Physical Nature of Himinil

The physics of Himinil are extremely similar to our own. Up is up and down is down. However there are a few important differences. Firstly, the gravity of Himinil is slightly weaker than earths. The most noticeable effect is that someone who can leap 20 ft. would be able to leap 23 ft. instead. This makes it easier for larger airships to be possible. The second major change from our world is a dense atmosphere with more oxygen. This allows for larger animals in general, but also contributes to larger airships. These are the only major changes to the physics of the world.