Photonic crystals are periodic optical structures that can control the flow of light. Multiple reflections from surfaces separated by a distance similar to the wavelength prevent an optical beam ...

Blake Lively has come under fire from furious fans who have lambasted her for a 'disgusting' act in an unearthed clip. The actress is currently embroiled in a lawsuit with her It Ends With Us co ...

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A blister's fluid can transmit the virus to others who haven't had chickenpox ... DermNet. Heat rash (miliaria): images, causes, and treatment. Seattle Children's Hospital Heat rash. American Academy ...