Business

US Postal Service to boost purchases of electric vehicles

The U.S. Postal Service said it will substantially increase the number of electric-powered vehicles it's buying to replace its fleet of aging delivery trucks, after the Biden administration and environmental groups said the ...

Hi Tech & Innovation

In pandemic, using drones to drop medical supplies from sky

With a loud whir and a whoosh, a fixed-wing drone slingshots out of a medical warehouse, zips through hazy skies at 80 mph, pops open a belly hatch and drops a box of medical supplies. Slowed by a little parachute, the box ...