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What is ferromagnetic fluid?

What is ferromagnetic fluid? Ferrofluids are paramagnets that consist of magnetic nanoparticles dispersed in a liquid. When exposed to a magnetic field, the combined effects of gravity, surface tension and the magnetic attraction between nanoparticles can create unusual spiky structures Read more…

What is the best square sketchbook?

What is the best square sketchbook? The Best Hardbound Sketchbooks for Imaginative Explorations on the Page Canson Artists Series Sketchbook. Illo Hardcover Sketchbook, 8″ x 8″ Pentalic Sketch Book, Hardbound, 8.5″ x 11″ Daler-Rowney Simply Sketchbooks, 8.5″ x 11″ Strathmore Read more…