Technology
Can a phone app really be your therapist?
An inability to access face-to-face therapy has led to the rise of tech alternatives, but do they really improve mental health, asks Eleanor Morgan
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Martin Wikelski interview: Tracking animals reveals their sixth sense
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Watch a foot-tickling machine discover the most ticklish spot on feet
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Artificial touch: The new tech making virtual reality more immersive
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Artificial leaves: Bionic photosynthesis as good as the real thing
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Automated chemistry: The machines that can discover new drugs
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The race is on to tackle climate change by pulling carbon from the air
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Will 5G mobile networks in the US really interfere with aircraft?
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Portable laser scanner creates colour 3D images of surfaces or objects
Lidar uses lasers to create 3D images, but these can be hard to interpret because they are black and white. A new scanner adds cameras to make colour images that could be useful for infrastructure inspection or robot vision
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Outsider wins DARPA challenge to predict where floats drift at sea
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GPS software boost lets smartphones pinpoint location to within 20 cm
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Australia鈥檚 planned anti-trolling law may silence political critics
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Our global agreement on AI could reduce bias and surveillance
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