It took just 20 seconds for them to make the figurine, versus around ten minutes for a conventional additive-manufacturing process. Three 3D-printed objects: one made from transparent resin (left); ...

As the device is intended mainly for the observation and measurement of opaque objects, a thin parallel plate of glass is inserted at an angle of 45° between the lenses (Fig. 1). This serves to ...

It’s not quite X-ray vision, but a way has been found to transmit simple images through opaque objects using ordinary light – and physicists have used the method to project an image through ...