Here are some links to images. Photographs of the setup: https://ars.els-cdn.com/content/image/1-s2.0-S0016706123003324-gr2.jpg https://ars.els-cdn.com/content

Here are some links to images. Photographs of the setup: https://ars.els-cdn.com/content/image/1-s2.0-S0016706123003324-gr2.jpg https://ars.els-cdn.com/content/image/1-s2.0-S00167061230033... And then various shapes: https://ars.els-cdn.com/content/image/1-s2.0-S0016706123003324-gr6.jpg https://ars.els-cdn.com/content/image/1-s2.0-S00167061230033... https://ars.els-cdn.com/content/image/1-s2.0-S0016706123003324-gr3.jpg https://ars.els-cdn.com/content/image/1-s2.0-S00167061230033... Over time: https://ars.els-cdn.com/content/image/1-s2.0-S0016706123003324-gr4.jpg https://ars.els-cdn.com/content/image/1-s2.0-S00167061230033...