A team of Frenchmen moving six tons of Canon de 155 L modèle 1877/16 de Bange using a drag rope over the carriage wheel for leverage
![How a spatially coherent white light beam diffracts through a Sierpinski carpet grating [OC]](https://media.reddit.tube/thumbnails/3f868d4e4fe7709d551f7de3e81312940f01cd82.jpg)
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