The Cross Heads

E-tattoos could make mobile EEGs a reality

A 3D-printable EEG electrode e-tattoo. Credit: University of Texas at Austin. Epidermal electronics attached to the skin via temporary tattoos (e-tattoos) have been around for more than a decade, but they have their limitations, most notably that they don’t function well on curved and/or hairy surfaces. Scientists have now developed special conductive inks that can […]

December 5, 2024 | e-ink, EEG, electroencephalography, electronic tattoos, engineering, materials science, Science | No comments

Teaching a drone to fly without a vertical rudder

Most airplanes in the world have vertical tails or rudders to prevent Dutch roll instabilities, a combination of yawing and sideways motions with rolling that looks a bit like the movements of a skater. Unfortunately, a vertical tail adds weight and generates drag, which reduces fuel efficiency in passenger airliners. It also increases the radar […]

November 27, 2024 | Biomechanics, birds, drones, engineering, flight, mechanical engineering, Science | No comments

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