I have to admit, even though 36 people lost their lives in the Hindenburg tragedy, this would make for an eye-opening science lesson, especially with an explosion caused by the same gas (hydrogen) created right in the classroom. Mr. Maxwell certainly prepared a good lesson, even if Mark gave away the ending to his classmates.
This is the original footage including what has become very well-known commentary from a man named Herbert Morrison on WLS radio.
This is a colorized version of the same footage.