Nearly lost amidst the breathless anticipation of all things wireless–whether it’s the latest smart phone, free Internet hot spot or GPS navigation system–is the potential impact these gadgets may have on scientific instruments that likewise need access to the electromagnetic spectrum.

Yet the proliferation of wireless technologies, licensed and otherwise, grabbing increasingly more spectrum bandwidth is interfering significantly with scientists’ ability to monitor radio emissions from the Earth and space that “yield vital information” about our planet and its place in the universe, according to a report released Monday by the National Research Council’s Scientific Use of the Radio Spectrum committee.

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Our brains are crammed with a massive amount of memories that we have formed over a lifetime of experiences. These memories range from the profound (who am I and how did I get here?) to the most trivial (the license plate of the car at a stoplight). Furthermore, our memories also vary considerably in their precision. Parents, for instance, often know the perils of a fuzzy memory when shopping for a birthday gift for their child: Remembering that their son wanted the G.I. Joe with Kung Fu Grip rather than the regular G.I. Joe could make an enormous difference in how well the gift is received. Thus, the “fuzziness” of our memory can often be just as important in our daily lives as being able to remember lots and lots of information in the first place.

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As a professor, a software developer and an author I’ve spent a career in software security. I decided to conduct an experiment to see how vulnerable people’s accounts are to mining the Web for information. I asked some of my acquaintances, people I know only casually, if, with their permission and under their supervision, I could break into their online banking accounts. After a few uncomfortable pauses, some agreed. The goal was simple: Get into their online banking account by using information about them, their hobbies, their families and their lives freely available online.

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In the 2005 blockbuster “Batman Begins,” vengeful Bruce Wayne hones his killer instincts in the streets for seven years before landing himself in a Bhutanese prison, where he falls in with the mysterious League of Shadows, who teach him the way of the ninja. “The Dark Knight,” the next movie in the Batman franchise, opens in theaters Friday. To investigate whether someone like Bruce Wayne could physically transform himself into a one-man wrecking crew, ScientificAmerican.com turned to E. Paul Zehr, associate professor of kinesiology and neuroscience at the University of Victoria in British Columbia and a 26-year practitioner of Chito-ryu Karate-do.

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Hospitals and airplanes ban the use of cellphones, because their electromagnetic transmissions can interfere with sensitive electrical devices. Could the brain also fall into that category? Of course, all our thoughts, sensations and actions arise from bioelectricity generated by neurons and transmitted through complex neural circuits inside our skulls. Electrical signals between neurons generate electric fields that radiate out of brain tissue as electrical waves that can be picked up by electrodes touching a person’s scalp. Measurements of such brainwaves in EEGs provide powerful insight into brain function and a valuable diagnostic tool for doctors. Indeed, so fundamental are brainwaves to the internal workings of the mind, they have become the ultimate, legal definition drawing the line between life and death.

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