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A new 12-sided design has both covert and overt signs that make it easier to find fakes. But modernization only goes so far: the 766-year-old Trial of the Pyx tradition lives on to check the metals.
Low-cost color-coded sensor out of the U.K. could let doctors in developing countries detect the presence of viruses including HIV at a glance.
A novel device out of Brown University could lead to the widespread, real-time tracking of influenza.
Seeking out cheaper biofuels, Boston-area start-up uses protein engineering to instruct sorghum and corn stover plants to break down more quickly into sugars.
Student projects for handheld diagnostic tool and technology for helping handicapped children win awards from the society for electrical and electronic engineers.