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March 29, 2013 1:38 pm | A specially-adapted “tactile helmet”, developed by researchers at the University of Sheffield, could provide fire-fighters operating in challenging conditions with vital clues about their surroundings. The helmet is fitted with a number of ultrasound sensors that are used to detect the distances between the helmet and nearby walls or other obstacles. These signals are transmitted to vibration pads that are attached to the inside of the helmet, touching the wearer's forehead. March 29, 2013 1:21 pm | Lignocellulosic biomass is the most abundant organic material on Earth and could supply the sugars needed to produce advanced biofuels that can supplement or replace fossil fuels.
The Dunning–Kruger effect is a cognitive bias in which unskilled individuals suffer from illusory superiority , mistakenly rating their ability much higher than average. This bias is attributed to a metacognitive inability of the unskilled to recognize their mistakes. [ 1 ] Actual competence may weaken self-confidence, as competent individuals may falsely assume that others have an equivalent understanding. David Dunning and Justin Kruger of Cornell University conclude, "the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others". [ 2 ] [ edit ] Historical references
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