whirr

Every so often, we could hear the whirr of a drone overhead; then flashes of light as some were shot down and they fell from the sky.

The droneophobia can be triggered by an array of ordinary urban sounds – small motorcycles and scooters, lawnmowers, air conditioners – anything mechanical that whirrs.

As a three-hour program — Knight opened at 7 p.m. on the dot — Sunday’s show moved quickly, with a rotating stage that whirred to life after each woman’s set.

In a gleaming laboratory in Edinburgh, robotic machines whirr and mix.

In a gleaming laboratory in Edinburgh, robotic machines whirr and slide and mix chemicals.