A Medieval Rocket

Year 1312.

If a small crossbow can shoot an arrow hundreds of meters, could a large crossbow send a human to the moon?

With this idea, an old wise man builds a great exploration machine. And as a vehicle, he adapted one of the chimneys of his palace.

Thanks to the discovery of Greek fire that he made on another of his trips, porpulsion shouldn't be a problem, or maybe it?

We will see next March 8 how far our adventurer can go.

Good luck.