With Tesla purportedly gearing up to introduce an all-electric semi next month, diesel engine supplier Cummins took some of the automaker’s buzz away on Tuesday, revealed an all-electric prototype truck of its own.
More than two million semis travel some 120,000 miles apiece along America's arterial highways every year at an average efficiency of just 6 MPG. Six. Miles per gallon of diesel—not even Hummers are that wasteful. However, a new "Super Truck" design by Peterbilt has shown it can go the same distance for half the gas.
23-year-old Emily Cummins started her career as an inventor as a young girl tinkering in her grandfather's shed. Now, thanks to a solar-powered fridge that's already in use across Africa, Nobel winners are handing her awards.