Printing screens

Article Abstract:

Jacobson and colleagues at the MIT Media Laboratory have described a cheap electronic ink for printing on flexible substrates. The ink consists of tiny dispersed particles within microscapsules, with an appearance similar to newsprint. It can be altered from white to black by the simple application of an electric field. It is suitable for large area applications due to the low cost per unit area, and in the future it could be used in more demanding applications, such as in disposable TV screens, or electronic wallpaper.

Usage, Innovations, Electric fields, Inks, Ink

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The artist as citizen

Article Abstract:

Barbara Streisand does not deny the fact that many of the films produced in the US glorify evil and present the negative aspects of humanity. However, Streisand thinks that artists should not be deprived the right to fight for what they believe in and present their views regarding significant issues.

Political activity, Artists, Speeches, lectures and essays, Transcript, Streisand, Barbra

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Fluorite

Article Abstract:

Fluorite crystal is a mineral that can grow in different conditions. It is usually cube-shaped and can be any color except orange. The mineral has a glassy luster, can be transparent or opaque in clearness, and has remarkable elements of symmetry.

Analysis, Column, Study and teaching, Crystallography, Minerals, Minerals (Geology), Fluorspar

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