Billionaire entrepreneur Elon Musk unveiled a transportation concept on Monday that he said could whisk passengers the nearly 400 miles from Los Angeles to San Francisco in 30 minutes — half the time it takes an airplane.
Billionaire entrepreneur Elon Musk unveiled a transportation concept on Monday that he said could whisk passengers the nearly 400 miles from Los Angeles to San Francisco in 30 minutes — half the time it takes an airplane.