A balanced filter for making optimal decisions

A RUDN mathematician has suggested a method of evaluating the level of nonadditivity in a choice problem, i.e. to calculate how the parameters of the choice are connected to each other, and how it influences the end result. ...

Antireflection coating makes plastic invisible

Antireflection (AR) coatings on plastics have a multitude of practical applications, including glare reduction on eyeglasses, computer monitors and the display on your smart-phone when outdoors. Now, researchers at Penn State ...

Topological quantities flow

Topology is an emerging field within many scientific disciplines, even leading to a Nobel Physics Prize in 2016. Leiden physicist Marcello Caio and his colleagues have now discovered the existence of topological currents ...

Indian firefighters battle air pollution in New Delhi

Indian authorities have ordered firefighters in the capital to sprinkle water from high-rise buildings to settle dust and stop garbage fires and have banned construction activity as hazardous air quality affects millions ...

It's not so easy to gain the true measure of things

I teach measurement – the quantification of things. Some people think this is the most objective of the sciences; just numbers and observations, or what many people call objective facts.

How a dust storm and hazardous air quality can harm your health

A major dust storm swept through Sydney and regional New South Wales this week. Red skies over Broken Hill on Wednesday night and Sydney on Thursday resembled those seen during intense bushfire activity and the massive 2009 ...

Living with air pollution

People wearing smoke masks, children going stir-crazy indoors, families driving hours to find fresh air. Alarming as it is to some, unhealthy air enveloping the San Francisco Bay Area in recent days is all too familiar to ...

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