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Almost 50% of psychiatric patients get a change in diagnosis over a 10-year period--meaning they may end up taking a slew of unhelpful drugs until doctors finally decide what mental illness they have. But what if a simple blood test could help discern whether patients have schizophrenia, major depression, or bipolar disorder? Rules-Based Medicine , a company that specializes in research and development for drugs and diagnostics, thinks it can.

First came Geminoid , now there's Robokind . The diminutive educational robot coated with Frubber, a semi-convincing kind of synthetic robot skin, can replicate a great variety of human expressions. But is this a good thing

(PhysOrg.com) -- Among the many intriguing concepts in Einstein’s relativity theories is the idea of closed timelike curves (CTCs), which are paths in spacetime that return to their starting points. As such, CTCs offer the possibility of traveling back in time.