Finding the best gate for an aircraft is a surprisingly difficult taskNext time you’re running at full tilt towards your airport gate, spare a thought for the airline staff who made sure that that gate was actually available. Gate allocation is a surprisingly complex task. “With 15 gates and 10 airplanes, there are more than
The toxic killers in our air too small to see
Current pollution meters don’t count the very smallest pollutants – nanoparticles. Recent research suggests these tiny toxic substances could be a major cause of illness and death. By Tim Smedley 15th November 2019 A After years of headlines about air pollution, we’ve been misled on a few things about the world’s biggest environmental health problem.