Insecticides Mimic Melatonin, Creating Higher Risk Of Diabetes

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The Application of Sunblock in Visible and UV Light. 

(lifepixel)

In California’s Salinas Valley, known as the “Salad Bowl of the World,” a push is underway to expand agriculture’s adoption of technology. Special correspondent Cat Wise reports on how such innovation is providing new opportunities for the Valley’s largely Hispanic population. Watch her full piece here: http://to.pbs.org/2gLmEga

From the TV series “The life of Mammals”.

(The Telegraph)

Self-assembling nanoparticle arrays can switch between a mirror and a window

By finely tuning the distance between nanoparticles in a single layer, researchers have made a filter that can change between a mirror and a window.

The development could help scientists create special materials whose optical properties can be changed in real time. These materials could then be used for applications from tuneable optical filters to miniature chemical sensors.

Creating a ‘tuneable’ material - one which can be accurately controlled - has been a challenge because of the tiny scales involved. In order to tune the optical properties of a single layer of nanoparticles - which are only tens of nanometres in size each - the space between them needs to be set precisely and uniformly.

To form the layer, the team of researchers from Imperial College London created conditions for gold nanoparticles to localise at the interface between two liquids that do not mix. By applying a small voltage across the interface, the team have been able to demonstrate a tuneable nanoparticle layer that can be dense or sparse, allowing for switching between a reflective mirror and a transparent surface. The research is published today in Nature Materials.

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Huntington Library, Los Angeles

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Dutch trains now all powered by wind energy

All Dutch trains have become 100% powered by electricity generated by wind energy, the national railway company NS has said, making it a world’s first.

One windmill running for an hour can power a train for 120 miles, the companies said. Dutch electricity company Eneco won a tender offered by NS two years ago and the two companies signed a 10-year deal setting January 2018 as the date by which all NS trains should run on wind energy. ‘We in fact reached our goal a year earlier than planned,” said NS spokesman Ton Boon, adding that an increase in the number of wind farms across the country and off the coast of the Netherlands had helped NS achieve its aim.

They hope to reduce the energy used per passenger by a further 35% by 2020 compared with 2005.