One of the germanic tribes was the vandals. truefalse

True. They were a Germanic tribe that lived in the East in the 5th century AD. Most probably, they lived on the territory of today's Poland. Thanks to many fights for supremacy, the Vandals ended up on the Iberian peninsula and even across the Mediterranean sea, in North Africa. They entered the popular culture as a synonym of barbarous tribes who destroyed everything in their sight. In truth, they weren't better or worse than their contemporaries in this respect.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.