potential buyers hesitate is a fear that they’ll forget to plug in their cars when they get home, and thus won’t have a charged-up car in the morning.

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Can Electric Vehicles Lose the Plug?

The DOE funds a research center aimed at making artificial photosynthesis practical. The U.S. Department of Energy has awarded $122 million to establish a research center in California to develop ways of generating fuel made from sunlight. The project will be led by researchers at Caltech and the Lawrence Berkeley National Laboratory, and will include researchers at various other California institutions, including Stanford University, the University of California, Irvine, and the University of California, Berkeley.

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Fuel from the Sun

A federal investigation finds conflicting test results and false marketing claims.

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Video – Genetic Tests Get Bad Grades

A malicious site can find out what social-networking groups you belong to–and then figure out your identity. People often get categorized by social group–jock, geek, soccer mom. The same is true for our online identities: If you have an account on Facebook or LinkedIn, you might also belong to several groups on each site.

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Your Groups Tell Hackers Who You Are

Drug companies are harnessing new knowledge of cancer genetics. The plummeting cost of DNA sequencing has enabled scientists to explore the genetic complexities of cancer with an ever-finer comb , uncovering a growing number of genetic mutations that drive cancer. Now this genetic knowledge is being used to direct drug development by testing specific compounds on 1,000 cancer cell lines that incorporate many of these mutations. The findings will help pharmaceutical companies design clinical trials so that they include only those patients most likely to respond to a drug. Ultimately, physicians hope to be able to screen a patient’s tumor and choose the most effective drug based on its specific genetic profile.

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Fine-tuning Cancer Treatments

A startup makes a new entry in the race to build the virtual personal assistant. Smart phones promise a lot of computing power and connectivity: We can search the Web and communicate from anywhere. But it can be hard to make full use of all these capabilities on small screens with tiny buttons. Now comes a new wave of applications that combine speech recognition and artificial intelligence to help people carry out simple tasks on their mobile devices.

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Talking to Your Phone

HP is developing new materials for brighter low-power displays. Electronic paper that reflects light, instead of filtering it from a backlight, as most conventional displays do, is easy on the eyes and saves on battery life. But this reliance on ambient light becomes a handicap when trying to make a bright, beautiful color display. Researchers at HP are addressing the problem by developing new materials that use ambient light to create a more vibrant color for video-capable, low-power screens.

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Brighter Color for Reflective E-Reading Displays