Amongst the exhibits on display you will find the following:
A machine capable of travelling submersed in a marine environment, the "Going-Under-The-Water-Safely Device"
A device invented to encrypt and decrypt messages, the "Engine for the Neutralizing of Information by the Generation of Miasmic Alphabets"
A machine to make coffee really quickly "The-Very-Fast-Coffee-Machine"
A device to propel a small projectile accurately and quickly, "The Gonne".