surfaces

New quantum gravity sensor could someday peel away the surfaces of other worlds

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To find features like groundwater under Earth‘s surface — or under the surface of another world — scientists can sense the subtle marks those features leave in the planet’s gravitational field. But those measurements aren’t easy to get; you need very sensitive instruments, and even the slightest vibrations can throw off the measurements. Now, a … Read more

Laser scanner creates 3D colour images of surfaces or objects

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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 Technology 14 January 2022 By David Hambling A new portable scanner combines laser scanning technology with … Read more