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Science

Fiber Optic Spanner (Wrench) Developed 65

xclr8r writes "A technique to use fiber optics to adjust microscopic particles has been developed. 'Rather than an actual physical device that wraps around a cell or other microscopic particle to apply rotational force, the spanner (the British term for a wrench) is created when two laser beams — emitted by a pair of optical fibers — strike opposite sides of the microscopic object, trapping and holding it in place. By slightly offsetting the fibers, the beams can impart a small twisting force, causing the object to rotate in place. It is possible to create rotation along any axis and in any direction, depending on the positioning of the fibers.' Applications of this technology can be used in a number of ways, including cancer research. This technology could be used to actually manipulate DNA. Associate Professor of Physics Samarendra Mohanty states that macroscale applications are a possibility, including 'direct conversion of solar energy to mechanical energy,' or possibly using it to 'simulate an environment in which photons radiated from the sun could propel the reflective motors in solar sails, a promising future technology for deep-space travel.'"

Comment Re:I worried for a moment... (Score 1) 144

I thought I had seen some proposals for water injection where the water was only injected during full-power operation, where it would help keep the combustion chamber cool, and boiling the water would put more combustion energy into mechanical work instead of just heat. I agree that using it full-time would have its drawbacks.

Comment Re:Helping to Keep it Secret... (Score 4, Interesting) 288

I'm not sure how "fast" fast enough is. Assuming the Wikipedia article you cite is accurate, Schon received his PhD and was hired by Bell Labs in 1997. He submitted his fraudulent papers over several years, and a committe was set up to investigate discrepancies in 2002, and submitted its report that year showing how Schon had lied. So in roughly five years, the peer-review system did its task to uncover deliberate, premeditated fraud in the field of basic semiconductor research. That seems like a reasonable time to me, given the nature of the research, and the time required to properly document failures to reproduce results and cross-check data. From the sound of things, the fraud may have not been that complicated, basically reusing the same graphs in different papers with different labels, so you would have hoped it would have been caught sooner. I'm not familiar enough with the case to know if Schon was careful to reuse graphs in papers in widely different journals to minimize the possibility of someone seeing the identical graph twice.

Yes, it would have been better if the fraud was caught sooner, but I'm not sure how you would do it, short of something hella expensive like instituing a two-man rule for all research positions everywhere, and demanding independant experiemental validation of all papers before they can be published.

Comment Re:Back to School (Score 1) 333

Don't worry, your teacher's an idiot. Aside from their obvious failures in instruction: that is, the teacher should have explicitly asked for a discussion of the symbolism inherent in the southward journey in Huck Finn, instead of the broader question of just why did Huck and Jim go south; the teacher obviously missed the explicit instructions regarding the finding of motives, morals, and plot in the novel, and should therefore probably be prosecuted, banished, or shot.

I had a somewhat similar experience: in 11th grade, we read the novel "The Awakening", in which the protagonist undergoes a radical personality shift, which is supposed to have all sorts of symbolic origins and meanings. When asked in class, I ascribed the changes in personality to a minor cerebral aneurysm.

Comment Re:wtf? (Score 1) 111

I have proposed we use the infinitive verb "to spatulate" to describe the thing that is done with a spatula. For example, "After adding eggs to the flour, you will need to spatulate". Or, "I've been spatulating all day, and wow my arm is tired."

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