Let There Be Light!

incandescent light bulb

Today is Thomas Edison's birthday. He was an inventor - truly inventing the phonograph, but he was also able to improve upon, mass produce, and popularize many other technological advancements. The media, the workplace, medicine, and the Internet would be vastly different places without Edison.

What do you think Edison's most important contribution was? What do you think our world of 2013 would be like without his advancements?