Nanofiber carpet could lead to new sticky or insulating surfaces

Inspired by the extraordinary characteristics of polar bear fur, lotus leaves and gecko feet, engineering researchers have developed a new way to make arrays of nanofibers that could bring us coatings that are sticky, repellent, insulating or light emitting, among other possibilities.

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Warning: Chemical weapons risk during a period of very rapid scientific change

Alarming examples of the dangers from chemical weapons have been seen recently in the use of industrial chemicals and the nerve agent sarin against civilians in Syria, and in the targeted assassination operations using VX nerve agent in Malaysia and novichok nerve agent in the UK.

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Songbirds set long-distance migration record

Researchers have studied flight routes to determine how far willow warblers migrate in the autumn. The results show that the willow warbler holds a long-distance migration record in the 10-gram weight category -- with the small birds flying around 13,000 kilometers or longer to reach their destination.

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