The atrocities committed by Russian forces in the town of Bucha some 18 months ago unveiled to an appalled world both the depraved brutality of Moscow’s invasion of Ukraine and the determination of Ukrainians to resist Vladimir Putin’s armies.

Axar.az reports that resistance has since taken myriad forms but among the more singular is the response of one unnamed Bucha resident whose reply to the mass killings in his hometown was to sit down and use a decade’s experience as a materials scientist to find a way to help Ukraine’s soldiers hit back at the Kremlin.

The result is the development of an extraordinary “invisibility cloak” which is now being used to hide Ukrainian troops and equipment from sensors on Russian drones ceaselessly patrolling the frontlines as Kyiv seeks to seize back territory in its ongoing counteroffensive.