An opalic plasmonic sample, constituted by a hexagonal arrangement of metallized silica spheres, presents remarkable optical properties due to the mixing of periodic arrangement and singularities at the sphere touching points.

“Why,” he protested, “it’s just a castor bean!” “It came up about a year ago,” I said. “Planted itself right where I wanted a green something. I kept it from freezing last winter. I put boxes around it to break the wind, and on cold nights I covered it with gunnysacks. Every morning I pour a coffeepotful of water on it.”

to line a copy book

For this latter term, phonaesthesia is doubtless at work, since kring is also ‘the sound of a small bell’.