Scientists develop fatigue-free ferroelectric material

Researchers at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences, in collaboration with research groups from the University of Electronic Science and Technology of China ...

EarthCARE satellite to probe how clouds affect climate

Will clouds help cool or warm our world in the years ahead? The EarthCARE satellite will blast off Tuesday from California on a mission to find out, aiming to investigate what role clouds could play in the fight against climate ...

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Polarizer

A polarizer is an optical filter that passes light of a specific polarization and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam with well-defined polarization. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.

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