Use the timeline below to select up to 20 seconds to watch or share.
1.77sOkay, then.
4.27sHow many geniuses does it take to invent a lightbulb?
0.52s
0.87s
2.57sjust one: Thomas Edison.
4.57sThat's very good.
2.17sAnd that's true too. It's funny and true.
5.2sNow behind that door is Edison's actual preserved brain.
1.63s
3.69sOrdinarily, folks, tour groups are not allowed to see it,
4.1sand, of course, today will be no exception.
4.35sNow no tour would be complete without a visit to Edison's boyhood gift shop.
3.54s
0.67s
3.26s
2.84s
7.01s