They're already used by international spies and nosy neighbors.
And one day in the future, drones may be used to save lives, Reuters reports. Sweden scientists tested whether a drone could be used to rush defibrillators to people suffering heart attacks.
The Karolinska Institute study found that drones beat ambulance time by about 16 minutes. Researchers sent drones to 18 locations within a 6.2-mile radius in Stockholm where EMTs had responded to cardiac arrests between 2006 and 2013; the ambulance vs. drone arrival times were then compared. The idea is that bystanders would act as life-savers and grab the...
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