THE SPARK OF INVENTION

摘要

Be Grateful You Never Had to take a nap with Thomas Edison. It's not like Edison slept all that much; by his own account he was good for four, maybe five, hours a night, setting aside at least 18 per day for work. That made sense. If you're going to leave the world a list of inventions that includes the lightbulb, the movie camera, the cylinder phonograph, the disc phonograph, advanced fluoroscopy, a commercial stock ticker, a vote tabulator and more, you'd best put in a long day.