What evidence was there that Edison actually invented a working bulb?” “There must have been demonstrations.” “Brief ones. A minute at a time…two…That’s how they’re described in all of the articles. A journalist, or an investor, would be led in to see the bulb for a minute. Two at the most, and then ushered straight out. Supposedly this was so that no one could view Edison’s design long enough to steal it. But what if the demonstrations were

